JP2006041586A - Image playback display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem of a conventional video reproducing and displaying apparatus that reproduces and displays consecutively photographed images at a prescribed interval because an image receiving method of a slide show form can set a display interval at a prescribed interval only. <P>SOLUTION: A video reproducing and displaying apparatus disclosed herein extracts a photographing time of an image recorded in a form of a plurality of image data, measures a difference between the image data, and carries out image reproduction display in the slide show form for the image data group discriminated to be consecutively photographed image data on the basis of the difference by using the difference for the display time. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an image reproduction display device for reproducing an image recorded in a storage medium.

  Conventionally, there is a slide show type image reproduction method as one of methods for reproducing an image recorded in a storage medium (see, for example, Patent Document 1, Patent Document 2, and Non-Patent Document 1).

In the image reproduction display device that implements the image reproduction method, a predetermined interval is set in advance between images, and when changing the display interval time, a button on a remote control device (hereinafter referred to as a remote controller) is used. It was necessary to select using operation, OSD, icon, or the like.
JP 2003-209809 A JP 2003-288068 A Image format standard for digital still cameras (Exif)

  However, in the conventional image reproduction display device, the display interval is set at a constant interval in the slide show type image reproduction method, and thus there is a problem that images taken continuously are reproduced and displayed at a constant interval.

  The most important feature of the present invention is that a shooting time recorded from a plurality of images is extracted, a difference is measured, and a slide show-type image reproduction display is performed using the difference as an image display interval time.

  The image playback / display apparatus of the present invention measures the shooting time of a shot image and sets the difference between the shooting times as a display interval to perform slideshow-type image playback. Therefore, the user can use a remote controller, OSD, icon, or the like. It is possible to easily perform continuous reproduction without selecting a predetermined display interval.

  Next, an embodiment of an image reproduction display device according to the present invention will be described in detail with reference to the drawings.

(Embodiment 1)
FIG. 1 is a block diagram showing a configuration of an image reproduction / display apparatus according to Embodiment 1 of the present invention. The image reproduction display device includes a memory card 10, a memory card interface 11, a memory 12, an image compression / decompression circuit 13, an image processing circuit 14, an image display device 15, a continuous reproduction control unit 20, a shooting time extraction unit 21, and a difference extraction unit 22. The execution processing unit 23 is configured.

  The image data read from the memory card 10 is decompressed and expanded on the memory 12 under the control of the image compression / expansion circuit 13 and at the same time, the photographing time extracting unit 21 extracts the photographing time of the image data. The imaging time of each image data is extracted, and the difference extraction unit 22 extracts the difference in the imaging time between each image data. If the difference between the extracted imaging times is within a certain time, it is determined that continuous imaging is performed. The difference extracted in this manner is stored in the memory 12, and the execution processing unit 23 controls the display of the image data at the interval of the difference stored in the memory 12, and the image processing circuit 14 performs the optimum image correction, and the image display device 15, a slide show-type image reproduction display is performed.

  FIG. 2 shows a flowchart of the continuous reproduction control unit 20. With reference to FIG. 2, the operation of the continuous reproduction control unit 20 in the present embodiment will be described.

  Whether there is image data recorded in the memory card 10 is searched. If there is image data, the image data is read from the memory card 10. At the same time, the photographing time information accompanying the image data is read out.

  If the difference between the extracted shooting time information and the shooting time information of the reference image data is extracted and set within a certain interval, for example, within one second, and if the interval is within one second, Processing is repeated until it is determined that the images are continuously captured images and the image data in the memory card 10 is not continuously captured images, and the image data groups determined to be continuously captured images are managed together. At this time, the extracted difference is stored in the memory 12 at the same time as the difference extraction in order to use it as a display time during image reproduction.

  When all the image data in the memory card 10 has been searched, playback preparation in the slide show format is completed.

  FIG. 4 shows a flowchart of the photographing time extraction unit 21. With reference to FIG. 4, the operation of the photographing time extraction unit 21 in the present embodiment will be described.

  When there is image data in the memory card 10, the shooting time extraction unit 21 decompresses and expands the image on the memory 12 under the control of the image compression / decompression circuit 13 and simultaneously extracts the shooting time of the image data. .

  As a method of extracting a shooting time, image data taken mainly by a digital still camera (hereinafter referred to as a digital camera) is related to the date and time defined by the digital still camera image format standard (hereinafter referred to as an Exif standard). Use tag information.

  First, an original image data generation date / time (DataTimeOriginal) tag describing the date and time taken with an Exif standard digital camera is searched, and if the original image data generation date / time tag exists, the date and time described are displayed. Extract and store as shooting time.

  In addition, when the generation date / time tag of the original image data exists, the DataTimeOriginal sub-sec tag (SubsecTimeOriginal) to be recorded to the second decimal place is searched, and if the DataTimeOriginal sub-sec tag exists, it is extracted to the second decimal place. And remember.

  Next, if the generation date / time tag of the original image data does not exist, a search for a digital data creation date / time (DateTimeDigitized) tag that describes the date and time when the image of the Exif standard is converted into digital data is performed. If it exists, the recorded date and time are extracted as the shooting time and stored.

  Furthermore, if there is a digital data creation date / time tag, the sub-time tag (SubsecTimeDigitized) of the DateTimeDigitized tag that records to the second of the decimal point is searched. If the DateTimeDigitized sub-sec tag exists, the sub-second tag of the decimal point is extracted ,Remember.

  Note that when image data is recorded simultaneously with a digital camera, the original image data generation date tag and the digital data creation tag have the same contents.

  If neither tag exists, the time stamp at which the image data was created is extracted and stored as the shooting time.

  If none of the above, the image data is excluded.

  The difference extraction unit 22 compares the shooting time extracted by the shooting time extraction unit 21 with the shooting time of the reference image data, and if the difference is within a certain interval, the difference extraction unit 22 determines that it is a continuously shot image. Are stored in the memory 12 and image data determined to be continuously shot images are collectively managed as an image data group. In addition, about the setting of a fixed space | interval, there may be a mechanism which a user can change by OSD, an icon, etc.

  The execution processing unit 23 compresses and decompresses the image data in the memory card 10 on the memory 12 to the image compression / decompression circuit 13 when the image data group collectively managed by the difference extraction unit 22 is reproduced and displayed in a slide show format. At the same time as performing the control, the difference extraction unit 22 sets the difference time stored in the memory 12 as the display time, and displays it on the image display device 15 via the image processing circuit 14. This process is repeated during image reproduction display of image data groups managed together.

  When the last image in the group of image data managed together is reached, there is no difference time with the next image, and therefore, the display ends after displaying for a predetermined display time, for example, 5 seconds.

  Referring to FIG. 3, one embodiment of the image reproduction display device of the present invention is shown. FIG. 3 shows an example of displaying an image data group determined to be a continuously shot image.

  When displaying in the so-called index format, the thumbnail images are displayed in a superimposed manner for the number of images that are determined to be continuously shot images, as shown in the upper left corner, or the images are determined to be continuously shot images using icons, etc., in the middle of the lower row. The first image data group may be displayed as a thumbnail image, and the number of continuously shot images may be displayed.

  If the image playback display is selected using the remote control or OSD during the display in the index format, the execution processing unit 23 of the continuous playback control unit 20 recognizes the image data group as a group. The difference time extracted in advance by the difference extraction unit 22 is read from the memory 12, and image reproduction in the slide show format is started with the time as the display time.

  The first image is displayed for 0.5 seconds, the second image is displayed for 1 second, and the third image has no difference time. Therefore, the display time predetermined by the display device, for example, 5 seconds is displayed. After that, the display changes to the index format.

  Next, when displaying images in the slide show format from the upper left end to the lower right end using the remote control or OSD while displaying in the index format, the upper left end and the lower middle are continuous playback controls. Since the execution processing unit 23 of the unit 20 recognizes a group of image data, the difference time extracted in advance by the difference extraction unit 22 is read from the memory 12, and other images are predetermined by the display device. A slideshow-type image reproduction display for display time, for example, 5 seconds is performed.

  As described above, the user can easily perform continuous reproduction without selecting the display interval time when reproducing and displaying continuously shot image data in a slide show format.

  The above-described embodiment is an example of a preferred embodiment of the present invention. However, the present invention is not limited to this, and various modifications can be made without departing from the scope of the present invention.

  INDUSTRIAL APPLICABILITY The image reproduction display device according to the present invention is useful for a user to easily continuously reproduce images continuously selected without selecting a display interval with a remote controller, OSD, icon, or the like when reproducing images in a slide show format. It is.

1 is a system configuration block diagram showing an embodiment of an image reproduction display device of the present invention. Flow chart for determining continuous shooting by the continuous playback control unit 20 An explanatory view showing an example of displaying an image data group Flow chart of shooting time extraction by the shooting time extraction unit 21

Explanation of symbols

10 Memory Card 11 Memory Card Interface (I / F)
DESCRIPTION OF SYMBOLS 12 Memory 13 Image compression / expansion circuit 14 Image processing circuit 15 Image display apparatus 20 Continuous reproduction control part 21 Shooting time extraction part 22 Difference extraction part 23 Execution processing part

Claims (10)

Means for measuring the photographing time of an image photographed by a digital camera, means for extracting a difference between the measured photographing times, means for judging that the photographing was continuously performed from the extracted time, and photographing continuously An image reproduction / display apparatus comprising means for making a group of image data into a group of image data, and a slideshow-type image reproduction unit with a difference in time from which the group of image data is extracted as a display time. 2. The image reproduction display device according to claim 1, wherein the means for measuring the photographing time of the image photographed by the digital camera or the like measures using the generation date and time of the original image data. 2. The image reproduction display device according to claim 1, wherein the means for measuring the photographing time of an image photographed by the digital camera or the like measures using the digital data creation date and time. 2. The image reproduction display device according to claim 1, wherein the means for measuring the shooting time of an image shot by the digital camera or the like measures using a time stamp. 5. The image reproduction display device according to claim 1, wherein the means for measuring the photographing time of an image photographed by the digital camera or the like comprises any one or a combination thereof or all of the claims. The means for determining that images have been continuously shot from the extracted time can be designated as continuous shooting at a set time displayed on an image reproduction display device such as an on-screen display or an icon. The image reproduction display device described. 6. The unit according to claim 1, wherein the means for making a group of image data groups of continuously photographed images can be displayed as a group of image data groups on an image reproduction display device using an on-screen display or an icon. The image reproduction display device according to any one of the above. 8. The image reproduction display device according to claim 1, wherein the means for reproducing the group of image data groups can be designated for reproduction by the image reproduction display device using an on-screen display, an icon, or the like. The image reproduction according to any one of claims 1 to 8, wherein the means for reproducing the group of image data groups extracts a difference between the respective image data from the extracted photographing time and uses the difference as a display time. Display device. The means for reproducing the group of image data groups performs image reproduction using the difference between the extracted times as a display time when performing image reproduction in a normal slide show format. The image reproduction display device according to any one of claims 1 to 9, wherein the image data can be reproduced by a display time set by the image reproduction display device using an on-screen display or an icon.

Images