JP2010199688A - Image display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image display device detecting an image deleted among a series of continuously photographed images, and controlling a display mode of a substitutive image substituted for the deleted image. <P>SOLUTION: The image display device includes: a reading section 13 for reading the series of images from a recording medium 17 recording the series of images with at least one item of information indicating that the images are continuously photographed, information indicating an order of continuous photographing, and information about a photographing time, added thereto; a display section 3 for sequentially displaying the series of images read from the recording medium 17 by the reading section 13; a detecting section 13 for detecting the presence or absence of an image deleted from the recording medium, out of the series of images, based on the information added to the series of images; and a display control section 13 for controlling the display mode of the substitutive image to be displayed on the display section 3 instead of the deleted image when the detecting section 13 detects the deleted image when the series of images are sequentially displayed on the display section 3 at a photographing time interval or a time interval proportional to the photographing time interval. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an image display device that sequentially displays continuously shot images.

  An image reproduction display device that measures a difference from photographing times recorded in a plurality of images and reproduces and displays a series of images determined to be continuously photographed based on the measured difference in a slide show format using the difference as a display time. Has been proposed (see, for example, Patent Document 1).

JP 2006-41586 A

  By the way, in the image reproduction display device described in Patent Document 1, when there is a deleted image in a series of continuously shot images, the presence of the deleted image cannot be detected. In addition, since the difference in shooting time between images taken before and after the deleted image is measured, it may be determined that the images taken before and after the deleted image are not taken continuously.

  An object of the present invention is to provide an image display device capable of detecting a deleted image in a series of continuously shot images and controlling a display form of an alternative image in place of the deleted image. It is to be.

  The present invention solves the above problems by the following means. In addition, in order to make an understanding easy, it attaches | subjects and demonstrates the code | symbol corresponding to embodiment of this invention, but this invention is not limited to this.

  In the image display device of the present invention, a series of images to which at least one of information indicating that the images are continuously captured, information indicating the order of sequentially captured images, and information relating to capturing time is added is recorded. A reading unit (13) that reads the series of images from the recording medium (17), and a display unit (3 that sequentially displays the series of images read from the recording medium (17) by the reading unit (13). ), A detection unit (13) for detecting the presence or absence of an image deleted from the recording medium (17) in the series of images based on the information added to the series of images, When the series of images are sequentially displayed on the display unit (3) at a time interval or a time interval proportional to the shooting time interval, the deleted image is detected by the detection unit (13). When Characterized by comprising a display control unit (13) for controlling the display form of the alternative image displayed on the display unit in place of the image being the deletion (3).

  According to the image display device of the present invention, it is possible to detect a deleted image in a series of continuously shot images, and to control a display form of a substitute image in place of the deleted image.

It is a rear view which shows the external appearance of the digital camera which concerns on embodiment. 1 is a block diagram showing a system configuration of a digital camera according to an embodiment. It is a figure for demonstrating the information added to image data. It is a figure which shows the specific example of the information regarding the continuous imaging | photography added to image data. It is a figure which shows the specific example of the information regarding the continuous imaging | photography added to image data. It is a figure which shows the specific example of the information regarding the continuous imaging | photography added to image data. 6 is a flowchart for explaining processing when frame-by-frame continuous playback of the same group of continuous shot images is performed in the digital camera according to the embodiment. It is a figure which shows the display content of a display part.

  Hereinafter, an image display apparatus according to an embodiment of the present invention will be described with reference to the drawings. An image display device is a device having an image reproduction function, such as an imaging device such as a digital camera or a personal computer (PC). In this embodiment, a digital camera will be described as an example of an image display device. However, the present invention is not limited to this, and has a continuous playback display function such as playback frame advance and slide show. Applicable if available.

  FIG. 1 is a rear view showing an external appearance of the digital camera 1 according to this embodiment. As shown in FIG. 1, a digital camera 1 is provided with a display unit 3 formed of an LCD monitor or the like on the back surface. The display unit 3 records a live view image on a recording medium to be described later. An image based on the existing image data, information related to photographing, and the like are displayed. On the right side of the display unit 3, there is provided a multi-selector 5 that is operated when performing image switching, frame-by-frame playback, and the like when an image is reproduced and displayed on the display unit 3. Further, on the left side of the display unit 3, a playback button 7 that is operated when an instruction to display and display an image on the display unit 3, frame advance speed (for example, 1/4 × speed, 1/2 × speed, 2 × speed, Speed buttons 9a to 9d are provided which are operated when instructing 4) or the like. A release button 11 is provided on the top surface of the digital camera 1 to be operated when instructing photographing of a subject.

  FIG. 2 is a block diagram showing a system configuration of the digital camera 1 according to this embodiment. As shown in FIG. 1, the digital camera 1 is configured by a microprocessor or the like, and includes a control unit 13 that reads and executes an image display program from a memory or the like (not shown) and comprehensively controls each unit of the digital camera 1. Yes. An image sensor 15, a recording medium 17, a display unit 3, and an operation unit 19 are connected to the control unit 13. The image sensor 15 is configured by a CCD, a CMOS, or the like, images subject light through a photographing lens (not shown), and outputs an image signal to the control unit 13. The control unit 13 converts an image pickup signal from the image pickup device 15 from an analog signal to a digital signal, generates image data from the digital signal, information related to shooting such as shooting date and time, exposure, and the like in the generated image data, and will be described later. Information regarding continuous shooting is added.

  The recording medium 17 is a portable recording medium that is detachably attached to a card slot (not shown) provided in the digital camera 1. For example, a CF card, an SD card, smart media, or the like is used. In the recording medium 17, image data generated by the control unit 13, information related to shooting added to the image data, information related to continuous shooting, and the like are recorded in a predetermined format. The operation unit 19 includes a power switch (not shown) for turning on / off the power, a multi selector 5, a playback button 7, speed buttons 9a to 9d, a release button 11, and the like.

  The digital camera 1 can perform single-frame shooting and continuous shooting, and the recording medium 17 stores image data of a single-shot image (hereinafter referred to as single-shot image data) taken continuously and continuous shooting. Both image data of the captured images (hereinafter referred to as continuous image data) are recorded in the order in which they were photographed. As shown in FIG. 3, information related to continuous shooting including information related to shooting, continuous shooting flag, group ID, frame order, frame interval, and the like, and reduced image data are added to the image data. FIG. 4 shows image data 0001. jpg-0010. It is a figure which shows the information regarding the continuous imaging | photography added to jpg (henceforth image data 001-010).

  The continuous shooting flag is a flag set for continuous shooting image data. In FIG. 4, the image data 001,007 without a flag is single-shot image data, and the image data 002-006 and 008-010 with a flag are continuous-shot image data. The group ID is an ID added to the continuous shot image data, and is an identification symbol for distinguishing from other continuously shot images. In FIG. 4, a group ID is added to distinguish between continuous shot image data 002 to 006 with a group ID “A” and continuous shot image data 008 to 010 with a group ID “B”. That is, the image data 002 to 006 with the group ID “A” is continuous shot image data of the same group, and the image data 008 to 010 with the group ID “B” is continuous shot image data of the same group. .

  The frame order is information indicating the order of shooting in a series of images that are in the same group. In the series of continuous shot image data 002 to 006 of group ID “A” in FIG. 4, the continuous shot image data 002 is the first frame, 003 is the second frame, 004 is the third frame, and 005 is the four frames. The eye 006 indicates that the image is the fifth frame. Similarly, the continuous shot image data 007 to 010 of the group ID “B” also indicate the images of the first frame to the third frame, respectively. The frame interval is from the time when exposure is started when an image of continuous shot image data in the previous frame order is taken to the time when exposure is started when an image of own continuous shot image data is taken. Difference. In FIG. 4, the frame interval of the continuous shot image data 003 is 0.3 seconds. This is when the image of the continuous shot image data 002 in the previous frame order “1” is captured. It shows that the difference is from the time when the exposure is started to the time when the exposure is started when the image of the continuous shot image data 003 is captured. Here, a preset frame speed (for example, 10 frames per second), that is, the frame interval of continuous shot image data 002 to 006 of the same group to be imaged at the same frame interval is not constant. This is due to a change in exposure time due to a difference in brightness, a change in time required for focus alignment due to a difference in subject movement, and the like. That is, there is a case in which the frame interval is not constant even for continuous shot image data of the same group.

  In the digital camera 1, when the playback button 7 is pressed by the user, the control unit 13 displays an image based on the single-shot image data 001 recorded on the recording medium 17 on the display unit 3. Next, when the right side of the multi-selector 5 is pressed by the user, the control unit 13 displays an image based on the continuous shot image data 002 on the display unit 3, and when the right side of the multi-selector 5 is long pressed by the user. The control unit 13 performs frame-by-frame playback that sequentially reproduces and displays images based on the image data 001 to 010 on the display unit 3.

  During frame-by-frame playback, for example, as shown in FIG. 5, when the file name “0004.jpg” is changed to “Physical education.jpg”, the continuous shot image data of the same group is in an order different from the frame order. If it is recorded on the recording medium 17, the control unit 13 acquires the frame order included in the information related to continuous shooting, and performs frame-by-frame playback according to the frame order in the continuous shot image data of the same group. Do. That is, after the image of the continuous shot image data 003 is reproduced, the image of the continuous shot image data “physical education.jpg” is reproduced.

  Also, during frame-by-frame playback, single-shot images are displayed sequentially at preset display time intervals, and continuous-shot images are sequentially displayed at shooting time intervals, that is, frame intervals so that the movement of the image changes naturally. Is displayed. Therefore, when the preset display time is 0.5 seconds, the image of the single-shot image data 001 is 0.5 seconds, and the image of the continuous-shot image data 002 is the first frame. Second, continuous-shot image data 003 image is 0.3 seconds, continuous-shot image data 004 image is 0.4 seconds, continuous-shot image data 005 image is 0.3 seconds, and continuous-shot image data 006 image is 0. .Sequentially displayed on the display unit 3 for 2 seconds.

  If any of the speed buttons 9a to 9d is pressed by the user before or during frame advance reproduction, the control unit 13 changes the length of time for displaying one image during frame advance reproduction. For example, when the speed button 9a is set in advance to 1/4 speed, and similarly, the speed buttons 9b, 9c, and 9d are set to 1/2 speed, 2 speed, and 4 speed, respectively, the control unit 13 When the speed button 9a is pressed by the user, the display time is changed to four times the display time of one image. Similarly, when one of the speed buttons 9b, 9c, 9d is pressed, the display time of one image is long. The height is changed to one of ½ times speed, 2 times speed, and 4 times speed. At this time, it is possible to set so as to change the display time length of both the single-shot image and the continuous-shot image, or to change the display time length of only the continuous-shot image.

  In addition, when at least one piece of continuous-shot image data (for example, continuous-shot image data 005 in FIG. 6) has been deleted from the recording medium 17 in frame-by-frame playback, the control unit 13 deletes the deleted continuous shot data. The presence / absence of the photographed image data is detected, and the setting of the substitute image displayed on the display unit 3 in place of the image based on the deleted continuous shot image data and the display time of the substitute image are controlled.

  Hereinafter, with reference to the flowchart shown in FIG. 7, processing when the digital camera 1 according to the embodiment performs frame-by-frame playback of continuously shot images of the same group will be described.

  First, the control unit 13 reads continuous image data of the same group from the recording medium 17 (step S10). For example, the continuous shot image data 002, 003, 004, and 006 of the group ID “A” shown in FIG.

  Next, the control unit 13 uses the continuous shooting image with the group ID “A” from the information related to the continuous shooting added to the continuous shooting image data 002, 003, 004, and 006 with the group ID “A” read in step S10. The presence / absence of continuous image data deleted in the data is detected (step S11). Specifically, the frame order, which is information related to continuous shooting of the continuous shot image data 002, 003, 004, 006, is acquired, the presence / absence of a missing frame is detected, and the fourth frame is missing. It is determined that the continuous image data of the eyes has been deleted.

  When it is detected that there is deleted continuous shot image data (step S11, Yes), the control unit 13 is displayed on the display unit 3 instead of the image based on the deleted continuous shot image data. The alternative image and the display time of the alternative image are set (step S12). First, an image based on continuous shot image data 004 one frame before the deleted continuous shot image data 005 is set as a substitute image. Note that an image based on continuous image data 006 one frame after the deleted continuous image data 005, a black image, or the like can be set as an alternative image. Alternatively, various images can be set as alternative images, for example, when images based on continuous image data 004 and 005 are displayed in a superimposed manner or sequentially, or when images are sequentially displayed, the images are gradually switched.

  Next, the display time of the substitute image is set. First, the frame interval that is information related to continuous shooting added to the continuous shot image data 004 and 006 and the shooting time that is information related to shooting are acquired. Then, the difference from the shooting time of the continuous shooting image data 006 to the shooting time of the continuous shooting image data 004 is calculated, and the frame interval of the continuous shooting image data 004 and the frame interval of the continuous shooting image data 006 are further calculated from the calculated difference. The subtracted time is the frame interval (0.3 seconds) of the continuously shot image data 005 that has been deleted. Therefore, the calculated frame interval of the continuous shot image data 005 is set as the display time of the substitute image.

  If no information about the shooting time is added to the continuous shot image data, the frame interval of the continuous shot image data one frame before or after the deleted continuous shot image data or each frame of the same group The average value of the frame interval of the continuous shot image data is calculated, and the calculated average value is set as the display time.

  It is detected that there is deleted continuous image data (step S11, Yes), and after setting a substitute image and display time (step S12), or it is detected that there is no deleted continuous image data. In a case where the image is based on the continuous image data 002 of the group ID “A”, the control unit 13 sequentially captures images based on the continuous image data 003 for 0.3 seconds. The image based on the data 004 is displayed on the display unit 3 for 0.4 seconds, and the image based on the continuous shot image data 004 set as the substitute image is displayed on the display unit for 0.3 seconds set as the display time of the substitute image. 3, and finally, an image based on the continuous shot image data 006 is displayed on the display unit 3 for 0.2 seconds, whereby the frames of the continuous shot image data 002 to 006 of the group ID “A” are displayed. Ri performs reproduction (step S13).

  In step S13, while the substitute image is displayed on the display unit 3, the control unit 13 performs a display informing the user that the continuous shot image data 005 has been deleted from the recording medium 17. Do it. For example, as shown in FIG. 8, while the continuous shot image I based on the continuous shot image data 004 that is a substitute image is displayed on the display unit 3, the number of frames F deleted from the recording medium 17 and deleted. A message M for informing this is displayed.

  According to the digital camera 1 according to this embodiment, continuous image data deleted from the recording medium 17 can be detected in the same group of continuous image data, and the continuous image is deleted. It is possible to set an appropriate substitute image in place of the image based on the data and a display time of the appropriate substitute image. Therefore, when continuous-shot images are played back frame-by-frame at actual shooting time intervals, even if at least one continuous-shot image data is deleted, the continuous-shot images are reproduced and displayed so that the motion of the image changes naturally. be able to.

  In the above-described embodiment, an example has been described in which continuous shot images shot at a preset frame speed (for example, 10 frames per second) are played back at actual shooting time intervals. It can be determined that the continuous shot image is less changed than the single shot image, and the display time of the continuous shot image is set to be shorter than the display time of the single shot image. In addition, for example, when there is a possibility that several frames with little change such as an image shot by exposure bracketing shooting, an image shot by interval timer shooting (for example, one frame per hour) may continue, It is also possible to set to perform frame-by-frame playback at a higher speed than for other single-shot images for images with few changes. In addition, as a method for discriminating an image with little change, for example, if the difference between the file size of a certain image data and the file size of image data of frames before and after the image data is equal to or less than a predetermined value (preset) The image based on the image data is similar to the image based on the image data of the preceding and succeeding frames, and there is a method for determining that the image is less changed with respect to the images of the preceding and following frames. For example, when shooting wild animals with interval timer shooting, the file size of the image data will be large for frames that contain animals and frames that do not, but all frames that do not appear are those The file size of the image data is not changed. Therefore, the frame-by-frame playback is performed at a high speed while the animal is not captured, and the frame-by-frame playback is performed at a low speed when the animal starts to be captured, so that efficient frame-by-frame playback can be performed.

  In the above-described embodiment, the case-by-frame playback of the continuous-shot image when at least one of the continuous-shot image data of the same group has been deleted has been described as an example. In addition, the present invention can be applied to a slide show in which a series of images are sequentially and sequentially displayed.

  DESCRIPTION OF SYMBOLS 1 ... Digital camera, 3 ... Display part, 5 ... Multi selector, 7 ... Play button, 9a-9d ... Speed button, 13 ... Control part, 15 ... Image sensor, 17 ... Recording medium, 19 ... Operation part.

Claims (5)

A series of images from a recording medium on which a series of images to which at least one of information indicating that the images are continuously captured, information indicating the sequence of continuously captured images, and information related to the capturing time is added is recorded A reading unit for reading
A display unit for sequentially displaying the series of images read from the recording medium by the reading unit;
A detection unit that detects presence or absence of an image deleted from the recording medium in the series of images based on the information added to the series of images;
In the case where the series of images are sequentially displayed on the display unit at a shooting time interval or at a time interval proportional to the shooting time interval, when the deleted image is detected by the detection unit, A display control unit that controls a display form of a substitute image displayed on the display unit instead of the deleted image;
An image display device comprising:   The image display apparatus according to claim 1, wherein the display control unit controls the content of the substitute image and the display time of the substitute image as the display form.   The image display device according to claim 1, wherein the display control unit displays at least one of images taken before and after the deleted image as the substitute image.   The display control unit performs a display in parallel to notify that the deleted image is deleted from the recording medium while displaying the substitute image. The image display device according to any one of claims 3 to 4. The recording medium records a single-shot image taken in one frame,
The display control unit, when displaying the single-shot image and the series of images on the display unit, makes the display time of the series of images shorter than the display time of the single-shot image. The image display apparatus as described in any one of Claims 1-4.

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