WO2018121185A1

WO2018121185A1 - Method for adjusting power of infrared lamp, and photographic equipment

Info

Publication number: WO2018121185A1
Application number: PCT/CN2017/114427
Authority: WO
Inventors: 苏辉; 徐露艳; 董文勇; 王晟; 王鹏飞; 栾国良; 金升阳; 蒋海青
Original assignee: 杭州萤石网络有限公司
Priority date: 2016-12-27
Filing date: 2017-12-04
Publication date: 2018-07-05
Also published as: CN108243311A

Abstract

Disclosed is a method for adjusting the power of an infrared lamp, belonging to the field of photography. The method comprises: in the process of photographic equipment starting an infrared lamp to photograph an image, acquiring an image parameter of the photographed image, with the image parameter being used to indicate the brightness of a current photographic environment; determining whether the image parameter is within a pre-set parameter range; and when the image parameter is not within the pre-set parameter range, adjusting the output power of the infrared lamp. Since an acquired image parameter can indicate the brightness of a photographic environment, the brightness of the photographed environment can be determined according to the image parameter, such that the output power of an infrared lamp can be suitably adjusted according to the brightness of the photographic environment, thereby avoiding the problems of relatively high power consumption and heat generation caused by the infrared lamp always operating at the maximum output power, and prolonging the service life of photographic equipment.

Description

Infrared lamp power adjustment method and camera device

This application claims priority to Chinese Patent Application No. 201611227537.7, entitled "Infrared Lamp Power Adjustment Method and Camera Equipment", filed on December 27, 2016, the entire contents of which are incorporated herein by reference. In the application.

Technical field

The embodiment of the present invention relates to the field of imaging, and particularly relates to a method for adjusting the power of an infrared lamp and an imaging device.

Background technique

In order to meet the needs of people in the night or low-light environment, the current camera equipment is generally equipped with an infrared light, the infrared light as an infrared light source, can provide the camera device with the brightness required for imaging, fill the camera environment.

In the related art, during the operation of the image capturing apparatus, when it is detected that the brightness of the photographing environment is insufficient, the infrared light is activated, and the infrared light will operate at full load at the set rated power. That is to say, the infrared lamps of the current imaging device are all operated at a fixed large output power when starting up.

However, in practical applications, when shooting a scene with a relatively bright environment, such as shooting a close-up scene with more reflections, it may only need a small infrared light output power to meet the actual imaging needs. The infrared lamp is still running at a large rated power, which will increase the energy consumption of the camera device, and since the infrared lamp itself belongs to a large heat-generating electronic component, continuous high-power operation will result in a large amount of heat accumulation of the camera device. , affecting the service life of the equipment.

Summary of the invention

In order to solve the problem of large energy consumption and heat generation caused by the operation of the infrared lamp of the imaging device with a fixed maximum output power, the embodiment of the present application provides a method for adjusting the power of the infrared lamp and an imaging device. The technical solution is as follows:

In a first aspect, a method for adjusting the power of an infrared lamp is provided for use in an image capturing apparatus, the method comprising:

Obtaining image parameters of the captured image during the process of starting the infrared light to capture an image, the image parameter is used to indicate the brightness of the current shooting environment;

Determining whether the image parameter is within a preset parameter range;

When the image parameter is not within the preset parameter range, the output power of the infrared lamp is adjusted.

Optionally, before the acquiring the image parameters of the captured image, the method further includes:

When the infrared lamp is activated, the maximum output power of the infrared lamp is used as the output power of the infrared lamp to emit infrared light.

Optionally, the image parameter includes an automatic exposure value; and determining whether the image parameter is within a preset parameter range includes:

Determining whether the automatic exposure value is within a preset exposure threshold range;

Correspondingly, when the image parameter is not within the preset parameter range, adjusting an output power of the infrared lamp comprises:

Decrease the output power of the infrared lamp when the automatic exposure value is not within the preset exposure threshold range and the automatic exposure value is less than the first preset exposure value;

Increasing an output power of the infrared lamp when the automatic exposure value is not within the preset exposure threshold range, and the automatic exposure value is greater than a second preset exposure value, the second preset exposure value Greater than the first preset exposure value.

Optionally, the image parameter includes an average brightness value; and determining whether the image parameter is within a preset parameter range includes:

Determining whether the average brightness value is within a preset brightness threshold range;

When the average brightness value is not within the preset brightness threshold range, and the average brightness value is less than the first preset brightness value, increasing an output power of the infrared lamp;

When the average brightness value is not within the preset brightness threshold range, and the average brightness value is greater than the second preset brightness value, reducing the output power of the infrared lamp, the second preset brightness value Greater than the first preset brightness value.

Optionally, the reducing the output power of the infrared lamp comprises:

The current output power of the infrared lamp is reduced by a preset power, and the preset power is obtained by multiplying a maximum output power of the infrared lamp by a preset ratio, where the preset ratio is greater than 0 and less than 1;

Correspondingly, increasing the output power of the infrared lamp comprises:

The current output power of the infrared lamp is increased by the preset power.

Optionally, the infrared lamp is provided with a plurality of power control gear positions, each of the plurality of power control gear positions corresponds to one output power, and the plurality of powers are sequentially arranged according to the magnitude of the output power. In the control gear position, the output power corresponding to the two adjacent power control gear positions is different from the preset power;

Correspondingly, the reducing the current output power of the infrared lamp by a preset power comprises:

Lowering a current power control gear of the infrared lamp by one power control gear to reduce the current output power of the infrared lamp by the preset power;

Correspondingly, the increasing the current output power of the infrared lamp by the preset power comprises:

The current power control gear of the infrared lamp is increased by a power control gear to increase the current output power of the infrared lamp by the preset power.

Optionally, the adjusting the output power of the infrared lamp comprises:

The output power of the infrared lamp is adjusted by adjusting a duty ratio of the driving signal, and the driving signal is used to control an output power of a driving circuit of the infrared lamp.

In a second aspect, an imaging apparatus is provided, the imaging apparatus comprising:

An acquiring module, configured to acquire an image parameter of the captured image during the process of starting the infrared light to capture an image, where the image parameter is used to indicate the brightness of the current shooting environment;

a determining module, configured to determine whether the image parameter is within a preset parameter range;

And an adjustment module, configured to adjust an output power of the infrared lamp when the image parameter is not within the preset parameter range.

Optionally, the camera device further includes:

The startup module is configured to: when the infrared light is activated, use the maximum output power of the infrared light as the output power of the infrared light to emit infrared light before the image parameter of the captured image is acquired.

Optionally, the image parameter includes an automatic exposure value; the determining module is configured to determine whether the automatic exposure value is within a preset exposure threshold range;

Correspondingly, the adjustment module comprises:

a reducing unit, configured to reduce an output power of the infrared lamp when the automatic exposure value is not within the preset exposure threshold range, and the automatic exposure value is less than a first preset exposure value;

An increasing unit, configured to increase an output power of the infrared lamp when the automatic exposure value is not within the preset exposure threshold range, and the automatic exposure value is greater than a second preset exposure value, The second preset exposure value is greater than the first preset exposure value.

Optionally, the image parameter includes an average brightness value; the determining module is configured to determine whether the average brightness value is within a preset brightness threshold range;

Correspondingly, the adjustment module comprises:

An increasing unit, configured to increase an output power of the infrared lamp when the average brightness value is not within the preset brightness threshold range, and the average brightness value is less than a first preset brightness value;

a reducing unit, configured to reduce an output power of the infrared lamp when the average brightness value is not within the preset brightness threshold range, and the average brightness value is greater than a second preset brightness value, The second preset brightness value is greater than the first preset brightness value.

Optionally, the reducing unit is configured to reduce a current output power of the infrared light by a preset power, where the preset power is obtained by multiplying a maximum output power of the infrared light by a preset ratio. The preset ratio is greater than 0 and less than 1;

Correspondingly, the increasing unit is configured to increase the current output power of the infrared lamp by the preset power.

Optionally, the infrared lamp is provided with a plurality of power control gear positions, each of the plurality of power control gear positions corresponds to one output power, and the plurality of powers are sequentially arranged according to the magnitude of the output power. The output power corresponding to two adjacent power control gear positions in the control gear position is different from the preset power;

Correspondingly, the reducing unit is used for:

Correspondingly, the increasing unit is used for:

Optionally, the adjustment module is configured to:

In a third aspect, a computer readable storage medium is provided. The computer readable storage medium stores a computer program, and when the computer program is executed by the processor, the method for adjusting the power of the infrared lamp provided by the embodiment of the present application is implemented. The method includes:

Determining whether the image parameter is within a preset parameter range;

The beneficial effects brought by the technical solutions provided by the embodiments of the present application are:

In the embodiment of the present application, the image capturing device may acquire an image parameter of the captured image for indicating the brightness of the current shooting environment during the process of starting the image capturing of the infrared light, and determine whether the image parameter is within the preset parameter range. When the image parameter is not within the preset parameter range, the output power of the infrared lamp is adjusted. Since the acquired image parameter can indicate the brightness of the shooting environment, the brightness of the shooting environment can be determined according to the image parameter, and the output power of the infrared lamp can be adaptively adjusted according to the brightness of the shooting environment, thereby avoiding the maximum output of the infrared light. The problem of energy consumption and heat generation caused by power operation prolongs the service life of the camera equipment.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. Obviously, the drawings in the following description are only some of the embodiments of the present application, and those skilled in the art can obtain other drawings according to the drawings without any creative work.

1 is a flowchart of a method for adjusting power of an infrared lamp according to an embodiment of the present application;

2 is a flow chart of another method for adjusting the power of an infrared lamp according to an embodiment of the present application;

3A is a schematic structural diagram of an image pickup apparatus according to an embodiment of the present application;

FIG. 3B is a schematic structural diagram of another image capturing apparatus according to an embodiment of the present application; FIG.

FIG. 3C is a schematic structural diagram of an adjustment module 330 according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of hardware of an image pickup apparatus according to an embodiment of the present application.

detailed description

In order to make the purpose, technical solution and advantages of the present application more clear, the following will be combined with the accompanying drawings. Please refer to the implementation method for further detailed description.

Before explaining the embodiments of the present application in detail, the implementation environment of the embodiments of the present application is first introduced. The embodiment of the present application is applied to an imaging device configured with an infrared light, and the imaging device can activate an infrared light when detecting that the brightness of the shooting environment is insufficient, and use the infrared light emitted by the infrared light to fill the shooting environment, thereby The camera device provides the brightness required for imaging. Further, the image pickup apparatus further has an image analysis function capable of acquiring a specific image parameter of the captured image by performing image analysis on the captured image. For example, the image capturing apparatus may perform image analysis on the captured image through image analysis software to acquire specific image parameters.

FIG. 1 is a flowchart of a method for adjusting power of an infrared lamp according to an embodiment of the present application. The method is applied to an imaging device. Referring to FIG. 1, the method includes:

Step 101: Acquire an image parameter of the captured image during the process of starting the infrared light to capture an image, where the image parameter is used to indicate the brightness of the current shooting environment.

The image parameter may include an automatic exposure value or an average brightness value, and the like, and may also include other image parameters that can indicate the brightness of the shooting environment, which is not limited in this embodiment of the present application.

Since the image parameter can indicate the brightness of the current shooting environment, the brightness of the shooting environment can be determined according to the acquired image parameters, and the output power of the infrared lamp can be adaptively adjusted according to the ambient brightness.

Step 102: Determine whether the image parameter is within a preset parameter range.

The preset parameter range is used to indicate that the current shooting environment is in a normal brightness range. The preset parameter range can be set according to specific image parameters, and different image parameters can set different preset parameter ranges.

When the image parameter is within the preset parameter range, it indicates that the current shooting environment is in the normal brightness range, and there is no need to adjust the power of the infrared lamp; when the image parameter is not within the preset parameter range, the current location is The shooting environment is not in the normal brightness range and may be too bright or too dark, so the power of the infrared lamp needs to be adjusted.

Step 103: Adjust the output power of the infrared lamp when the image parameter is not within the preset parameter range.

Specifically, when the image parameter is not within the preset parameter range, and according to the image parameter, When the shooting environment is brighter, the output power of the infrared lamp can be reduced to reduce the power consumption and heat generation of the infrared lamp; when the image parameter is not within the preset parameter range, and the shooting environment is determined to be dark according to the image parameter , can increase the output power of the infrared light to increase the brightness required for imaging.

2 is a flowchart of a method for adjusting power of an infrared lamp according to an embodiment of the present application. The method is applied to an image capturing device. Referring to FIG. 2, the method includes:

Step 201: When the infrared light is activated, the maximum output power of the infrared light is used as the output power of the infrared light to emit infrared light.

In the process of capturing an image, the imaging device can activate the infrared lamp to fill light when it detects that the brightness of the shooting environment is insufficient. When the infrared light is activated, the maximum output power of the infrared light can be used as the output power of the infrared light, that is, the infrared light is output at the maximum power.

The maximum output power of the infrared lamp may be a preset power rating of the infrared lamp.

Step 202: Acquire image parameters of the captured image during the process of starting the infrared light to capture an image, where the image parameter is used to indicate the brightness of the current shooting environment.

In the embodiment of the present application, in order to control the output power of the infrared lamp, an image parameter capable of indicating the brightness of the current shooting environment may be acquired during the process of capturing an image, so as to determine the shooting environment according to the acquired image parameter. The brightness, and then the adaptive adjustment of the output power of the infrared lamp according to the ambient brightness.

Specifically, the image parameter may include an automatic exposure value or an average brightness value, and may also include other image parameters that can indicate the brightness of the shooting environment, which is not limited in this embodiment of the present application.

Among them, the automatic exposure (AE, Automatic Exposure) value is used to indicate the automatic gain of the automatic exposure module when the image is taken. Auto exposure is to automatically adjust the captured image according to the intensity of the light. The exposure value can be adjusted by the automatic gain output from the AE module. When the external scene is brighter, the automatic gain of the automatic exposure module will become smaller, that is, the AE value is smaller; when the external scene is darker, the automatic gain of the automatic exposure module will become larger, that is, the AE value is larger. The imaging device can obtain an automatic exposure value of the captured image by acquiring an automatic gain output by the automatic exposure module.

The average brightness value refers to the average value of the brightness values of all the pixels in the image. When the external scene is brighter, the average brightness value of the captured image will become larger; when the external scene is darker, the average brightness value of the captured image will become smaller. The image capturing device can perform image analysis on the captured image, obtain brightness values of all pixels in the captured image, and calculate a ratio between a sum of brightness values of all the pixel points and the number of pixel points, to obtain an average brightness of the image. value.

It should be noted that the process of capturing an image according to the embodiment of the present application may be a process of taking a photo, or a process of capturing a video. When capturing a video, the imaging device can perform image analysis on the image frame in the video to acquire image parameters of the image frame.

Step 203: Determine whether the image parameter is within a preset parameter range.

The preset parameter range is used to indicate that the current shooting environment is in a normal brightness range, and when the image parameter is within the preset parameter range, the power of the infrared lamp does not need to be adjusted. The preset parameter range can be set according to specific image parameters, and different image parameters can set different preset parameter ranges.

Specifically, for different image parameters, determining whether the image parameter is within a preset parameter range may include the following manners:

In the first mode, when the image parameter includes an automatic exposure value, the preset parameter range may be a preset exposure threshold range. Correspondingly, determining whether the image parameter is within the preset parameter range includes: determining whether the automatic exposure value is Within the preset exposure threshold.

The preset exposure threshold range may be a range greater than or equal to the first preset exposure value and less than or equal to the second preset exposure value, that is, the preset exposure threshold range is [the first preset exposure value, the second The interval of the preset exposure value]. The second preset exposure value is greater than the first preset exposure value.

Further, the preset exposure threshold range may be determined according to a standard exposure value, and the preset exposure threshold range may be a preset ratio range of the standard exposure value. For example, assuming the standard exposure value is AE_Thres, the preset exposure threshold range may be [0.9AE_Thres, 1.1 AE_Thres]. and also That is, the AE value of the captured image may fluctuate within a range of 10% above and below AE_Thres.

In a second mode, when the image parameter includes an average brightness value, the preset parameter range may be a specific preset brightness threshold range. Correspondingly, determining whether the image parameter is within the preset parameter range includes: determining the average brightness. Whether the value is within the preset brightness threshold.

The average brightness value may be a range greater than or equal to the first preset brightness value and less than or equal to the second preset brightness value, that is, the preset brightness threshold range is [the first preset brightness value, the second preset The range of the brightness value]. The second preset brightness value is greater than the first preset brightness value.

Further, the preset brightness threshold range may be determined according to a standard brightness value, and the preset brightness threshold range may be a preset ratio range of the standard brightness value. For example, assuming the standard brightness value is Luma_Thres, the preset exposure threshold range may be [0.9Luma_Thres, 1.1Luma_Thres]. That is, the average brightness value of the captured image may fluctuate within a range of 10% above and below Luma_Thres.

It should be noted that the preset exposure threshold range and the preset brightness threshold range on different imaging devices may be different, and the preset exposure threshold range and the preset brightness threshold range on each imaging device may be set by actual verification.

Step 204: Adjust the output power of the infrared lamp when the image parameter is not within the preset parameter range.

When the image parameter is not within the preset parameter range, it indicates that the brightness of the shooting environment indicated by the image parameter is not in the normal brightness range, and the brightness of the surrounding environment may be too bright or too dark, so the output power of the infrared lamp is required. Make adjustments to adjust the brightness of the shooting environment by adjusting the output power of the infrared light.

Specifically, for different image parameters, when the image parameter is not within the preset parameter range, adjusting the output power of the infrared lamp may include the following methods:

The first mode: when the automatic exposure value is not within the preset exposure threshold range, and the automatic exposure value is less than the first preset exposure value, reducing the output power of the infrared light; when the automatic exposure value is not at When the preset exposure threshold is within the range, and the automatic exposure value is greater than the second preset exposure value, the output power of the infrared light is increased, and the second preset exposure value is greater than the first preset exposure value.

Wherein, when the automatic exposure value of the captured image is smaller than the first preset exposure value, it indicates that the current shooting environment is brighter, and the smaller infrared light output power can meet the shooting demand, so The small power consumption can reduce the output power of the infrared lamp; when the automatic exposure value is greater than the second preset exposure value, it indicates that the current shooting environment is dark, and the current infrared lamp output power cannot meet the shooting requirement. Therefore, in order to increase the brightness of the shooting environment, the output power of the infrared lamp can be increased.

The second mode: when the average brightness value is not within the preset brightness threshold range, and the average brightness value is less than the first preset brightness value, increasing the output power of the infrared lamp; when the average brightness value is not at When the preset brightness threshold is within the range, and the average brightness value is greater than the second preset brightness value, the output power of the infrared lamp is decreased, and the second preset brightness value is greater than the first preset brightness value.

Wherein, when the average brightness value of the captured image is less than the first preset brightness value, it indicates that the current shooting environment is dark, and the current infrared lamp output power cannot meet the shooting requirement, so in order to increase the brightness of the shooting environment, Increasing the output power of the infrared lamp; when the average brightness value of the captured image is greater than the second preset brightness value, it indicates that the current shooting environment is dark, and the smaller infrared light output power can meet the shooting demand, so By reducing power consumption, the output power of the infrared lamp can be reduced.

Specifically, the process of reducing the output power of the infrared lamp may include: reducing the current output power of the infrared lamp by a preset power. Correspondingly, the increasing the output power of the infrared lamp may include: increasing the current output power of the infrared lamp by the preset power.

The preset power is obtained by multiplying the maximum output power of the infrared lamp by a preset ratio, and the preset ratio is greater than 0 and less than 1. For example, the preset ratio may be 0.05 or 0.1 or the like. For example, assuming that the maximum output power of the infrared lamp is P, and the preset ratio is 0.05, the preset power is 0.05P. When the image parameter is not within the preset parameter range, the imaging device can increase or decrease the output power of the current infrared lamp by 0.05P.

It should be noted that the process of adjusting the output power of the infrared lamp may be a process of cyclic adjustment, that is, when the image parameters of the captured image are acquired for the first time, and the output power of the infrared lamp is adjusted according to the image parameter. Afterwards, the image capturing device may continue to acquire image parameters of the captured image, determine whether the image parameter is within a preset parameter range, and if it is still not within the preset parameter range, continue to adjust the output power of the infrared light until When it is detected that the acquired image parameter is within the preset parameter range, the adjustment is stopped.

For example, if the preset power is 0.05P, when the automatic exposure value is less than the first preset exposure value, the output power of the current infrared lamp can be reduced by 0.05P, if the automatic exposure of the captured image is continued. The light value, and detecting that the automatic exposure value is still less than the first preset exposure value, continues to reduce the output power of the infrared lamp by 0.05P until the automatic exposure value is detected within the preset exposure threshold range.

In the embodiment of the present application, in order to reduce the output power of the infrared lamp or increase the preset power, and obtain the image parameters of the captured image, a plurality of power control gears may be set for the infrared lamp, and the multiple Each power control gear position in the power control gear position corresponds to one output power, and among the plurality of power control gear positions arranged in order of the output power, the output power corresponding to the adjacent two power control gear positions is different. Preset power. Correspondingly, reducing the current output power of the infrared lamp by the preset power comprises: lowering the current power control gear of the infrared lamp by one power control gear to reduce the current output power of the infrared lamp by the preset power Increasing the current output power of the infrared lamp by the preset power includes: increasing a current power control gear position of the infrared lamp by a power control gear position to increase the current output power of the infrared lamp by the preset power .

In practical applications, the output power of the infrared lamp can be adjusted by adjusting the duty ratio of the driving signal, and the driving signal is used to control the output power of the driving circuit of the infrared lamp. Correspondingly, each power control gear position is used to control the duty ratio of the driving signal, and the infrared lamp output power can be increased or decreased by adjusting the duty ratio of the driving signal by changing the power control gear position. .

In one embodiment, the output power of the infrared lamp can be adjusted by a power output algorithm, that is, the output power of the infrared lamp is determined by the following formula:

P'=(20-count)×t×P

Where P' is the current output power of the infrared lamp, P is the maximum output power of the infrared lamp, count is the adjustment parameter, and t is the preset ratio. t is used to indicate a preset power that is reduced or increased each time the power adjustment process is performed, for example, t may be 0.05, 0.1, or the like.

During the startup of the infrared lamp, the count is initialized to 0, and the output power P' of the infrared lamp is the maximum output power P. In the subsequent process, if it is determined according to the image parameters that the output power of the infrared lamp needs to be reduced, the count is incremented by one; if it is determined according to the image parameters that the output power of the infrared lamp needs to be increased, the count is decremented by one. Repeat the above steps until the image parameters are detected to be within the preset parameters, and the adjustment is stopped.

It should be noted that, corresponding to the above power control gear position, count is equivalent to the reduced power control gear position, and counting 1 is equivalent to lowering one power control gear position, and counting minus 1 is equivalent to increasing one power control gear position.

It should be noted that, in the embodiment of the present application, only two image parameters, namely an automatic exposure value and an average brightness value, are taken as an example, and in actual applications, other image parameters capable of indicating the brightness of the shooting environment may be acquired, and according to In the above manner, the output power of the infrared lamp is adjusted, which is not limited in this embodiment of the present application.

FIG. 3A is a schematic structural diagram of an image pickup apparatus according to an embodiment of the present application. Referring to FIG. 3A, the imaging apparatus includes:

The acquiring module 310 is configured to acquire image parameters of the captured image during the process of starting the infrared light to capture an image, where the image parameter is used to indicate the brightness of the current shooting environment;

The determining module 320 is configured to determine whether the image parameter is within a preset parameter range;

The adjusting module 330 is configured to adjust an output power of the infrared lamp when the image parameter is not within the preset parameter range.

Optionally, referring to FIG. 3B, the image capturing apparatus further includes:

The startup module 340 is configured to: when the infrared light is activated, use the maximum output power of the infrared light as the output power of the infrared light to emit infrared light before acquiring the image parameter of the captured image.

Optionally, the image parameter includes an automatic exposure value; the determining module 320 is configured to determine whether the automatic exposure value is within a preset exposure threshold range;

Accordingly, referring to FIG. 3C, the adjustment module 330 includes:

The reducing unit 331 is configured to reduce an output power of the infrared lamp when the automatic exposure value is not within the preset exposure threshold range, and the automatic exposure value is less than the first preset exposure value;

The increasing unit 332 is configured to: when the automatic exposure value is not within the preset exposure threshold range, And when the automatic exposure value is greater than the second preset exposure value, increasing an output power of the infrared light, the second preset exposure value being greater than the first preset exposure value.

Optionally, the image parameter includes an average brightness value; the determining module 320 is configured to determine whether the average brightness value is within a preset brightness threshold range;

Accordingly, referring to FIG. 3C, the adjustment module 330 includes:

The increasing unit 332 is configured to increase an output power of the infrared light when the average brightness value is not within the preset brightness threshold range, and the average brightness value is less than the first preset brightness value;

The reducing unit 331 is configured to reduce the output power of the infrared lamp when the average brightness value is not within the preset brightness threshold range, and the average brightness value is greater than the second preset brightness value, The second preset brightness value is greater than the first preset brightness value.

Optionally, the reducing unit 331 is configured to reduce a current output power of the infrared light by a preset power, where the preset power is obtained by multiplying a maximum output power of the infrared light by a preset ratio. The preset ratio is greater than 0 and less than 1;

Correspondingly, the increasing unit 332 is configured to increase the current output power of the infrared light by the preset power.

Correspondingly, the reducing unit 331 is configured to:

Correspondingly, the increasing unit 332 is configured to:

Optionally, the adjustment module 330 is configured to:

It should be noted that, when the image pickup device provided by the above embodiment adjusts the power of the infrared lamp, only The division of each of the above functional modules is illustrated by way of example. In practical applications, the above function assignments may be completed by different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the embodiment of the present invention is the same as the embodiment of the method for adjusting the power of the infrared lamp, and the specific implementation process is described in detail in the method embodiment, and details are not described herein again.

FIG. 4 is a schematic diagram showing the hardware structure of an image pickup apparatus 400 according to an exemplary embodiment. For example, the imaging apparatus 400 may be various types of cameras such as a card machine and a SLR camera, or a surveillance camera such as a dome camera or a pan/tilt head, or a terminal having a camera function such as a mobile phone, a computer, or a tablet computer.

Referring to FIG. 4, the imaging apparatus 400 may include one or more of the following components: a processing component 402, a memory 404, a power component 406, a multimedia component 408, an audio component 410, an input/output (I/O) interface 412, and a sensor component 414, And a communication component 416.

Processing component 402 typically controls the overall operation of imaging device 400, such as operations associated with display, data communication, camera operations, and recording operations. Processing component 402 can execute instructions by one or more processors 420 included to perform all or part of the steps of the above methods. Moreover, processing component 402 can include one or more modules to facilitate interaction between component 402 and other components. For example, processing component 402 can include a multimedia module to facilitate interaction between multimedia component 408 and processing component 402.

The memory 404 is configured to store various types of data to support operations in the imaging apparatus 400. These data illustratively include instructions, pictures, video, audio, etc. for any application or method operating on camera device 400. Memory 404 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable. Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Disk or Optical Disk.

Power component 406 provides power to various components of camera device 400. Power component 406 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to camera device 400.

The multimedia component 408 includes a camera that includes a front camera and/or a rear camera. When the imaging apparatus 400 is in an operation mode such as a shooting mode or a video mode, the camera can receive external multimedia data. The camera can be a fixed optical lens system or a device with focal length and optical zoom capability. In one embodiment, the multimedia component 408 includes a screen that provides an output interface between the camera device 400 and a user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user.

Audio component 410 can be used to output and/or input audio signals. For example, the audio component 410 includes a microphone (MIC) that is configured to receive an external audio signal when the camera device 400 is in an operational mode, such as an imaging mode. The received audio signal may be further stored in memory 404 or transmitted via communication component 416. In some embodiments, audio component 410 can also include a speaker for outputting an audio signal.

The I/O interface 412 provides an interface between the processing component 402 and the peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to, a home button, a volume button, and a launch button.

Sensor assembly 414 includes one or more sensors for providing various aspects of state evaluation for imaging device 400. For example, the sensor assembly 414 can detect the on/off state of the camera device 400, the relative positioning of the components, the intensity of the light, and the like. Sensor assembly 414 can include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 414 can also include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

Communication component 416 is configured to facilitate wired or wireless communication between camera device 400 and other devices. The camera device 400 can access a wireless network based on a communication standard such as WiFi (Wireless Local Area Network), 2G or 4G network, or a combination thereof. In an exemplary embodiment, communication component 416 receives broadcast signals or broadcast associated information from an external broadcast management system via a broadcast channel.

In an exemplary embodiment, camera device 400 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), A gated array (FPGA), controller, microcontroller, microprocessor, or other electronic component implementation for performing the above methods.

In an exemplary embodiment, there is also provided a non-transitory computer readable storage medium comprising instructions, such as a memory 404 comprising instructions executable by processor 420 of imaging apparatus 400 to perform the above method. For example, the non-transitory computer readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device.

It will be understood by those skilled in the art that the structure shown in FIG. 4 does not constitute a limitation on the imaging apparatus 400, and the imaging apparatus 400 may include more or less components than those illustrated, or combine some components, or different components. The embodiment of the present application does not limit this.

The embodiment of the present application further provides a computer readable storage medium, where the computer readable storage medium stores a computer program, and when the computer program is executed by the processor, the method for adjusting the power of the infrared lamp provided by the embodiment of the present application is implemented. The method includes:

Determining whether the image parameter is within a preset parameter range;

It can be seen that, since the image parameters acquired in this embodiment can indicate the brightness of the shooting environment, the brightness of the shooting environment can be determined according to the image parameters, and the output power of the infrared light can be adaptively adjusted according to the brightness of the shooting environment, thereby avoiding infrared. The lamp has always been operating at maximum output power, resulting in increased energy consumption and heat production, extending the life of the camera.

A person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium. The storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

The above is only the preferred embodiment of the present application, and is not intended to limit the application. Any modifications, equivalents, improvements, etc. made within the spirit and principles of the present application are included in the scope of protection of the present application. within.

Claims

A method for adjusting the power of an infrared lamp is characterized in that it is applied to an image capturing apparatus, and the method comprises:

Obtaining image parameters of the captured image during the process of starting the infrared light to capture an image, the image parameter is used to indicate the brightness of the current shooting environment;

Determining whether the image parameter is within a preset parameter range;

When the image parameter is not within the preset parameter range, the output power of the infrared lamp is adjusted.
The method of claim 1, wherein before the acquiring the image parameters of the captured image, the method further comprises:

When the infrared lamp is activated, the maximum output power of the infrared lamp is used as the output power of the infrared lamp to emit infrared light.
The method of claim 1, wherein the image parameter comprises an automatic exposure value; and the determining whether the image parameter is within a preset parameter range comprises:

Determining whether the automatic exposure value is within a preset exposure threshold range;

Correspondingly, when the image parameter is not within the preset parameter range, adjusting an output power of the infrared lamp comprises:

Decrease the output power of the infrared lamp when the automatic exposure value is not within the preset exposure threshold range and the automatic exposure value is less than the first preset exposure value;

Increasing an output power of the infrared lamp when the automatic exposure value is not within the preset exposure threshold range, and the automatic exposure value is greater than a second preset exposure value, the second preset exposure value Greater than the first preset exposure value.
The method of claim 1, wherein the image parameter comprises an average brightness value; and the determining whether the image parameter is within a preset parameter range comprises:

Determining whether the average brightness value is within a preset brightness threshold range;

Correspondingly, when the image parameter is not within the preset parameter range, the red The output power of the external light is adjusted, including:

When the average brightness value is not within the preset brightness threshold range, and the average brightness value is less than the first preset brightness value, increasing an output power of the infrared lamp;

When the average brightness value is not within the preset brightness threshold range, and the average brightness value is greater than the second preset brightness value, reducing the output power of the infrared lamp, the second preset brightness value Greater than the first preset brightness value.
The method according to claim 3 or 4, wherein said reducing the output power of said infrared lamp comprises:

The current output power of the infrared lamp is reduced by a preset power, and the preset power is obtained by multiplying a maximum output power of the infrared lamp by a preset ratio, where the preset ratio is greater than 0 and less than 1;

Correspondingly, increasing the output power of the infrared lamp comprises:

The current output power of the infrared lamp is increased by the preset power.
The method of claim 5, wherein the infrared lamp is provided with a plurality of power control gear positions, each of the plurality of power control gear positions corresponding to one output power, and according to the output Among the plurality of power control gears in which the power is sequentially arranged, the output power corresponding to the adjacent two power control gears is different from the preset power;

Correspondingly, the reducing the current output power of the infrared lamp by a preset power comprises:

Lowering a current power control gear of the infrared lamp by one power control gear to reduce the current output power of the infrared lamp by the preset power;

Correspondingly, the increasing the current output power of the infrared lamp by the preset power comprises:

The current power control gear of the infrared lamp is increased by a power control gear to increase the current output power of the infrared lamp by the preset power.
The method of claim 1 wherein said adjusting said output power of said infrared lamp comprises:

The output power of the infrared lamp is adjusted by adjusting a duty ratio of the driving signal, and the driving signal is used to control an output power of a driving circuit of the infrared lamp.
An image pickup apparatus, wherein the image pickup apparatus comprises:

An acquiring module, configured to acquire an image parameter of the captured image during the process of starting the infrared light to capture an image, where the image parameter is used to indicate the brightness of the current shooting environment;

a determining module, configured to determine whether the image parameter is within a preset parameter range;

And an adjustment module, configured to adjust an output power of the infrared lamp when the image parameter is not within the preset parameter range.
The image pickup apparatus according to claim 8, wherein the image pickup apparatus further comprises:

The startup module is configured to: when the infrared light is activated, use the maximum output power of the infrared light as the output power of the infrared light to emit infrared light before the image parameter of the captured image is acquired.
The image pickup apparatus according to claim 8, wherein the image parameter comprises an automatic exposure value; and the determining module is configured to determine whether the automatic exposure value is within a preset exposure threshold range;

Correspondingly, the adjustment module comprises:

a reducing unit, configured to reduce an output power of the infrared lamp when the automatic exposure value is not within the preset exposure threshold range, and the automatic exposure value is less than a first preset exposure value;

An increasing unit, configured to increase an output power of the infrared lamp when the automatic exposure value is not within the preset exposure threshold range, and the automatic exposure value is greater than a second preset exposure value, The second preset exposure value is greater than the first preset exposure value.
The image pickup apparatus according to claim 8, wherein the image parameter comprises an average brightness value; and the determining module is configured to determine whether the average brightness value is within a preset brightness threshold range;

Correspondingly, the adjustment module comprises:

An increasing unit, configured to increase an output power of the infrared lamp when the average brightness value is not within the preset brightness threshold range, and the average brightness value is less than a first preset brightness value;

a reducing unit, configured to reduce an output power of the infrared lamp when the average brightness value is not within the preset brightness threshold range, and the average brightness value is greater than a second preset brightness value, The second preset brightness value is greater than the first preset brightness value.
The image capturing apparatus according to claim 10 or 11, wherein the reducing unit is configured to reduce a current output power of the infrared light by a preset power, and the preset power is a maximum of the infrared light The output power is multiplied by a preset ratio, and the preset ratio is greater than 0 and less than 1;

Correspondingly, the increasing unit is configured to increase the current output power of the infrared lamp by the preset power.
The image pickup apparatus according to claim 12, wherein the infrared lamp is provided with a plurality of power control gear positions, and each of the plurality of power control gear positions corresponds to one output power, and according to Among the plurality of power control gears in which the output power is sequentially arranged, the output power corresponding to the adjacent two power control gears is different from the preset power;

Correspondingly, the reducing unit is used for:

Lowering a current power control gear of the infrared lamp by one power control gear to reduce the current output power of the infrared lamp by the preset power;

Correspondingly, the increasing unit is used for:

The current power control gear of the infrared lamp is increased by a power control gear to increase the current output power of the infrared lamp by the preset power.
The image pickup apparatus according to claim 8, wherein the adjustment module is configured to:

The output power of the infrared lamp is adjusted by adjusting a duty ratio of the driving signal, and the driving signal is used to control an output power of a driving circuit of the infrared lamp.
A computer readable storage medium, wherein the computer readable storage medium stores a computer program, the computer program being executed by a processor to implement the method steps of any of claims 1-7.