JP4054091B2 - Image playback device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an image reproducing apparatus that reproduces an image captured by an imaging apparatus using a solid-state imaging device and recorded on a recording medium.
[0002]
[Prior art]
2. Description of the Related Art In recent years, electronic imaging devices such as digital cameras that use a solid-state imaging device as imaging means and record an image captured by the solid-state imaging device on an image storage medium (recording medium) such as a memory card have been widely used. It was.
[0003]
In this case, if the image data is stored as it is, the amount of data is large and the number of frames (number of frames) that can be recorded is very limited. Therefore, the image data is generally compressed by the image compression circuit and stored. .
Many recent electronic imaging devices include a display device such as an LCD and have a function of reproducing and displaying image data recorded on a recording medium.
[0004]
When the user performs a switch operation for continuously reproducing the image in order to confirm the image recorded on the recording medium, the image data compressed on the recording medium is read and decompressed by the decompression circuit. After restoring the image before compression, the image is displayed on the display for a certain period of time, and the next image data is processed in the same manner to sequentially display the images recorded on the recording medium.
[0005]
As described above, when the recorded image is continuously reproduced and displayed, the image data obtained by decoding the image can be reproduced, but if the image quality is poor or the image data cannot be reproduced, the image data is displayed as it is. Since an image in which noise is conspicuous is displayed, in such a case, a blue back display with a blue surface is performed.
[0006]
In the conventional example, when it is determined that the image data obtained by decoding the image is not suitable for reproduction, the information is stored in a memory or the like, and then when the image data is displayed again from the recording medium, For example, a blue-back display with the entire surface made blue is performed based on information stored in a memory or the like.
[0007]
[Problems to be solved by the invention]
However, even when the reproduction image quality is poor, the image data read out due to a temporary cause may become unsatisfactory image data other than when the image data itself has a defect.
[0008]
For example, there are cases where the connection state of the memory card happens to be close to contact failure, or the image data state is not good due to a lot of noise for some reason at the time of reading. In the case of such a temporary cause, better image data may be obtained when reading is performed when conditions such as a little time are different. On the other hand, in the conventional example, when information indicating that playback is impossible is stored in a memory or the like, the information is referred to next time so that the decryption process is not performed again. For this reason, there is a problem that it is impossible to reproduce a precious image that is determined to be unreproducible.
[0009]
(Object of invention)
  The present invention has been made in view of the above points.Even if there is an image that cannot be played back, the playback image will be displayed without interruption, and this can eliminate discomfort when observing, andAn object of the present invention is to provide an image reproducing apparatus that ensures the possibility of the next reproduction when the cause of the incapability of reproduction is merely temporary.
[0010]
  In order to achieve the above object, an image reproduction apparatus according to an aspect of the present invention is an image reproduction apparatus that continuously reproduces a plurality of image data stored in a storage unit.
  Display means for displaying the reproduced image;
  A setting means for setting the continuous reproduction mode in which the plurality of image data is continuously circulated and reproduced at regular time intervals and displayed on the display means;
  Reproduction processing means for performing reproduction processing of image data read from the storage means when the continuous reproduction mode is set;
  Whether the processed image data processed by the reproduction processing means can be reproduced,Depending on whether or not a predetermined format is satisfied as a playback image every time continuous playback is performedDetermination means for determining;
  Comprising
  When it is determined by the determination means that the processed image data is not reproducible, the processed image data is not sent or prohibited from being sent to the display means, and the reproduction processing means When reproduction processing of the next image data is started and the next image data is determined to be reproducible by the determination means, display of the image currently displayed on the display means is displayed.ThisUpdate to the next image determined to be reproducible.
  An image reproducing apparatus according to another aspect of the present invention is an image reproducing apparatus that continuously reproduces a plurality of image data stored in a storage unit.
  Display means for displaying the reproduced image;
  Setting means for setting the continuous reproduction mode to continuously circulate and reproduce the plurality of image data at regular time intervals and display on the display means;
  Reproduction processing means for performing reproduction processing of image data read from the storage means when the continuous reproduction mode is set;
  Whether or not the processed image processed by the reproduction processing means can be reproduced,Depending on whether or not a predetermined format is satisfied as a playback image every time continuous playback is performedDetermination means for determining;
  Equipped,
  When the determination means determines that the processed image data is not reproducible, the processed image data is not transmitted or prohibited to the display means, and the processed image data is sent to the reproduction processing means. If the image data that has been reproduced again is determined to be reproducible by the determination means, the image currently displayed on the display means is displayed.ThisThe image is updated to the replayed image.
[0011]
  In addition, an image reproducing device according to another aspect of the present invention provides:In an image reproduction apparatus for continuously reproducing a plurality of images stored in a storage means,
Display means for displaying the reproduced image;
A setting means for continuously circulating and reproducing the plurality of images at regular intervals and setting the continuous reproduction mode to be displayed on the display means;
Reproduction processing means for performing reproduction processing of an image read from the storage means when the continuous reproduction mode is set;
Determining means for determining whether the processed image processed by the reproduction processing means is reproducible;,
  Equipped,
  When the determination means determines that the processed image is not reproducible, the processed image is not transmitted or prohibited to the display means, and the processed image is reproduced again by the reproduction processing means. In the case where the replayed image is determined to be reproducible by the determination means, the display of the image currently displayed on the display means is replayed after the predetermined time has elapsed. Update to processed image.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
(First embodiment)
1 to 4 relate to a first embodiment of the present invention. FIG. 1 shows an overall configuration of an electronic imaging apparatus 1 having the function of the image reproducing apparatus of the first embodiment, and FIG. The processing contents in the case of continuous reproduction are shown in a flowchart, FIG. 3 is an explanatory diagram of the operation of continuous reproduction, and FIG. 4 shows a specific example of an image reproduced and displayed in the continuous reproduction mode.
[0018]
As shown in FIG. 1, an electronic imaging device 1 having the function of the image reproducing device of the present embodiment forms an object image and includes an optical system 2 having a focusing lens that is also used for focus adjustment, A solid-state imaging device that photoelectrically converts a subject image formed on the imaging surface by the optical system 2 and an A / D converter that converts an output signal of the solid-state imaging device from an analog signal to a digital signal and outputs the signal. The image pickup unit 3, the signal processing unit 4 that performs various processes on the digital signal output from the image pickup unit 3, and encoding (in a JPEG compression circuit or the like) to compress the output data of the signal processing unit 4. The encoding / decoding unit 5 for performing decoding and decoding in order to decompress the recorded data again, and recording and storing the data encoded by the encoding / decoding unit 5 The main power The image pickup apparatus 1 is detachable and outputs a signal for displaying an image in response to an output from the signal processing unit 4 and a recording medium 6 constituted by a memory card using a flash memory, for example. A display control unit 7 having a frame number superimposing means incorporating a character generator for generating a frame number, a character for warning display, etc., and display of images, frame numbers, etc. controlled based on the output of the display control unit 7 For example, a display 8 including a liquid crystal display element or the like disposed on the back side of the electronic imaging apparatus 1 for performing the focusing operation, a focusing motor 9 for driving the focusing lens of the optical system 2, and the above-described circuits. A control unit 10 that performs overall control of the electronic imaging apparatus 1 including the printer, and a printer interface that is connected to the control unit 10 and connected to an external printer (not shown). And scan 16, and a variety of switches to be described below.
[0019]
The above-mentioned various operation switches are arranged in ascending order of the photographing / reproducing change-over switch 11 for switching the mode of the electronic imaging apparatus 1 between the photographing mode and the reproducing mode, and the objects whose order is defined, for example, frame numbers. An ascending switch 12 for reproducing and displaying the next frame, a descending switch 13 for reproducing and displaying the next frame in reverse order, a continuous reproduction switch 14 for continuously circulating and reproducing and displaying at regular intervals, an electronic A trigger switch 15 and the like for inputting an instruction to the imaging apparatus 1 to shoot and record are provided.
[0020]
  The photographing / reproducing change-over switch 11 is arranged as a rotation switch having a substantially ring shape at a substantially central portion of the upper surface of the electronic imaging apparatus 1, for example, and the trigger switch15Is arranged as a push switch at a position where it can be pressed with the index finger when the electronic imaging device 1 is gripped with the right hand, and the ascending order switch 12 and the descending order switch 13 are arranged as push switches on the right side of the display 8. Has been.
[0021]
In this embodiment, when the playback mode is set by the shooting / playback change-over switch 11 and the continuous playback switch 14 is operated, the playback-processed image is cyclically (circulated) as shown in FIG. ) Are displayed in sequence.
[0022]
  The electronic imaging apparatus 1 includes a display 8 as display means for continuously reproducing and displaying images, a recording medium 6 as storage means for storing a plurality of encoded images, and encoding from the storage means. The image signal (image data) is read out continuously (or sequentially) by the decoding unit 5, the decoding process is performed, and the decoded information is sent to the control unit 10 via the signal processing unit 4. 10RegenerationWhen determining whether or not it is possible and controlling the control unit 10 whether or not to send a reproducible image to the display means via the display control unit 7 according to the determination result, and successively reproducing the image sequentially Is characterized in that it is equipped with an image playback device that always determines whether or not an image to be played back can be played back. On the other hand, the possibility of reproduction is secured.
[0023]
  In the control unit 10RegenerationI'm trying to determine whether it is possible, but the signal processor4Or you can make that decision,RegenerationA reproducible image is sent to the display means via the display control unit 7 according to the determination result of whether or not it is possible.OrControl whether or notthingAlternatively, the signal processing unit 4 may perform the processing.
[0024]
Next, the operation of the electronic image pickup apparatus 1 having such a configuration will be described first.
When shooting, the mode of the electronic imaging device 1 is set to the shooting mode by the shooting / playback changeover switch 11.
[0025]
As a result, power is supplied to the image pickup system such as the image pickup unit 3 and the focusing motor 9, and the subject image formed on the image pickup surface of the image pickup unit 3 by the optical system 2 is converted into a digital electric signal. After the signal processing is performed, the display 8 displays the signal on the display 8. The user determines the composition of the subject while viewing the display 8.
[0026]
On the other hand, the output of the signal processing unit 4 is also input to the control unit 10, where it is determined whether or not the focal position is appropriate. If not, the focusing motor 9 is controlled. The focusing lens of the optical system 2 is driven and controlled so as to be in focus.
[0027]
  If the focus position, composition, etc. are good and the user wants to record an image, the trigger switch15Is pressed, the output of the signal processing unit 4 is encoded by the encoding / decoding unit 5, and the image data is compressed and recorded on the recording medium 6 as one file unit per image, for example, based on a predetermined format. Is done.
[0028]
At this time, the image file includes the image data and additional data including a frame number defined for the image data as data.
[0029]
Next, an operation for reproducing an image recorded by the electronic imaging apparatus 1 will be described.
When reproduction is performed, the mode of the electronic imaging device 1 is set to the reproduction mode by the photographing / reproduction switch 11. When a reproduction frame number designation switch (not shown) is operated, reproduction of an image with a designated frame number is started, and image data corresponding to the frame number is read from the recording medium 6.
[0030]
For example, when the number of the second frame is designated, the image data of the second frame is read out, decoded by the encoding / decoding unit 5, and passed through the signal processing unit 4 and the display control unit 7. Then, the second frame image is displayed on the display 8. At this time, the display control unit 7 generates a character corresponding to the frame number (2 in this case) by the built-in character generator, and displays the character superimposed on the image data.
[0031]
On the other hand, in this playback mode, when the continuous playback switch 14 is turned on, images are cyclically played back and displayed sequentially at a constant display time according to the flowchart shown in FIG.
[0032]
First, the control unit 10 (CPU) determines whether or not it is in the display image of the first step S1. If there is no image being displayed, the variable (or flag) w corresponding to whether or not weighting is set to 0, and the blue back display process of step S3 is performed, and the process proceeds to step S5.
[0033]
In this blue back display processing, image data corresponding to the entire blue color is written in the image memory of the display control unit 7, and this image data is repeatedly displayed on the display 8 to perform the blue back display.
[0034]
If there is an image being displayed as determined in step S1, 1 is set in the variable w as shown in step S4, and the process proceeds to timer reset or measurement start in step S5.
The control unit 10 resets the internal timer and starts measuring the time for reproduction and display, and causes the encoding / decoding unit 5 to start the next frame reproduction process in step S6. In the initial process, the next frame playback process is the first frame playback process.
[0035]
In the present embodiment, the time until the compressed image data of one frame is decoded and reproduced is set to be shorter than the display time for displaying the image of each frame on the display 8, that is, the reproduction processing time. <Display time. By setting in this way, sufficient time is ensured for determining whether or not playback processing and playback after playback processing are possible.
For example, the time required for the reproduction process is set to about 2 seconds (2 s) in FIG. 3, and the display time is set to 5 seconds (5 s) so that the time is sufficient.
[0036]
After starting the next frame reproduction process in step S6, the control unit 10 determines whether or not the time is up in the next step S7. That is, it is determined whether or not a predetermined display time has been reached.
[0037]
In the normal case, this determination does not correspond to the time UP, and the process proceeds to the determination process of the reproduction process completion in step S10. On the other hand, if it is determined in step S7 that the time is up, the warning display in step S8 is turned on to display the warning, and in the next step S9, 0 is set to the variable w, and the process proceeds to step S10.
If the reproduction process is not completed in step S10, the process returns to step S7, and if completed, it is determined whether or not reproduction is possible in the next step S11.
[0038]
For example, during the reproduction process, the decoding unit of the encoding / decoding unit 5 sends information on the result of the decoding process to the control unit 10 via the signal processing unit 4, and the control unit 10 For example, it is checked whether or not a reproduction image satisfies a predetermined format, and it is determined whether or not the reproduction-processed image data can be reproduced.
[0039]
If it is determined that the data cannot be reproduced, even if image data with poor image quality is generated as a result of the decoding process, the image data is not sent to the image memory 7 of the display control unit 7. Alternatively, the process is prohibited, and the process returns to step S6 to immediately start the next frame reproduction process. For this reason, the image data is equivalent to being discarded (in some cases, it may become impossible to generate image data during the decoding process. The reproduction process is interrupted, and information indicating that reproduction is not possible is sent to the control unit 10 in error processing performed as appropriate).
[0040]
On the other hand, if it is determined in step S11 that playback is possible, in the next step S12, the warning display is turned off. Then, in the next step S13, it is determined whether or not the variable w is 0. Do.
[0041]
If the variable w is not 0, it is determined whether or not the time is up in the next step S14, and the process waits until the time is up before moving to the next step S15. On the other hand, if the variable w is 0, the display update process in step S15 is performed.
[0042]
In this display update process, the reproduced image displayed on the display 8 is updated via the display control unit 7. Specifically, the image data decoded by the decoding unit of the encoding / decoding unit 5, that is, the reproduced data is stored (sent out) in the image memory of the display control unit 7 through the signal processing unit 4. ) In this case, the previous image data is updated with this image data. The image data stored in the image memory is converted into an analog image signal via a D / A converter (not shown) and displayed on the display 8 to update the display.
[0043]
After the display update process in step S15, the variable w is set to 1 in the next step S16, and then the process returns to step S5, the timer is reset again, the measurement for the display time is started, and the next frame reproduction process is started. .
[0044]
In such a continuous playback mode, if it is determined in step S1 that there is no image being displayed, blue-back display is performed in step S3. This blue back display is shown in the first screen of FIG. Further, in FIG. 3, the contents of the display and reproduction processing are shown with time, and the first BB of the display is abbreviated as blue back display.
[0045]
If it is determined by the reproduction process that each frame can be reproduced, for example, as shown in FIG. 4A, the images of the first frame, the second frame, and the third frame are sequentially sequentially at regular intervals (for example, 5 s). Is displayed.
[0046]
Next, a characteristic operation content of the present embodiment when a case where reproduction is impossible occurs will be described with reference to FIG.
For example, when it is determined that the second frame is not reproducible, the timing diagram is as shown in FIG. 3A or 3B, and when it is determined that the second and third frames are unreproducible, FIG. If the timing diagram is as shown in (C) and it is determined that reproduction is not possible except for the first frame, it is as shown in FIG. 3 (D).
[0047]
3A to 3D, the horizontal axis of the timing chart of the display and reproduction processing indicates the passage of time, numbers such as 1 and 2 indicate the numbers of the frames to be displayed or reproduced, and the reproduction processing. On the side, NG after the number indicates a case where it is determined that reproduction is impossible. For the sake of simplicity, it is assumed that images from the first frame to the fifth frame are compressed and recorded on the recording medium 6.
[0048]
First, a blue background is displayed (when there is no image being displayed), immediately after the timer is reset, measurement of the display time starts, and the next frame reproduction process (in this case, the first reproduction process is performed, so one frame) Eye reproduction process) is started. Then, after the playback processing time (for example, 2 seconds), the first frame image that has been played back is displayed. In FIG. 3, this state is indicated by an arrow on the upper side from the bottom.
[0049]
As soon as the first frame image is displayed, the reproduction process for the next second frame starts. When it is determined that the second frame image cannot be reproduced after the reproduction processing time (NG in FIG. 3), the reproduction process for the next third frame starts immediately.
[0050]
When the reproduction process of the third frame becomes possible, the third frame image is displayed after the display time of the first frame as shown in FIG. When the third frame is displayed, the reproduction process for the next fourth frame starts immediately.
[0051]
If reproduction is impossible in the third frame reproduction process, the next fourth frame reproduction process is immediately started as shown in FIG. When the fourth frame reproduction process is started, a predetermined display time elapses before the reproduction process is not completed. In this case, this corresponds to the case where the time is up in step S7 of FIG. 2, the warning display ON process in step S8 is performed, and this state continues until the reproduction process is completed. That is, the warning display is performed and the previous frame image is extended and displayed.
[0052]
By extending the previous image and displaying it, even when images that cannot be reproduced continue, it is possible to display the reproduced image without interruption, and to avoid discomfort for the observing user.
[0053]
As a specific example of the display screen in such a state that the previous image is extended and the warning is displayed in this way, for example, as shown in FIG. A few images may be NG, and a warning display for searching for the next image may be performed.
[0054]
When the fourth frame image reproduction process is completed and the image can be reproduced, the fourth frame image is immediately displayed and the fifth frame reproduction process is started (FIG. 3C). reference).
[0055]
On the other hand, if the fourth frame cannot be reproduced, the reproduction process of the next fifth frame image is started immediately as shown in FIG. 3D, and the warning display ON state continues.
When the reproduction of the fifth frame image is completed and the image can be reproduced, the fifth frame image is immediately displayed and the first frame reproduction process which becomes the next frame cyclically. To start.
[0056]
If the second, third and fourth frames and the fifth frame are also unreproducible, the next first frame image reproduction process starts immediately as shown in FIG. 3D, and the warning display ON state continues. . When the reproduction process for the first frame is completed and the image can be reproduced, the warning display is turned off, the image for the first frame is immediately displayed, and the reproduction process for the second frame is started. And the operation | movement mentioned above is repeated cyclically.
[0057]
In the case of FIG. 3D, the first frame is continuously displayed. Even in such a case, the warning display is performed in the present embodiment. Unlike the case where the image of only the first frame is continuously displayed, the user can confirm that the image is operating normally and can reduce discomfort.
[0058]
Also, if it is determined that playback is impossible by determining whether playback is possible or not, the next frame playback process is immediately started, so that even when images that cannot be played back are continuously displayed, they are already displayed. The situation in which the image must be extended can be minimized.
[0059]
In this embodiment for performing such playback processing and image display, for example, as shown in FIG. 3A, even when the second frame becomes unplayable, the display of the first frame is started again cyclically. In this case, the reproduction process is immediately started for the second frame image. After the reproduction process is completed, it is determined whether or not the image can be reproduced. That is, it is always determined whether or not playback is possible for all images recorded on the recording medium 6 and to be played back.
[0060]
By making such a determination, a temporary cause (for example, contact of the removable memory card constituting the recording medium 6 with the memory card holder happens to be inadequate, for example, only one pin is insufficient. If the external environment is applied again, the normal connection state may be restored, or the ambient environment when the continuous playback mode is selected may be a bad environment with a noise source. The image when it is determined that it is impossible to reproduce in step) becomes a reproducible image when the temporary cause of the reproducibility is resolved, and the image can be reproduced and displayed.
[0061]
For example, in FIG. 3A, the second frame image is determined to be unreproducible in the first reproduction process, and similarly determined to be unreproducible in the second time, but between the first and second reproduction processes. When the temporary cause of the reproduction failure is resolved, the reproduction can be performed by determining whether or not the reproduction can be performed after the completion of the second reproduction process. As shown in FIG. The second frame image can be reproduced and displayed.
[0062]
As described above, in most cases, the image captured in the past and compressed and stored in the recording medium 6 cannot be recaptured. Therefore, there is a great merit that it is possible to reproduce an image that cannot be reproduced due to a temporary cause.
[0063]
Also, in the conventional example that does not have the function as in the present embodiment, when it is first determined that reproduction is not possible, the determined information is stored, and when the image is reproduced again, it is processed. It was replaced with a blue back display or the like using information that reproduction was impossible without performing it.
[0064]
For this reason, the user is given the impression that an image that is temporarily unreproducible cannot always be replayed, and the user cannot replay, so a new image is recorded (overwritten) on the image. There is a possibility that it cannot be completely reproduced.
[0065]
In addition, even if the user does not overwrite, there is a possibility that the image capturing apparatus side overwrites it. On the other hand, according to the present embodiment, it is possible to prevent the precious image that cannot be reproduced simply and temporarily from being completely unreproducible.
[0066]
Here, some modified examples related to the first embodiment will be described.
In the above description, the reproduction process performed in step S6 is always “next frame”. However, the next time after the determination of N (unreproducible) in step S11 is not the next frame, The playback process for the same frame may be started. In other words, when one frame is reproduced again and the reproduction cannot be performed twice, the process proceeds to the reproduction processing for the next frame.
[0067]
In the first modified example, since the reproduction process is performed again on the frames that cannot be reproduced, the present invention is not limited to the cyclic continuous reproduction as already exemplified, but any continuous reproduction (that is, reproduction of the same frame is performed). There is an effect of increasing the reproducibility for a reproduction failure due to a temporary cause (including a one-time case).
[0068]
In the second modified example, when [next frame = currently displayed frame] at the time of the processing of step S6, the processing of all the following steps is jumped (however, when a warning display is currently displayed). (Since only the warning display is turned off as in step S12), the process immediately returns to step S5 (in this case, the “next frame” in subsequent step S6 is naturally incremented to the processing of the next frame).
[0069]
In this second modification, when an image that is already being reproduced and displayed is again subject to reproduction processing, it is determined that reproduction is impossible due to a temporary cause that has newly occurred. Is effective in avoiding problems such as being skipped or displaying an illegal warning (more specifically, in this case, “currently displayed frame” means “for example, having a large amount of buffer memory for display” In an apparatus with such a configuration, it is possible to display without fail, as in “an image that is not actually displayed at present but is already developed on the buffer memory as data that has already been successfully reproduced”. As well as “frames of waiting images”).
[0070]
By the way, the first and second modified examples are mainly related to the configuration, but as a third modified example, the modified example mainly related to the application function is described below. For example, there is program playback in which playback is performed sequentially according to the playback order arbitrarily programmed by the operator.
[0071]
In this case, since the playback order is arbitrarily determined, even if it is not cyclic, the same frame may be subject to playback multiple times. Therefore, the effect of the present invention on the playback failure due to the temporary cause is extremely significant. is there.
[0072]
Similarly, as a fourth modified example, if random reproduction is performed in which continuous reproduction is performed in a random order based on a random number generation program for all (or selected) frames, the significance of application of the present invention is the above third. This is the same as the modified example.
[0073]
(Second Embodiment)
Next, a second embodiment of the present invention will be described. The configuration of the imaging apparatus including the present embodiment is basically the same as that in FIG. 1. When an operation for recording an image on the recording medium 6 is performed, if the recording capacity of the recording medium 6 has a margin, Record the same compressed image as two image files. One is a main image and the other is a sub-image. Then, this main image is handled in the same manner as an image in the case of only one image (the sub image plays its role when it becomes impossible to reproduce, and otherwise it does not exist).
[0074]
When continuous playback is selected in the playback mode, each main image is sequentially played back, but the same processing is performed on the sub-image for the frame image that is determined to be unplayable. Is to do.
[0075]
FIG. 5 is a flowchart showing the processing contents of the present embodiment. In this flowchart, in FIG. 2, when it is determined whether reproduction is possible in step S <b> 11, if it is determined that reproduction is not possible, the process does not return to step S <b> 7, and further, it is determined whether there is a sub frame (image). If there is no sub-frame, the process returns to step S7. If there is a sub-frame, the process of starting the sub-frame reproduction process in step 22 is performed. After this process, the process proceeds to step S7. .
[0076]
Others are the same as FIG. In this embodiment, if the recording capacity of the recording medium 6 has a margin, two identical compressed images are generated and stored, so that even if the main image cannot be reproduced, the sub image can be reproduced. The probability of becoming can be increased. If the main image cannot be played back and the sub-image can be played back, the sub-image becomes the main image, and the main image that cannot be played back becomes the sub-image, or The main image that cannot be reproduced may be deleted.
[0077]
According to the present embodiment, up to about half the number of image frames of the recording capacity of the recording medium 6 is recorded as main and sub images, and if further recording is continued from this state, for example, the sub images are erased in the oldest order. A new main-only image is then recorded.
[0078]
Therefore, when the number of recording frames is small, each image can be stored with high reliability. When an image is recorded close to the recording capacity, it is the same as normal image recording.
According to the present embodiment, there is an effect of effectively using the recording capacity of the recording medium, thereby improving the reliability of image storage.
[0079]
In the above-described embodiment, the compressed image is recorded (stored) in the recording medium 6, and when reproduced, the original image is restored by decompression (including a reversible case or an irreversible case). However, in the case of recording and displaying without compression on the recording medium 6, it includes the case of reading and reproducing and displaying.
In addition, embodiments configured by partially combining the above-described embodiments also belong to the present invention.
[0080]
[Appendix]
1. Display means for continuously reproducing and displaying images, storage means for storing a plurality of images, determination means for continuously reading out image signals from the storage means and determining whether or not display is possible, and determination by the determination means Control means for controlling whether or not a reproducible image is sent to the display means according to the result, and in the case of continuously reproducing the image, whether or not the image to be reproduced is reproducible. An image reproducing apparatus characterized by being always judged.
(effect)
For an image that has been determined to be unreproducible due to a temporary cause, it can be determined that the image can be displayed and displayed on the display means when the cause of the transient has been resolved.
[0081]
2. 2. The image reproducing apparatus according to claim 1, wherein the determination as to whether or not display is possible is performed while the reproduction display is already being performed.
(effect)
The reproduced image is displayed without interruption, and there is no discomfort when observing.
[0082]
3. The image reproducing apparatus according to claim 2, wherein the continuous reproduction display has a reproduction time of a predetermined time or more.
(effect)
Sufficient time for determining whether or not playback is possible can be secured.
[0083]
4). If it is not possible to send the next image to the display means after the predetermined time has been reached, the display of the currently displayed image is extended, and the next next image can be sent to the display means. 4. The image reproducing apparatus according to claim 3, wherein the next image is reproduced and displayed on the display means at a point in time.
(effect)
Even when images that cannot be reproduced are continuous, the reproduced images are displayed without interruption, and there is no discomfort when observing.
[0084]
5. 5. The image reproducing apparatus according to claim 4, wherein a predetermined warning is displayed when the display of the currently displayed image after the predetermined time is reached.
(effect)
It prevents misidentification as a failure caused by the same image being reproduced for a long time, and reduces discomfort.
[0085]
6). When the determination means determines that the image is not reproducible, an operation for determining whether or not the image determined to be reproducible or the next image can be displayed is started. The image reproducing device according to claim 1.
(effect)
Even when images that cannot be played back are continuous, if the displayed image is not extended and displayed, it is possible to suppress the situation where the image is interrupted, and the already displayed image must be extended and displayed. The situation can be minimized.
[0086]
7. Display means for continuously reproducing and displaying images, storage means for storing a plurality of images, determination means for continuously reading out image signals from the storage means and determining whether or not display is possible, and determination by the determination means Control means for controlling whether or not a reproducible image is sent to the display means in accordance with the result, and when the image is reproduced continuously, the image to be reproduced is the currently displayed image. An image reproducing apparatus that always determines whether or not reproduction is possible, except in the case of
(effect)
When an image that is already being played back is selected for playback processing again, it is determined that playback cannot be performed due to a temporary cause that has newly occurred. The trouble that the display is made can be avoided.
[0087]
【The invention's effect】
  As described above, according to the present invention,Even if there is an image that cannot be played back, the playback image will be displayed without interruption, and this can eliminate discomfort when observing, andIf the cause of the non-reproduction is only temporary, the possibility of the next playback can be secured if the cause is resolved,In addition, when the playback process does not end within a predetermined time, the display time of the currently displayed image is extended by performing a warning display, preventing the misperception of failure due to the same image being played for a long time, Discomfort can be reduced.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an overall configuration of an electronic imaging apparatus having a function of an image reproduction apparatus according to a first embodiment of the present invention.
FIG. 2 is a flowchart showing processing contents in the case of continuous reproduction.
FIG. 3 is a timing chart of the continuous playback operation.
FIG. 4 is a diagram showing a specific example of an image reproduced and displayed in the continuous reproduction mode.
FIG. 5 is a flowchart showing the processing contents in the case of continuous reproduction in the second embodiment of the present invention.
[Explanation of symbols]
1. Electronic imaging device
3 ... Imaging unit
4 ... Signal processor
5: Encoding / decoding unit
6. Recording medium
7. Display control unit
8 ... Display
10. Control unit
11 ... Shooting / playback switch
14: Continuous playback switch
15 ... Trigger switch

Claims (7)

In an image reproduction apparatus for continuously reproducing a plurality of image data stored in a storage means,
Display means for displaying the reproduced image;
A setting means for setting the continuous reproduction mode in which the plurality of image data is continuously circulated and reproduced at regular time intervals and displayed on the display means;
Reproduction processing means for performing reproduction processing of image data read from the storage means when the continuous reproduction mode is set;
Determining means for determining whether or not the processed image data processed by the reproduction processing means is reproducible depending on whether or not a predetermined format is satisfied as a reproduced image every time continuous reproduction is performed ;
Comprising
When it is determined by the determination means that the processed image data is not reproducible, the processed image data is not sent or prohibited from being sent to the display means, and the reproduction processing means starts playback processing of the next image data, when the next image data is determined to be reproducible by the determination means, the display of the image currently displayed on the display means, those regeneration An image reproducing apparatus, wherein the image is updated to the next image determined to be possible.   2. The image reproducing apparatus according to claim 1, wherein a predetermined time during which an image is displayed on the display means is longer than a reproduction processing time by the reproduction processing means.   If the reproduction process by the reproduction processing unit does not end even after the display time of the image currently displayed on the display unit has elapsed, a warning is displayed on the display unit until the reproduction process is completed. The image reproduction apparatus according to claim 1, wherein the display of the image currently displayed on the display means is extended.   The image scheduled to be displayed next to the image currently displayed on the display means is determined to be unreproducible continuously, and the display time of the image currently displayed on the display means has elapsed. If the reproduction processing by the reproduction processing means does not end, a warning is displayed on the display means until the reproduction processing is completed, and the display of the image currently displayed on the display means is extended. The image reproducing apparatus according to claim 1.   When the reproduction processing by the reproduction processing means is completed, the warning display displayed on the display means is turned off, and the image currently displayed on the display means is updated to the image for which the reproduction processing has been completed. The image reproduction apparatus according to claim 3 or 4, wherein the image reproduction apparatus is characterized in that:   When the above plurality of images are continuously circulated at a certain time and reproduced, even if it is determined that the image cannot be reproduced in the nth cycle, it can be reproduced in the (n + 1) th cycle. 5. The image reproduction apparatus according to claim 1, wherein the image currently displayed on the display means is updated as an image that has been reproduced in the (n + 1) th cycle. In an image reproduction apparatus for continuously reproducing a plurality of image data stored in a storage means,
Display means for displaying the reproduced image;
Setting means for setting the continuous reproduction mode to continuously circulate and reproduce the plurality of image data at regular time intervals and display on the display means;
Reproduction processing means for performing reproduction processing of image data read from the storage means when the continuous reproduction mode is set;
A determination unit that determines whether or not the processed image processed by the reproduction processing unit is reproducible based on whether or not a predetermined format is satisfied as a reproduction image every time continuous reproduction is performed ;
Equipped,
When the determination means determines that the processed image data is not reproducible, the processed image data is not transmitted or prohibited to the display means, and the processed image data is sent to the reproduction processing means. regenerated processed again, image data to which the are again playback process, if it is determined to be reproduced by said judging means, the display of the image currently displayed on the display means, those該再degree reproduction process An image reproduction apparatus characterized in that the image is updated to a new image.

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