CN105657273B - Setting method, device and the mobile terminal of safety shutter time - Google Patents

Abstract

The invention discloses a method, a device and a mobile terminal for setting a safe shutter time. The method includes: when it is detected that the camera function is turned on, acquiring and recording the shaking data of the mobile terminal at intervals of the first set time; according to the shaking data, counting the average movement speed of the mobile terminal within the second set time; according to the set time Calculate the shaking time of the mobile terminal according to the average motion speed and set offset; set the shaking time as the safe shutter time. The invention realizes the setting of the safe shutter time according to the jitter data formed by the user's usage habits, and the photos taken by the safe shutter time will not be blurred and the photos are relatively clear.

Description

Method, device and mobile terminal for setting safe shutter time

technical field

Embodiments of the present invention relate to imaging technology, and in particular to a method, device and mobile terminal for setting a safe shutter time.

Background technique

In the prior art, in the setting of the safe shutter time, the mobile terminal fixes a system safe shutter time as the highest safe shutter time value of the system. No matter what the light is, the exposure time will not exceed this shutter time length. This method theoretically ensures that most users are not easy to blur when taking pictures.

In the photography world, photographers with stable hands are often called iron hands, because they hold mobile terminals and other mobile devices with cameras more stably when taking pictures. But in fact, most users are not professional photographers. These users will inevitably shake when holding mobile terminals, and each person's body control ability is different. It is easy to use a fixed system security shutter time when taking pictures. It is not suitable for every user's usage habits.

Contents of the invention

In view of this, embodiments of the present invention provide a method, device, and mobile terminal for setting a safe shutter time, so as to set the safe shutter time according to the user's usage habits.

In a first aspect, an embodiment of the present invention provides a method for setting a safe shutter time, the method comprising:

When it is detected that the camera function is turned on, the shake data of the mobile terminal is acquired and recorded at intervals of the first set time;

According to the jitter data, count the average movement speed of the mobile terminal within the second set time;

Calculate the shaking time of the mobile terminal according to the average motion speed and the set offset;

The shaking time is set as a safe shutter time.

In the second aspect, the embodiment of the present invention also provides a safety shutter time setting device, the device comprising:

The shaking data acquisition module is used to acquire and record the shaking data of the mobile terminal at intervals of the first set time when it is detected that the camera function is turned on;

An average speed statistics module, configured to count the average movement speed of the mobile terminal within the second set time according to the jitter data;

A shaking time calculation module, used to calculate the shaking time of the mobile terminal according to the average motion speed and the set offset;

A shutter time setting module, configured to set the shaking time as a safe shutter time.

In the technical solution of the embodiment of the present invention, when it is detected that the camera function is turned on, the jitter data of the mobile terminal is acquired and recorded at intervals of the first set time, and according to the jitter data, the average Motion speed, calculate the shaking time of the mobile terminal according to the average moving speed and the set offset, set the shaking time as the safe shutter time, realize the setting of the safe shutter time according to the shaking data formed by the user's usage habits, The photos taken with this safe shutter time will not be blurred, and the photos will be clearer.

Description of drawings

FIG. 1 is a flow chart of a method for setting a safety shutter time provided by Embodiment 1 of the present invention;

Fig. 2 is a flow chart of a method for setting a safety shutter time provided by Embodiment 2 of the present invention;

FIG. 3 is a schematic structural diagram of a safety shutter time setting device provided by Embodiment 3 of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only parts related to the present invention are shown in the drawings but not all content.

Embodiment one

Figure 1 is a flow chart of a method for setting a safe shutter time provided by Embodiment 1 of the present invention. This embodiment is applicable to setting the safe shutter time according to the user's habitual operation. This method can be executed by a mobile terminal, specifically including Follow the steps below:

Step 110, when it is detected that the camera function is turned on, acquiring and recording the shaking data of the mobile terminal at intervals of a first set time.

When a user holds a mobile terminal to take a photo, the hand holding the mobile terminal will shake to a certain extent, causing the mobile terminal to shake accordingly. Due to the different operating habits of each person, when each person takes a photo, the shaking amplitude of the mobile terminal also varies. Different, this will lead to the use of the same system security shutter time is not suitable for every user, the embodiment of the present invention is to set the corresponding security shutter time according to the shake data of the mobile terminal, so as to conform to the user's operating habits.

When the mobile terminal detects that the camera function is turned on, it acquires the jitter data of the mobile terminal once and records the jitter data, and then acquires the jitter data of the mobile terminal every first set time and records the acquired jitter data, that is, once During the photographing process, a plurality of jitter data is acquired and recorded, and the acquisition time of the jitter data is recorded at the same time, and the time interval between the acquisition times of every two adjacent jitter data is the first set time. After the jitter data of the mobile terminal is acquired, the jitter data is recorded, so as to facilitate subsequent statistics of the average speed of the mobile terminal based on the jitter data. The jitter data includes jitter time and corresponding amplitude, and the jitter time is the same as the acquisition time of the jitter data. When acquiring the shake data, it may be acquired through a sensor capable of acquiring motion conditions such as a gyroscope or an OIS (Optical Image Stabilizer, optical image stabilizer).

Wherein, the first set time is preferably not greater than the system safety shutter time, so that the mobile terminal can obtain the maximum amplitude of shaking, that is, the complete shaking motion of the mobile terminal can be recorded.

Step 120, according to the jitter data, calculate the average movement speed of the mobile terminal within the second set time.

According to the jitter data recorded during the multiple photographing processes within the second set time, when the second set time is reached, the average movement speed of the mobile terminal within the second set time is counted, that is, according to the jitter data in the jitter data The average moving speed of the mobile terminal can be calculated from the shaking time and corresponding amplitude. The second set time can be set as required, such as one day, one week or one month.

Step 130, calculating the shaking time of the mobile terminal according to the average moving speed and the set offset.

Wherein, the set offset can be obtained according to the number of pixels allowed to be offset in a photo, that is, within the set offset, the captured photo looks clear and not blurred.

According to the average moving speed and the set offset, the time required for the mobile terminal to shake from the origin to the set offset is calculated, and this time is the shake time.

Step 140, setting the shaking time as a safe shutter time.

The shaking time is set as the safe shutter time, that is, the shaking time replaces the current system safe shutter time of the mobile terminal or the current safe shutter time, and is set as a new safe shutter time. When the ambient light is poor, by extending the exposure time to the set safe shutter time, the maximum shake of the mobile terminal is the set offset. When the shake is within the set offset, the photo will be exposed from the beginning. The number of pixels shifted by the end of the exposure cannot be directly seen by the human eye, that is, the photos taken are clear and not blurred.

Wherein, setting the shaking time as the safe shutter time preferably includes:

When the absolute value of the difference between the shaking time and the system safety shutter time is not greater than the set threshold, the shaking time is set as the safety shutter time.

When the jittering time is within a certain allowable time range, that is, the absolute value of the difference between the jittering time and the system safety shutter time is not greater than the set threshold, the jittering time is set as the safety shutter time, so It avoids setting the jitter time that is greatly different from the system safe shutter time as the safe shutter time, thereby avoiding the blurring of the captured photos.

In the technical solution of this embodiment, when it is detected that the camera function is turned on, the jitter data of the mobile terminal is acquired and recorded at intervals of the first set time, and according to the jitter data, the average movement of the mobile terminal within the second set time is counted Speed, calculate the shaking time of the mobile terminal according to the average motion speed and the set offset, and set the shaking time as the safe shutter time, which realizes setting the safe shutter time according to the shaking data formed by the user's usage habits, through The photos taken at this safe shutter time will not be blurred, and the photos will be clearer.

On the basis of the above technical solution, according to the jitter data, counting the average movement speed of the mobile terminal within the second set time preferably includes:

According to the shake data, summarize the movement rules of the mobile terminal during the photographing process;

According to the law of motion, calculate the motion speed of the mobile terminal during the photographing process;

According to the moving speed, the average moving speed of the mobile terminal within the second set time is counted.

Perform statistics on the jitter data of the mobile terminal at the second set time, and summarize the motion law of the mobile terminal during a photographing process, that is, the motion law can be summarized according to the jitter amplitude and jitter time in the jitter data, and the jitter curve can be drawn; The jitter curve calculates the moving speed of the mobile terminal during a photographing process; calculates the average moving speed of the mobile terminal within the second set time according to the moving speed during each photographing process within the second set time. The average movement speed obtained by such statistics is more accurate.

On the basis of the above technical solution, calculating the movement speed of the mobile terminal during the photographing process preferably includes:

According to the law of motion, the movement displacement and movement time of the mobile terminal during the photographing process are counted;

According to the movement displacement amount and the movement time, the movement speed of the mobile terminal during the photographing process is calculated.

According to the law of motion, the movement displacement (i.e. the total distance of movement) and the movement time of the mobile terminal during a photographing process are counted. When the law of movement is a drawn shaking curve, the movement time, movement displacement Calculated according to the shaking curve; according to the movement displacement and movement time, the movement speed of the mobile terminal during the photographing process (the movement speed here is also the average speed) can be calculated. The time required to calculate the motion speed by such a calculation method is relatively short, and the calculation speed is relatively fast.

Embodiment two

Fig. 2 is a flow chart of a method for setting a safe shutter time provided by Embodiment 2 of the present invention. This embodiment optimizes Embodiment 1, and acquires and records the first interval setting time in Embodiment 1. The optimization of the jitter data of the terminal is to acquire the jitter data of the mobile terminal at intervals of a first set time, and record the jitter data when the jitter amplitude in the jitter data is within a set range. Specifically include the following steps:

Step 210, when it is detected that the camera function is turned on, acquiring shaking data of the mobile terminal at intervals of a first set time.

When the mobile terminal detects that the camera function is turned on, the shake data of the mobile terminal is acquired once and recorded, and then the shake data of the mobile terminal is acquired once every first set time and the acquired shake data is recorded. The jitter data includes jitter time and corresponding amplitude.

Step 220, when the jitter amplitude in the jitter data is within a set range, record the jitter data.

When the jitter amplitude in the jitter data exceeds the set range, the jitter data is omitted, that is, the jitter data is not recorded, that is, if the jitter amplitude in the jitter data is greater than the maximum value of the set range or less than the minimum value of the set range When the value is set, it is omitted, and only the jitter data whose jitter amplitude is within the set range in the jitter data is recorded. Because when the jitter amplitude in the jitter data is too large, the user may move the mobile terminal to another location, which is not the natural jitter when the user takes a photo, so such jitter data is meaningless and omitted; the jitter amplitude in the jitter data If it is too small, the user may use a tripod to support the mobile terminal, which does not conform to the user's own usage habits, so there is no need to record the jitter data.

When recording the jitter data, it is also possible to count the average amplitude of the jitter data within a period of time. If the average amplitude is less than the set value, the mobile terminal is considered to be relatively static, and this section of data is omitted, and this section of data is not recorded.

Step 230, according to the jitter data, calculate the average movement speed of the mobile terminal within the second set time.

Step 240, calculating the shaking time of the mobile terminal according to the average moving speed and the set offset.

Step 250, setting the shaking time as a safe shutter time.

In the technical solution of this embodiment, when it is detected that the camera function is turned on, the jitter data of the mobile terminal is acquired at intervals of the first set time, and when the jitter amplitude in the jitter data is within a set range, the jitter data is recorded , according to the jitter data, count the average movement speed of the mobile terminal within the second set time, calculate the jitter time of the mobile terminal according to the average movement speed and the set offset, and set the jitter time to be safe The shutter time realizes the setting of the safe shutter time based on the shake data formed by the user's usage habits, and the photos taken through the safe shutter time will not be blurred. Compared with Embodiment 1, this embodiment sets The jitter data within the range is used to set the safe shutter time, so that the set safe shutter time is more in line with the user's usage habits, and the photos taken are clearer.

Embodiment three

FIG. 3 is a schematic structural diagram of a safety shutter time setting device provided in Embodiment 3 of the present invention. As shown in FIG. 3 , the safety shutter time setting device in this embodiment includes: a shaking data acquisition module 310, Average speed calculation module 320, shaking time calculation module 330 and shutter time setting module 340.

Wherein, the jitter data acquisition module 310 is used to acquire and record the jitter data of the mobile terminal at intervals of the first set time when it is detected that the camera function is turned on;

The average speed statistics module 320 is used to count the average movement speed of the mobile terminal within the second set time according to the jitter data;

The shaking time calculation module 330 is used to calculate the shaking time of the mobile terminal according to the average motion speed and the set offset;

The shutter time setting module 340 is used to set the shaking time as a safe shutter time.

Preferably, the jitter data acquisition module 310 includes:

The shaking data acquisition unit is used to acquire the shaking data of the mobile terminal at intervals of the first set time when it is detected that the camera function is turned on;

The jitter data recording unit is configured to record the jitter data when the jitter amplitude in the jitter data is within a set range.

Preferably, the average speed statistics module 320 includes:

A motion rule summary unit, configured to summarize the motion rule of the mobile terminal during the photographing process according to the jitter data;

A motion speed calculation unit, configured to calculate the motion speed of the mobile terminal during the photographing process according to the motion law;

The average speed statistics unit is configured to count the average movement speed of the mobile terminal within the second set time according to the movement speed.

Preferably, the movement speed calculation unit is specifically used for:

According to the law of motion, the movement displacement and movement time of the mobile terminal during the photographing process are counted;

According to the movement displacement amount and the movement time, the movement speed of the mobile terminal during the photographing process is calculated.

Preferably, the shutter time setting module 330 is specifically used for:

When the absolute value of the difference between the shaking time and the system safety shutter time is not greater than the set threshold, the shaking time is set as the safety shutter time.

Preferably, the first set time is not greater than the system safety shutter time.

In the technical solution of this embodiment, when the jitter data acquisition module detects that the camera function is turned on, the jitter data of the mobile terminal is acquired and recorded at intervals of the first set time, and the average speed calculation module counts the jitter data of the mobile terminal according to the jitter data. 2. The average motion speed within the set time, the shaking time calculation module calculates the shaking time of the mobile terminal according to the average moving speed and the set offset, and the shutter time setting module sets the shaking time as a safe shutter time to realize In order to set the safe shutter time according to the jitter data formed by the user's usage habits, the photos taken through the safe shutter time will not be blurred.

Embodiment four

Embodiment 4 of the present invention provides a mobile terminal, the mobile terminal includes a camera, and also includes the safety shutter time setting device provided in any embodiment of the present invention.

The above-mentioned product can execute the method provided by any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention, and the present invention The scope is determined by the scope of the appended claims.

Claims (13)

1. A method for setting a safe shutter time, characterized in that the method comprises: During a photographing process when it is detected that the photographing function is turned on, the shake data of the mobile terminal is acquired and recorded at intervals of the first set time; According to the jitter data recorded during the multiple photographing process within the second set time, the average movement speed of the mobile terminal within the second set time is counted; Calculate the shaking time of the mobile terminal according to the average motion speed and the set offset; The shaking time is set as a safe shutter time. 2. The method according to claim 1, wherein when it is detected that the camera function is turned on, acquiring and recording the shaking data of the mobile terminal at intervals of the first set time comprises: When it is detected that the camera function is turned on, the shake data of the mobile terminal is acquired at intervals of the first set time; When the jitter amplitude in the jitter data is within a set range, record the jitter data. 3. The method according to claim 1 or 2, characterized in that, according to the jitter data recorded during multiple photographs within the second set time, the average movement speed of the mobile terminal within the second set time is counted include: According to the shake data, summarize the movement rules of the mobile terminal during the photographing process; According to the law of motion, calculate the motion speed of the mobile terminal during the photographing process; According to the moving speed, the average moving speed of the mobile terminal within the second set time is counted. 4. The method according to claim 3, wherein, according to the law of motion, calculating the motion speed of the mobile terminal during the photographing process comprises: According to the law of motion, the movement displacement and movement time of the mobile terminal during the photographing process are counted; According to the movement displacement amount and the movement time, the movement speed of the mobile terminal during the photographing process is calculated. 5. The method according to claim 1 or 2, wherein setting the shaking time as a safe shutter time comprises: When the absolute value of the difference between the shaking time and the system safety shutter time is not greater than the set threshold, the shaking time is set as the safety shutter time. 6. The method according to claim 1 or 2, wherein the first set time is not greater than a system safety shutter time. 7. A setting device for a safe shutter time, characterized in that the device comprises: The jitter data acquisition module is used to acquire and record the jitter data of the mobile terminal at intervals of the first set time during a photographing process when the camera function is detected to be turned on; The average speed statistics module is used to count the average movement speed of the mobile terminal within the second set time according to the shaking data recorded during the multiple photographing process within the second set time; A shaking time calculation module, used to calculate the shaking time of the mobile terminal according to the average motion speed and the set offset; A shutter time setting module, configured to set the shaking time as a safe shutter time. 8. The device according to claim 7, wherein the jitter data acquisition module comprises: The shaking data acquisition unit is used to acquire the shaking data of the mobile terminal at intervals of the first set time when it is detected that the camera function is turned on; The jitter data recording unit is configured to record the jitter data when the jitter amplitude in the jitter data is within a set range. 9. The device according to claim 7 or 8, wherein the average speed statistics module comprises: A motion rule summary unit, configured to summarize the motion rule of the mobile terminal during the photographing process according to the jitter data; A motion speed calculation unit, configured to calculate the motion speed of the mobile terminal during the photographing process according to the motion law; The average speed statistics unit is configured to count the average movement speed of the mobile terminal within the second set time according to the movement speed. 10. The device according to claim 9, wherein the movement speed calculation unit is specifically used for: According to the law of motion, the movement displacement and movement time of the mobile terminal during the photographing process are counted; According to the movement displacement amount and the movement time, the movement speed of the mobile terminal during the photographing process is calculated. 11. The device according to claim 7 or 8, wherein the shutter time setting module is specifically used for: When the absolute value of the difference between the shaking time and the system safety shutter time is not greater than the set threshold, the shaking time is set as the safety shutter time. 12. The device according to claim 7 or 8, wherein the first set time is not greater than a system safety shutter time. 13. A mobile terminal, comprising a camera, further comprising the device for setting a safe shutter time according to any one of claims 7-12.