WO2011048780A1 - Image playback device and image playback method - Google Patents

Image playback device and image playback method Download PDF

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Publication number
WO2011048780A1
WO2011048780A1 PCT/JP2010/006106 JP2010006106W WO2011048780A1 WO 2011048780 A1 WO2011048780 A1 WO 2011048780A1 JP 2010006106 W JP2010006106 W JP 2010006106W WO 2011048780 A1 WO2011048780 A1 WO 2011048780A1
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WIPO (PCT)
Prior art keywords
image data
display
unit
reproduction
image
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PCT/JP2010/006106
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French (fr)
Japanese (ja)
Inventor
充照 片岡
龍明 三俣
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パナソニック株式会社
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Publication of WO2011048780A1 publication Critical patent/WO2011048780A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
    • H04N5/772—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera the recording apparatus and the television camera being placed in the same enclosure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
    • H04N9/8205—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal

Definitions

  • the present invention relates to an apparatus and method for performing slide show display of a plurality of images captured by a camera such as a digital still camera (hereinafter referred to as "DSC").
  • a camera such as a digital still camera (hereinafter referred to as "DSC").
  • FIG. 8 is a block diagram showing the configuration of a conventional image reproduction system 1600.
  • the image reproduction system 1600 includes an imaging device 1110, a recording medium 1120, and an image reproduction device 1730.
  • the photographing device 1110 is a DSC, and includes a photographing unit 1111, a metadata generation unit 1112, a metadata addition unit 1113, and a writing unit 1114.
  • the imaging unit 1111 receives optical information of a subject, converts the information into electrical information, and outputs the information as a plurality of image data.
  • the imaging unit 1111 may be a lens, an imaging device such as a CCD, a JPEG (Joint Photographic Experts Group) encoder, or the like, which is a component of the DSC.
  • the metadata generation unit 1112 generates and outputs metadata (additional information) of the photographed picture.
  • the metadata may be an attribute or state of the photographing apparatus 1110, a photographing condition of the photographing unit 1111, or the like. That is, the metadata indicates, for example, the maker of the photographing apparatus 1110, model or model number, serial number, brightness at photographing, aperture value, shutter speed, photographing mode, photographing date and time, photographing location, GPS (Global Position information of Positioning System), etc. may be used.
  • the metadata addition unit 1113 combines the metadata output from the metadata generation unit 1112 with a plurality of image data as additional information.
  • the EXIF (Exchangeable Image File Format) standard has been proposed as an example of a format for adding metadata to JPEG still images.
  • the EXIF standard is an industry standard standard and is adopted by a large number of DSCs.
  • the metadata addition unit 1113 may be an encoder of EXIF data.
  • the writing unit 1114 writes the plurality of image data output from the metadata adding unit 1113 in the recording medium 1120.
  • the writing unit 1114 may be a reader / writer of the memory card.
  • the recording medium 1120 is a bridge medium that stores a plurality of image data. That is, the recording medium 1120 can be inserted into and connected to either the photographing device 1110 or the image reproduction device 1730. Therefore, by the recording medium 1120, a plurality of image data can be shared between two devices.
  • the recording medium 1120 may be, for example, a semiconductor memory card such as an SD memory card or a compact flash card, an optical disk such as a removable HDD (Hard Disk Drive), an SSD (Solid State Drive), or a Blu-ray Disc.
  • the image reproduction device 1730 includes an operation input unit 1131, a reading unit 1132, a reproduction unit 1635, and a presentation unit 1136.
  • the operation input unit 1131 is a device that receives an operation request for the image reproduction device 1730 from the user.
  • the operation input unit 1131 may be a switch attached to the main body of the operation input unit 1131, a remote control and its receiving unit, a pointing device, a microphone and a voice recognition device.
  • a function such as reproduction of a plurality of images is called.
  • the reading unit 1132 reads a plurality of image data from the recording medium 1120 and outputs a plurality of image data.
  • the recording medium 1120 is a memory card
  • the reading unit 1132 may be a reader / writer of the memory card.
  • the reproduction unit 1635 decodes the plurality of image data output from the reading unit 1132 and outputs graphic data.
  • the reproduction unit 1635 may be a JPEG decoder.
  • the reproduction unit 1635 also has a decryption function.
  • the presentation unit 1136 displays the graphic data output from the reproduction unit 1635 as a video that can be perceived by the user visually.
  • the presentation unit 1136 may be a display device such as a liquid crystal display (LCD) or a plasma display panel (PDP).
  • LCD liquid crystal display
  • PDP plasma display panel
  • FIG. 9 is a flowchart 1710 when reproducing a plurality of images according to the conventional image reproduction system 1600.
  • the reading unit 1132 sequentially reads a plurality of image data (a plurality of photographs) stored in the recording medium 1120 one by one (step S1211).
  • the order of reading a plurality of image data may be the order of characters in directory names and file names, or the order of shooting date and time.
  • the reading unit 1132 confirms whether all the photos have already been read (step S1212). If all the photos have already been read ("Yes" in step S1212), it is determined that the reproduction of all the images has ended, and the reproduction processing of the plurality of images is ended.
  • step S 1212 If all the photos have not been read (“No” in step S 1212), the reproduction unit 1635 decodes the image data output from the reading unit 1132. Then, the presentation unit 1136 presents the decoded image data to present one picture to the user (step S1213).
  • the predetermined time may be, for example, several seconds. That is, it waits for the time set in advance by the image reproduction device 1600 to elapse. Photos are displayed one by one in the presentation unit 1136 in step S 1213, but if, for example, the user does not wait at all in step S 1218, the user proceeds to the next photo before sufficiently recognizing the photos displayed in the presentation unit 1136. There is a possibility of Therefore, by waiting for a predetermined time to elapse in step S1218, the user recognizes a content taken in each photo and creates a temporal grace to enjoy.
  • the imaging device 1110 may be equipped with a function of imaging by switching between a mode in which images are captured one by one and a continuous imaging mode in which images are captured several times or more per second. When you play back multiple photos taken at equal time intervals, (1) In the case where the time interval is short, an image having only one sheet such as a group photograph is displayed for a moment only and is overlooked among a huge number of images taken in the continuous shooting mode.
  • DSCs for consumer use can capture several hundred frames (pieces) or more per second.
  • the image reproduction apparatus of the present invention includes a reading unit, an additional information reading unit, a reproduction control unit, a reproduction unit, and a display unit.
  • the reading unit reads a plurality of image data.
  • the additional information reading unit reads additional information added to the plurality of image data.
  • the reproduction control unit determines, based on the additional information, whether or not the plurality of image data are continuously photographed image data, and sets a display interval when sequentially displaying the plurality of image data according to the determination result. .
  • the reproduction unit decodes a plurality of image data based on the display interval.
  • the display unit displays a plurality of decoded image data.
  • the reproduction control unit determines that the plurality of image data is not the plurality of continuously captured image data when the difference between the plurality of image data shooting dates and times is equal to or more than the first threshold, and the display interval is the second display interval And the reproduction unit to decode a plurality of image data.
  • the reproduction control unit determines that the plurality of image data are the plurality of continuously captured image data, and the display interval is first
  • the reproduction unit is set to the display interval of and the plurality of image data are decoded.
  • the reproduction control unit determines that the difference between the shooting date and time between the decoded image data and the image data to be decoded next to the decoded image data is less than the second threshold, which is smaller than the first threshold.
  • the playback unit does not decode the plurality of image data until the difference between the shooting date and time becomes equal to or greater than the second threshold.
  • the steps of reading a plurality of image data, reading additional information added to the plurality of image data, and an image obtained by continuously photographing the plurality of image data based on the additional information Determining whether or not the data is data, and setting a display interval when displaying a plurality of image data sequentially according to the determination result; decoding a plurality of image data based on the display interval; And displaying the plurality of pieces of image data.
  • the step of setting the display interval determines that the plurality of image data is not the plurality of continuously captured image data if the difference between the shooting date and time of the plurality of image data is the first threshold or more, and the display interval is the second
  • the plurality of image data are decoded in the step of setting the display interval of and decoding.
  • the step of setting the display interval determines that the plurality of image data are a plurality of continuously captured image data when the difference between the shooting date and time of the plurality of image data is less than the first threshold, and the display interval Is set to the first display interval and the decoding step is performed to decode a plurality of image data.
  • the difference between the shooting date and time between the decoded image data and the image data to be decoded next to the decoded image data is less than a second threshold smaller than the first threshold. In this case, decoding of a plurality of image data is not performed in the decoding step until the difference between the shooting date and time becomes equal to or greater than the second threshold.
  • FIG. 1A is a diagram showing a configuration of an image reproduction system according to Embodiment 1 of the present invention.
  • FIG. 1B is a diagram showing the configuration of another example of an image reproduction system according to Embodiment 1 of the present invention.
  • FIG. 2A is a flowchart at the time of reproducing a plurality of image data according to Embodiment 1 of the present invention.
  • FIG. 2B is a flowchart of determining whether continuous imaging is performed according to Embodiment 1 of the present invention.
  • FIG. 3 is a flowchart of determining whether continuous imaging is performed according to Embodiment 1 of the present invention.
  • FIG. 4 is a flowchart when playing back a plurality of image data according to the second embodiment of the present invention.
  • FIG. 1A is a diagram showing a configuration of an image reproduction system according to Embodiment 1 of the present invention.
  • FIG. 1B is a diagram showing the configuration of another example of an image reproduction system according to Embodiment 1 of the
  • FIG. 5 is a diagram showing an example of screen display according to the third embodiment of the present invention.
  • FIG. 6 is a diagram for explaining an example of the screen display shown in FIG. 5 according to the third embodiment of the present invention.
  • FIG. 7 is a flowchart at the time of reproducing a plurality of image data according to Embodiment 3 of the present invention.
  • FIG. 8 is a block diagram showing the configuration of a conventional image reproduction system.
  • FIG. 9 is a flow chart when reproducing a plurality of image data according to the conventional image reproduction system.
  • FIG. 1A is a block diagram showing a configuration of an image reproduction system 100 according to Embodiment 1 of the present invention.
  • the image reproduction system 100 includes a photographing device 110, a recording medium 120, and an image reproduction device 130.
  • the imaging unit 111 receives optical information of a subject, converts the information into electrical information, and outputs the information as a plurality of image data.
  • the photographing unit 111 may be a lens that is a component of the DSC, an imaging device such as a CCD, an encoder of a JPEG (Joint Photographic Experts Group), or the like.
  • the metadata generation unit 112 generates and outputs metadata (additional information) of the photographed picture.
  • the metadata may be an attribute or a state of the photographing apparatus 110, a photographing condition of the photographing unit 111, or the like. That is, the metadata indicates, for example, the maker of the photographing apparatus 110, model or model number, serial number, brightness at the time of photographing, aperture value, shutter speed, photographing mode, photographing date and time, photographing location, GPS (Global Position information of Positioning System), etc. may be used.
  • the metadata addition unit 113 combines the metadata output from the metadata generation unit 112 with the image data as additional information.
  • the EXIF (Exchangeable Image File Format) standard has been proposed as an example of a format for adding metadata to JPEG still images. Therefore, the metadata addition unit 113 may be an encoder of EXIF data.
  • the writing unit 114 writes the plurality of image data output from the metadata adding unit 113 in the recording medium 120.
  • the recording medium 120 is a memory card
  • the writing unit 114 may be a reader / writer of the memory card.
  • the recording medium 120 is a bridge medium that stores a plurality of image data. That is, the recording medium 120 can be inserted into and connected to either the photographing device 110 or the image reproduction device 130. Therefore, by the recording medium 120, a plurality of image data can be shared between two devices.
  • the recording medium 120 may be, for example, a semiconductor memory card such as an SD memory card or a compact flash card, or an optical disc such as a removable hard disk drive (HDD), a solid state drive (SSD), or a Blu-ray Disc.
  • the image reproduction device 130 includes an operation input unit 131, a reading unit 132, a metadata separation unit 133, a reproduction control unit 134, a reproduction unit 135, and a presentation unit 136.
  • the operation input unit 131 is a device that receives an operation request for the image reproduction device 130 from the user.
  • the operation input unit 131 may be a switch attached to the main body of the operation input unit 131, a remote controller and its receiving unit, a pointing device, a microphone and a voice recognition device.
  • a function such as reproduction of an image is called.
  • the reading unit 132 reads a plurality of image data from the recording medium 120 and outputs a plurality of image data.
  • the recording medium 120 is a memory card
  • the reading unit 132 may be a reader / writer of the memory card.
  • the reproduction unit 135 decodes the plurality of image data output from the reading unit 132 and outputs graphic data.
  • the reproduction unit 135 may be a JPEG decoder.
  • the reproduction unit 135 also has a decryption function. Further, the reproduction unit 135 is controlled by the reproduction control unit 134.
  • the presentation unit 136 as a display unit visually converts the graphic data output from the reproduction unit 135 into an image and displays the image.
  • the presentation unit 136 may be a display device such as a liquid crystal display (LCD) or a plasma display panel (PDP). That is, the presentation unit 136 displays a plurality of decoded image data.
  • LCD liquid crystal display
  • PDP plasma display panel
  • a metadata separation unit 133 as an additional information reading unit separates and outputs metadata (additional information) added to a plurality of image data by the metadata addition unit 113 of the imaging unit 111.
  • the metadata separation unit 133 may output date and time when a plurality of image data are read from the recording medium 120 and an identification ID of the recording medium 120 itself as metadata.
  • the metadata separation unit 133 may be a decoder of the EXIF format.
  • the reproduction control unit 134 interprets the metadata output from the metadata separation unit 133, and controls display intervals of a plurality of image data displayed by the reproduction unit 135, selection of a plurality of image data, display positions, and the like. That is, the reproduction control unit 134 determines whether the plurality of image data read based on the additional information is the continuously photographed image data, and sequentially displays the plurality of image data read by the reading unit 132 based on the determination result. Control the display interval when Also, the reproduction unit 135 decodes the plurality of image data read by the reading unit 132 based on the display interval. Details of the operation of the reproduction control unit 134 will be described later using a flowchart.
  • FIG. 1A shows an example in which the presentation unit 136 as the display unit is integrally formed with the reading unit 132, the metadata separation unit 133 as the additional information reading unit, the reproduction control unit 134, and the reproduction unit 135.
  • FIG. 1B is a diagram showing a configuration of another example image reproduction system 100A according to Embodiment 1 of the present invention.
  • the presentation unit 136B as a display unit is formed separately from the reading unit 132, the metadata separation unit 133 as an additional information reading unit, the reproduction control unit 134, and the reproduction unit 135.
  • not only wired communication but also wireless communication may be used to transmit and receive signals between the playback unit 135 and the presentation unit 136B as a display unit. When wireless is used, it is convenient because the user can easily handle the display portion.
  • FIG. 2A is a flowchart 210 at the time of reproducing a plurality of image data according to Embodiment 1 of the present invention. That is, FIG. 2A shows a flowchart 210 representing the entire process when the image reproduction device 130 reproduces a plurality of image data.
  • the reading unit 132 sequentially reads a plurality of image data (photographs) stored in the recording medium 120 one by one (step S211).
  • the order of reading a plurality of image data may be the order of characters in directory names and file names, or the order of shooting date and time.
  • the reading unit 132 confirms whether all the photos have already been read (step S212). If all the photos have already been read ("Yes" in step S212), it is determined that the reproduction of all the images has ended, and the reproduction processing of the plurality of images is ended.
  • the reproduction unit 135 decodes the image data output from the reading unit 132. Then, by displaying on the presenting unit 136, a single picture is presented to the user (step S213).
  • the reading unit 132 successively reads a plurality of image data (a plurality of photographs) stored in the recording medium 120 one by one (step S214).
  • the order of reading the image data may be the order of characters in directory names and file names, or the order of shooting date and time.
  • step S215 If all the photos have already been read ("Yes” in step S215), the reading unit 132 concludes that the reproduction of all the images has ended, and ends the reproduction processing of the plurality of images.
  • step S215 If all the photos have not been read (“No” in step S215), the reproduction control unit 134 determines whether or not the plurality of image data read in step S214 have been continuously photographed (step S216).
  • the predetermined time for displaying the picture is the first display interval.
  • the first display interval may be, for example, about 0.2 seconds to 1 second.
  • step S216 determines whether the shooting is not continuous shooting, it is false in the determination of continuous shooting in step S217 ("No" in step S217)
  • the process proceeds to step S218, and the predetermined time is set as the second display interval, for example Perform processing to wait for several seconds to elapse.
  • the predetermined time may be, for example, 2 seconds or more and 10 seconds or less. Furthermore, preferably, for example, 2 seconds or more and 3 seconds or less may be sufficient. That is, the first display interval is set shorter than the second display interval.
  • step S216 determination as to continuous shooting performed in step S216 will be described in detail using FIG. 2B.
  • FIG. 2B is a flowchart 216 for determining whether continuous shooting is performed.
  • the reproduction control unit 134 acquires, from the metadata separation unit 133, the metadata of the image data selected in step S211 and the metadata of the image data selected in step S214, and the shooting date and time of the image data selected in step S211
  • the shooting date and time of the image data selected in S214 is compared, and if the difference is smaller than a predetermined value (first threshold), for example, 1 second ("Yes" in step S221), the process proceeds to step S222. Then, it is determined that the proposition of continuous shooting is true (step S222), and the process ends.
  • first threshold for example, 1 second
  • step S211 the shooting date and time of the image data selected in step S211 is compared with the shooting date and time of the image data selected in step S214, and the difference is a predetermined value (first threshold), for example, 1 second or more (step The process proceeds to step S223). Then, it is determined that the proposition of continuous shooting is false (step S223), and the process ends.
  • first threshold for example, 1 second or more
  • the reproduction control unit 134 of the image reproduction apparatus determines that the difference between the shooting date and time of one set of continuous image data among the plurality of read image data is less than the first threshold. In this case, it is determined that one continuous set of image data is a plurality of continuously captured image data. Then, the display interval is controlled to the first display interval.
  • the reproduction control unit continuously shoots the continuous set of image data. It determines that it is not multiple image data. Then, the display interval is controlled to the second display interval.
  • a plurality of image data obtained by continuously photographing a plurality of image data in which the continuous photographing and the photographing one by one are mixed are automatically performed. Recognize. And it does not take waiting time only when it recognizes. Therefore, image display can be advanced one after another. For this reason, there is no need to wait more than necessary for similar images captured by continuous shooting. In addition, at the same time, valuable images taken one by one can give the user enough time to watch well.
  • image data captured by the image capturing apparatus 110 conforming to the industry standard EXIF standard can be processed, it is very versatile.
  • FIG. 3 is a flowchart 310, 320 for determining whether it is another continuous imaging according to Embodiment 1 of the present invention.
  • the flowchart 310 for determining whether continuous shooting is a flowchart that can cope with the case where the same scene is shot by a plurality of camera individuals.
  • the reproduction control unit 134 confirms whether the two pieces of image data to be compared are photographed by the same camera individual based on the metadata acquired from the metadata separation unit 133 (step S311). If it is photographed by the same camera individual ("Yes" in step S311), the process proceeds to step S221.
  • the shooting date and time of the image data selected in step S211 is compared with the shooting date and time of the image data selected in step S214, and when the difference is smaller than a predetermined value (first threshold), for example 1 second (step S221) "Yes"), it progresses to step S222. Then, it is determined that the proposition of continuous shooting is true (step S222), and the process ends.
  • first threshold for example 1 second
  • step S3111 when the two pieces of image data to be compared are not captured by the same camera individual (“No” in step S311), the process proceeds to step S223. Then, it is determined that the proposition of continuous shooting is false (step S223), and the process ends.
  • the maker, model, model number, and serial number stored in the metadata of each image data may be compared.
  • GPS data representing a photographed place may be used.
  • differences in format of the image data itself may be recognized.
  • the image reproduction device 130 has a storage unit for storing a plurality of image data.
  • a plurality of image data read from the recording medium 120 are stored in the storage unit.
  • the storage unit has a large capacity such as an HDD, it can read a plurality of image data from the plurality of recording media 120 any number of times and use it as a library.
  • the image reproduction device 130 may store the date and time when a plurality of image data are read from the storage medium 120, and if the date and time are different, it may be determined that they are different camera individuals.
  • a flowchart 320 for determining whether continuous shooting is a flowchart for determining that continuous shooting is to be performed if the actual subject is largely changed even though the shooting operation is continuously performed as the user's shooting operation.
  • the reproduction control unit 134 compares the shooting date and time of the image data selected in step S211 with the shooting date and time of the image data selected in step S214 based on the metadata acquired from the metadata separation unit 133, and the difference is predetermined.
  • First threshold of, for example, smaller than 1 second ("Yes" in step S221)
  • the process proceeds to step S321.
  • first threshold for example, 1 second or more
  • the process proceeds to step S223.
  • step S321 it is determined whether the similarity between the previous and subsequent images is high (step S321).
  • the determination of image similarity is performed using an existing image recognition method. If it is determined that the similarity is high ("Yes” in step S321), the process proceeds to step S222. Then, it is determined that the proposition of continuous shooting is true (step S222), and the process ends. If it is determined that the similarity is low ("No" in step S321), the process proceeds to step S223. Then, it is determined that the proposition of continuous shooting is false (step S223), and the process ends.
  • step S217 If the similarity of the images is low, it is determined as false in step S223, so it is determined in step S217 that continuous imaging is not performed. Therefore, even if images are taken within a predetermined time, if the images to be taken are substantially different as the content of the images, it is possible to make the reproduction wait until the predetermined time elapses (second display interval). . That is, by waiting for the passage of a predetermined time where the images differ in content, it is possible to prevent a user from miss an important image as a result of misunderstanding that the content is the same and neglecting attention.
  • the display interval is controlled so as to change the waiting time when the plurality of image data is reproduced between the case where the plurality of image data is continuously photographed and the case where the plurality of image data are not continuously photographed.
  • control of a display interval in the case where the photographing time of a plurality of continuous images is extremely small, such as a moving image will be described.
  • FIG. 4 is a flowchart 410 when playing back a plurality of image data according to Embodiment 2 of the present invention.
  • the flowchart shown in FIG. 4 differs from the flowchart shown in FIG. 2A only in step S411. Therefore, only the steps related to step S411 will be described, and the other descriptions will be omitted.
  • step S217 if the result of the determination as to whether or not continuous shooting is true ("Yes" in step S217), the process proceeds to step S411. That is, as described above, the reproduction control unit 134 acquires, from the metadata separation unit 133, the metadata of the image data selected in step S211 and the metadata of the image data selected in step S214, and selects the metadata in step S211. The shooting date and time of the image data is compared with the shooting date and time of the image data selected in step S214, and if the difference is smaller than a predetermined value (first threshold), for example, one second, the process proceeds to step S411.
  • first threshold for example, one second
  • step S411 it is determined whether the value of the difference between the shooting date and time of the image read in step S214 is extremely smaller than the shooting date and time of the image read in step S211 and displayed in step S213.
  • the process proceeds to step S213 for displaying an image.
  • the process proceeds to step S214 without displaying the image.
  • the threshold of the determination is relatively short with respect to the time required to display a photograph in step S213, and may be a numerical value such as 1/10 second (second threshold), for example.
  • second threshold 1/10 second
  • step S411 it is possible to thin and display the image by skipping the step of displaying the picture until the interval becomes approximately the first threshold.
  • the reproduction control unit 134 of the image reproduction apparatus performs continuous 1 when the difference between the shooting date and time of one set of continuous image data among the plurality of read image data is less than the first threshold. It is determined that the set of image data is a plurality of continuously captured image data. Then, the display interval is controlled to the first display interval. If the difference between the shooting date and time of one continuous set of image data among the plurality of read image data is less than the second threshold, the subsequent image data of the read continuous one set of image data is Do not display on the display. That is, the reproduction unit 135 does not decode the subsequent image data.
  • the reproduction control unit 134 causes the second difference between the shooting date and time of the image data to be decoded next to the image data to be decoded and the image data to be decoded to be smaller than the first threshold. If it is less than the threshold value, the reproduction unit does not decode the plurality of pieces of image data until the difference between the shooting date and time becomes equal to or more than the second threshold value.
  • the image reproduction apparatus and the image reproduction method according to the present embodiment as in the case of a moving image, when the photographing time of a plurality of continuous images is extremely small, the image data is processed until the interval becomes equal to or more than the second threshold By skipping the displaying step, it is possible to thin out and display the image. As a result, even if continuous shooting is performed at a very high speed, the user continues to look at an image that looks more like it needs, because the image is decimated and presented so as to conform to the still image decoding capability of the image playback device. It does not.
  • the first and second embodiments have described the image reproduction apparatus and the image reproduction method in which the display interval is controlled by the photographing time of a plurality of continuous image data.
  • an image reproducing apparatus and an image that control a display interval based on an angle at which a plurality of continuous image data are captured, or depending on whether a plurality of continuous image data are captured by the same imaging device. Describe the reproduction method.
  • FIG. 5 is a diagram showing an example of screen display according to the third embodiment of the present invention.
  • the entire display image 400 has a main display area 401 for displaying main image data, and a sub display area for displaying one or more subsidiary image data.
  • the sub display area indicates the sub display area 402 and the sub display area 403.
  • the sub display area 403 may be similar to the sub display area 402. Only when there is a plurality of image data to be displayed in the sub display area 402 and the sub display area 403, display windows of the sub display area 402 and the sub display area 403 appear.
  • FIG. 6 is a diagram for explaining an example of the screen display shown in FIG. 5 according to the third embodiment of the present invention. Taking a soccer game as an example, it is assumed that a plurality of images are photographed using three photographing devices 451, 452 and 453. Three photographing devices 451, 452 and 453 are arranged outside the field 450 of the soccer game. Also, it is assumed that a competitor 455 just kicks the soccer ball 454.
  • a graphic display 460 shows the relationship between the shooting center positions of the respective cameras and the zoom size of the cameras using a circle 461, a circle 462, and a circle 463.
  • the center of each circle indicates the center position of shooting by the camera
  • the size of each circle indicates the relative size of the zoom of the camera.
  • a circle 461 corresponds to the imaging device 451
  • a circle 462 corresponds to the imaging device 452
  • a circle 463 corresponds to the imaging device 453.
  • the graphic display 470 indicates the relationship between the shooting center positions of the respective cameras and the size of the angle of view of the cameras using the graphic 471, the graphic 472 and the graphic 473.
  • the center of the black circle of each figure indicates the center position of shooting of each camera, and the size of the angle of two feet on the compass of each figure is relative to the size of the angle of view of the camera. Is shown.
  • the figure 471 corresponds to the photographing device 451
  • the circle 472 corresponds to the photographing device 452
  • the circle 473 corresponds to the photographing device 453.
  • the photographing device 451, the photographing device 452, and the photographing device 453 are disposed, and setting the angle of view and the angle, respectively, provides the example of the screen display shown in FIG.
  • FIG. 7 is a flowchart 510 when reproducing a plurality of image data according to Embodiment 3 of the present invention.
  • a plurality of photographing devices 451, photographing devices 452, photographing devices 453, and one image reproduction device 130 may be connected simultaneously.
  • a plurality of recording media 120 may be inserted into the reading unit 132 simultaneously.
  • the reading unit 132 reads in advance all image data of one photographing device in order, and the image data of all the photographing devices 451, 452 and 453 are previously read into the image reproduction device 130. You may start
  • a specific network communication technology may be P2P communication technology, communication via a server, or file sharing technology. That is, the present invention can be realized regardless of the specific network communication technology.
  • the images may be limited to only the images of the same subject.
  • it may be used whether or not the GPS information included in the image has a close value.
  • the user may be made to select which one of the plurality of subjects is displayed by displaying a selection menu.
  • the flowchart shown in FIG. 7 is different from the flowchart shown in FIG. 4 in the processing after step S217. Therefore, only the steps after step S217 will be described, and the other descriptions will be omitted.
  • step S217 if the result of the determination as to whether or not continuous shooting is false ("No" in step S217), the process proceeds to step S511.
  • step S 511 only the main display area 401 is displayed, the sub display area which is a window other than the main display area 401 is closed, and the main display area 401 is selected. Then, after a predetermined time (second display interval), in step S213, the image data displayed in the main display area 401 is changed to display the subsequent image data.
  • step S217 if the result of the determination as to whether or not continuous shooting is true ("Yes" in step S217), the process proceeds to step S512. Then, for example, when a plurality of image data captured continuously is displayed in the main display area 401, the sub display area 402, and the sub display area 403, a plurality of images determined to be captured continuously in step S217. When it is determined that the shooting angle is different in any of the plurality of image data displayed in the main display area 401 and the sub display area 402 in which the data is currently displayed, and the sub display area 403 ("Yes" in step S512) The process proceeds to step S513. If one of the display areas is the same as the shooting angle ("No" in step S512), the process proceeds to step S514.
  • imaging device 451, the imaging device 452, and the imaging device 453 from which the image data is captured are the same individual.
  • image similarity may be determined by image recognition, and the direction in which the imaging device 451, imaging device 452, and imaging device 453 were directed at the time of imaging may be measured by an inclination sensor, geomagnetic sensor, angular velocity sensor, etc. May be stored as metadata, and determination may be made using this metadata.
  • step S513 a window of a new sub display area associated with the angle is opened.
  • step S512 it is determined in step S512 that there is no display area having the same shooting angle.
  • step S514 a display window with a matching angle is selected. Then, in step S213, the subsequent image data is displayed in place of the previous image data among the continuous set of image data displayed in the selected display window.
  • step S515 if there is an unnecessary window, it may be closed. If there is a display window for which the displayed image has not been updated for a certain period, the number, or the like, the display window is closed.
  • the display window to be closed is the main display area 401
  • the contents of the sub display area 402 or sub display area 403 are displayed on the main display area 401 and the sub display area 402 or sub display area 403 is displayed at the same time. You may close the window.
  • the display window has been described on the premise of the main display area 401 and the sub display area 402, or the sub display area 403, but the number of sub display areas is not limited to two, and may be more.
  • the display unit of the image reproduction apparatus includes a plurality of display areas for displaying a plurality of read image data.
  • the reproduction control unit further determines whether the shooting angles of the plurality of image data continuously shot are the same based on the additional information (metadata). Then, when the reproduction control unit 134 determines that the shooting angles are the same, the display area in which the previous image data is displayed among the continuous image data among the plurality of display areas is displayed before the previous one. Instead of the image data, display the subsequent image data. Further, when it is determined that the shooting angles are different, the reproduction control unit 134 causes the subsequent image data to be displayed in a display area different from the display area in which the previous image data is displayed among the plurality of display areas.
  • the image reproducing apparatus and the image reproducing method according to the present invention can recognize a plurality of continuously captured image data and present it to the user at an optimal display interval. It is useful as a search function etc.

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Abstract

An image playback device is provided with a read-in unit for reading in a plurality of image data; an additional information reading unit for reading additional information that has been added to the plurality of image data; a playback control unit for determining on the basis of the additional information whether or not the plurality of image data is consecutively captured image data and setting a display interval for when sequentially displaying the plurality of image data according to the determination result; a playback unit for decoding the plurality of image data on the basis of the display interval; and a display unit for displaying the decoded plurality of image data.

Description

画像再生装置及び画像再生方法Image reproduction apparatus and image reproduction method
　本発明はデジタルスチルカメラ（Ｄｉｇｉｔａｌ　Ｓｔｉｌｌ　Ｃａｍｅｒａ、以下、「ＤＳＣ」と略記する）などのカメラで撮影された複数の画像のスライドショー表示を行う装置及び方法に関する。 The present invention relates to an apparatus and method for performing slide show display of a plurality of images captured by a camera such as a digital still camera (hereinafter referred to as "DSC").
　スライドショー再生に適した撮影データの格納方法について、従来、以下に示す方法が開示されている。即ち、ＤＳＣをインターバル撮影モードにして撮影したときに、１回のインターバル撮影で撮影した一連の写真を、コンピュータ用のファイルシステム上で区別できるようにグループ化して格納する。グループ化する際に、撮影のインターバル間隔を示すデータも同時に格納する。そして、グループ化した情報を用いることで撮影したときと同じ再生速度で、スライドショー再生する（例えば、特許文献１参照）。 Conventionally, as a method of storing shooting data suitable for slide show reproduction, the following method is disclosed. That is, when shooting is performed with the DSC in the interval shooting mode, a series of photos taken in one interval shooting are grouped and stored so that they can be distinguished on the file system for the computer. At the time of grouping, data indicating an interval interval of imaging is also stored simultaneously. Then, the slide show is played back at the same playback speed as when shooting by using the grouped information (for example, see Patent Document 1).
　次に、従来の一般的なスライドショー再生（複数画像の再生）について、図を用いて説明する。図８は、従来の画像再生システム１６００の構成を示すブロック図である。画像再生システム１６００は、撮影装置１１１０と、記録メディア１１２０と、画像再生装置１７３０とから構成されている。 Next, conventional general slide show reproduction (reproduction of a plurality of images) will be described with reference to the drawings. FIG. 8 is a block diagram showing the configuration of a conventional image reproduction system 1600. As shown in FIG. The image reproduction system 1600 includes an imaging device 1110, a recording medium 1120, and an image reproduction device 1730.
　撮影装置１１１０は、ＤＳＣであって、撮影部１１１１と、メタデータ生成部１１１２と、メタデータ付加部１１１３と、書込部１１１４とから構成されている。 The photographing device 1110 is a DSC, and includes a photographing unit 1111, a metadata generation unit 1112, a metadata addition unit 1113, and a writing unit 1114.
　撮影部１１１１は、被写体の光学的な情報を受像し、電気的な情報に変換して複数の画像データとして出力する。撮影部１１１１は、ＤＳＣの構成要素である、レンズと、ＣＣＤなどの撮像素子、ＪＰＥＧ（Ｊｏｉｎｔ　Ｐｈｏｔｏｇｒａｐｈｉｃ　Ｅｘｐｅｒｔｓ　Ｇｒｏｕｐ）のエンコーダなどでよい。 The imaging unit 1111 receives optical information of a subject, converts the information into electrical information, and outputs the information as a plurality of image data. The imaging unit 1111 may be a lens, an imaging device such as a CCD, a JPEG (Joint Photographic Experts Group) encoder, or the like, which is a component of the DSC.
　メタデータ生成部１１１２は、撮影した写真のメタデータ（付加情報）を生成して出力する。メタデータは、撮影装置１１１０の属性や状態、撮影部１１１１の撮影条件などでよい。すなわち、メタデータは、例えば、撮影装置１１１０のメーカ、機種や型番、製造番号、撮影の際の明るさ、絞りの値、シャッター速度、撮影モード、撮影した日時、撮影した場所を表すＧＰＳ（Ｇｌｏｂａｌ　Ｐｏｓｉｔｉｏｎｉｎｇ　Ｓｙｓｔｅｍ）の位置情報、などでよい。 The metadata generation unit 1112 generates and outputs metadata (additional information) of the photographed picture. The metadata may be an attribute or state of the photographing apparatus 1110, a photographing condition of the photographing unit 1111, or the like. That is, the metadata indicates, for example, the maker of the photographing apparatus 1110, model or model number, serial number, brightness at photographing, aperture value, shutter speed, photographing mode, photographing date and time, photographing location, GPS (Global Position information of Positioning System), etc. may be used.
　メタデータ付加部１１１３は、メタデータ生成部１１１２の出力するメタデータを付加情報として複数の画像データにそれぞれ合成する。ＪＰＥＧ静止画にメタデータを付与するフォーマットの一例として、ＥＸＩＦ（Ｅｘｃｈａｎｇｅａｂｌｅ　Ｉｍａｇｅ　Ｆｉｌｅ　Ｆｏｒｍａｔ）規格などが提唱されている。ＥＸＩＦ規格は、業界標準の規格であり、非常に多くのＤＳＣに採用されている。メタデータ付加部１１１３はＥＸＩＦデータのエンコーダでよい。 The metadata addition unit 1113 combines the metadata output from the metadata generation unit 1112 with a plurality of image data as additional information. The EXIF (Exchangeable Image File Format) standard has been proposed as an example of a format for adding metadata to JPEG still images. The EXIF standard is an industry standard standard and is adopted by a large number of DSCs. The metadata addition unit 1113 may be an encoder of EXIF data.
　書込部１１１４は、メタデータ付加部１１１３の出力する複数の画像データを記録メディア１１２０に書き込む。書込部１１１４は、記録メディア１１２０がメモリカードである場合には、メモリカードのリーダ／ライターでよい。 The writing unit 1114 writes the plurality of image data output from the metadata adding unit 1113 in the recording medium 1120. When the recording medium 1120 is a memory card, the writing unit 1114 may be a reader / writer of the memory card.
　記録メディア１１２０は、複数の画像データを格納するブリッジ　メディアである。すなわち、記録メディア１１２０は、撮影装置１１１０と画像再生装置１７３０のどちらにも挿入し、接続することができる。したがって、記録メディア１１２０によって、複数の画像データを２つの装置間で共有することができる。記録メディア１１２０は、例えば、ＳＤメモリカードやコンパクト　フラッシュ　カードなどの半導体メモリカードや、リムーバブルなＨＤＤ（Ｈａｒｄ　Ｄｉｓｋ　Ｄｒｉｖｅ）やＳＳＤ（Ｓｏｌｉｄ　Ｓｔａｔｅ　Ｄｒｉｖｅ）、または、Ｂｌｕ－ｒａｙ　Ｄｉｓｃなどの光ディスクなどでよい。 The recording medium 1120 is a bridge medium that stores a plurality of image data. That is, the recording medium 1120 can be inserted into and connected to either the photographing device 1110 or the image reproduction device 1730. Therefore, by the recording medium 1120, a plurality of image data can be shared between two devices. The recording medium 1120 may be, for example, a semiconductor memory card such as an SD memory card or a compact flash card, an optical disk such as a removable HDD (Hard Disk Drive), an SSD (Solid State Drive), or a Blu-ray Disc.
　画像再生装置１７３０は、操作入力部１１３１と、読込部１１３２と、再生部１６３５と、提示部１１３６とから構成されている。 The image reproduction device 1730 includes an operation input unit 1131, a reading unit 1132, a reproduction unit 1635, and a presentation unit 1136.
　操作入力部１１３１は、ユーザから画像再生装置１７３０に対する操作要求を受け付けるデバイスである。操作入力部１１３１は、操作入力部１１３１本体に付けられたスイッチや、リモコンとその受信部、ポインティング　デバイス、マイクと音声認識装置などでよい。画像再生装置１７３０では、操作入力部１１３１からの要求に従って、複数の画像の再生などの機能が呼び出される。 The operation input unit 1131 is a device that receives an operation request for the image reproduction device 1730 from the user. The operation input unit 1131 may be a switch attached to the main body of the operation input unit 1131, a remote control and its receiving unit, a pointing device, a microphone and a voice recognition device. In the image reproduction device 1730, in accordance with the request from the operation input unit 1131, a function such as reproduction of a plurality of images is called.
　読込部１１３２は、記録メディア１１２０から複数の画像データを読み込み、複数の画像データを出力する。読込部１１３２は、記録メディア１１２０がメモリカードである場合には、メモリカードのリーダ／ライターでよい。 The reading unit 1132 reads a plurality of image data from the recording medium 1120 and outputs a plurality of image data. When the recording medium 1120 is a memory card, the reading unit 1132 may be a reader / writer of the memory card.
　再生部１６３５は、読込部１１３２の出力する複数の画像データをデコードして、グラフィックデータを出力する。複数の画像データがＪＰＥＧデータの場合には、再生部１６３５はＪＰＥＧデコーダでよい。あるいは複数の画像データが何らかの暗号化を伴っている場合には、暗号解読の機能も再生部１６３５は具備する。 The reproduction unit 1635 decodes the plurality of image data output from the reading unit 1132 and outputs graphic data. When the plurality of image data are JPEG data, the reproduction unit 1635 may be a JPEG decoder. Alternatively, in the case where a plurality of image data is accompanied by some kind of encryption, the reproduction unit 1635 also has a decryption function.
　提示部１１３６は、再生部１６３５の出力するグラフィックデータをユーザが視覚で知覚可能な映像にして表示する。提示部１１３６は、ＬＣＤ（Ｌｉｑｕｉｄ　Ｃｒｙｓｔａｌ　Ｄｉｓｐｌａｙ）やＰＤＰ（Ｐｌａｓｍａ　Ｄｉｓｐｌａｙ　Ｐａｎｅｌ）などのディスプレイ　デバイスでよい。 The presentation unit 1136 displays the graphic data output from the reproduction unit 1635 as a video that can be perceived by the user visually. The presentation unit 1136 may be a display device such as a liquid crystal display (LCD) or a plasma display panel (PDP).
　次に画像再生装置１７３０の動作を、フローチャートを用いて詳細に説明する。図９は、従来の画像再生システム１６００に係る複数画像の再生を行う際のフローチャート１７１０である。 Next, the operation of the image reproduction device 1730 will be described in detail using a flowchart. FIG. 9 is a flowchart 1710 when reproducing a plurality of images according to the conventional image reproduction system 1600.
　まず、読込部１１３２が、記録メディア１１２０に格納されている複数の画像データ（複数の写真）を１枚ずつ順に読み込む（ステップＳ１２１１）。複数の画像データを読み込む順番としてはディレクトリ名やファイル名の文字列順や、撮影された日時順などで良い。 First, the reading unit 1132 sequentially reads a plurality of image data (a plurality of photographs) stored in the recording medium 1120 one by one (step S1211). The order of reading a plurality of image data may be the order of characters in directory names and file names, or the order of shooting date and time.
　次に、読込部１１３２が、全ての写真が既に読込済であるか確認する（ステップＳ１２１２）。全ての写真が既に読込済である場合（ステップＳ１２１２の「Ｙｅｓ」）、全ての画像の再生が終了したとして複数画像の再生処理を終了する。 Next, the reading unit 1132 confirms whether all the photos have already been read (step S1212). If all the photos have already been read ("Yes" in step S1212), it is determined that the reproduction of all the images has ended, and the reproduction processing of the plurality of images is ended.
　全ての写真が読込済でない場合（ステップＳ１２１２の「Ｎｏ」）、再生部１６３５が、読込部１１３２の出力する画像データをデコードする。そして、提示部１１３６がデコードされた画像データを表示することで、１枚の写真をユーザに提示する（ステップＳ１２１３）。 If all the photos have not been read (“No” in step S 1212), the reproduction unit 1635 decodes the image data output from the reading unit 1132. Then, the presentation unit 1136 presents the decoded image data to present one picture to the user (step S1213).
　次に、所定時間（第二の表示間隔）の経過を待って（ステップＳ１２１８）、ステップＳ１２１１に戻る。所定時間は、例えば数秒などでよい。すなわち、予め画像再生装置１６００で設定された時間の経過を待つ。ステップＳ１２１３により写真が１枚ずつ順に提示部１１３６に表示されるが、例えば、もしステップＳ１２１８で全く待たない場合、ユーザが提示部１１３６に表示された写真を充分認識する前に次の写真に進んでしまう可能性がある。このため、ステップＳ１２１８で所定時間の経過を待つことで、個々の写真に撮影された内容をユーザが認識して楽しむ時間的な猶予をつくり出す。 Next, after elapse of a predetermined time (second display interval) (step S1218), the process returns to step S1211. The predetermined time may be, for example, several seconds. That is, it waits for the time set in advance by the image reproduction device 1600 to elapse. Photos are displayed one by one in the presentation unit 1136 in step S 1213, but if, for example, the user does not wait at all in step S 1218, the user proceeds to the next photo before sufficiently recognizing the photos displayed in the presentation unit 1136. There is a possibility of Therefore, by waiting for a predetermined time to elapse in step S1218, the user recognizes a content taken in each photo and creates a temporal grace to enjoy.
　ところが、従来の画像再生装置及び画像再生方法は以下の課題があった。 However, the conventional image reproduction apparatus and image reproduction method have the following problems.
　（課題１）撮影装置１１１０は、１枚ずつ撮影するモードと、１秒あたり数枚以上撮影する連続撮影モードとを切り換えて撮影する機能を搭載している場合がある。撮影した複数の写真を全て等しい時間間隔で再生した場合には、
　（１）時間間隔が短い場合には、連続撮影モードで撮影した膨大な数の画像の中に、集合写真など１枚だけしかない画像が一瞬しか表示されず見落としてしまっていた。 (Problem 1) The imaging device 1110 may be equipped with a function of imaging by switching between a mode in which images are captured one by one and a continuous imaging mode in which images are captured several times or more per second. When you play back multiple photos taken at equal time intervals,
(1) In the case where the time interval is short, an image having only one sheet such as a group photograph is displayed for a moment only and is overlooked among a huge number of images taken in the continuous shooting mode.
　（２）逆に、時間間隔が長い場合には、連続撮影された似た画像を、ユーザに興味が無い場合であっても、長時間見続ける必要があった。また、ユーザは次の画像を前後に進める操作を行ったり、時間間隔を切り換える操作を行うことも考えられるが、その操作自体が煩雑であった。 (2) Conversely, when the time interval is long, it is necessary to keep looking at similar images captured continuously even if the user is not interested. In addition, it is conceivable that the user performs an operation to advance the next image forward or backward or performs an operation to switch the time interval, but the operation itself is complicated.
　（課題２）静止画の撮影枚数が、例えば１秒あたり１００枚以上といった超高速の連写機能が実用化されている。このように、再生部１６３５のデコード時間に対し、非常に短い間隔で撮影された場合、被写体によっては、再生時にユーザはほとんど変化の無い画像を我慢して長時間見続けることを強要される場合があった。 (Problem 2) A high-speed continuous shooting function in which the number of still images taken is, for example, 100 or more per second has been put to practical use. As described above, when photographing is performed at an extremely short interval with respect to the decoding time of the reproduction unit 1635, depending on the subject, the user is forced to endure an image with little change at the time of reproduction and forced to look for a long time was there.
　例えば、民生用のＤＳＣでも１秒間に数１００フレーム（枚）以上撮影可能なものがある。一方、画像再生装置１７３０での写真表示は１秒に数枚か１枚に数秒間必要である。このため、仮に１秒間に１００枚撮影し、１秒に１枚表示する場合、わずか１秒間の出来事を再生するのに２分間近く必要となり、ユーザを必要以上に拘束してしまうことで利便性が損なわれていた。 For example, some DSCs for consumer use can capture several hundred frames (pieces) or more per second. On the other hand, it is necessary to display a picture on the image reproduction apparatus 1730 for several seconds or one second. For this reason, if it is assumed that 100 images are taken in one second and one image is displayed in one second, it takes approximately two minutes to reproduce events of only one second, and the user is constrained more than necessary, which is convenient. Was damaged.
　（課題３）複数のカメラで同じシーン（例えば、運動会のゴール　シーンや、結婚式でブーケを投げるシーン）を、ほぼ同時並行で連続撮影した場合、撮影しているアングルや連続撮影開始のタイミング、連続撮影の撮影間隔の違いにより、再生された内容をユーザが見たときに、時間的な順序関係が理解できなくなってしまうことがあった。 (Problem 3) When shooting the same scene (for example, a goal scene of an athletic meet or a scene to throw a bouquet at a wedding) with a plurality of cameras almost simultaneously in parallel, the shooting angle and the timing of starting continuous shooting, Due to the difference in the shooting interval of continuous shooting, when the user views the reproduced content, the temporal order relationship may not be understood.
特開平４－３３５７８４号公報Unexamined-Japanese-Patent No. 4-335784
　本発明の画像再生装置は、読込部と付加情報読取部と再生制御部と再生部と表示部とを備える。読込部は、複数の画像データを読み込む。付加情報読取部は、複数の画像データに付加されている付加情報を読み取る。再生制御部は、付加情報に基づいて複数の画像データが連続撮影された画像データであるか否かを判定し、判定結果に応じて複数の画像データを順次表示する際の表示間隔を設定する。再生部は、表示間隔に基づいて複数の画像データをデコードする。表示部は、デコードされた複数の画像データを表示する。 The image reproduction apparatus of the present invention includes a reading unit, an additional information reading unit, a reproduction control unit, a reproduction unit, and a display unit. The reading unit reads a plurality of image data. The additional information reading unit reads additional information added to the plurality of image data. The reproduction control unit determines, based on the additional information, whether or not the plurality of image data are continuously photographed image data, and sets a display interval when sequentially displaying the plurality of image data according to the determination result. . The reproduction unit decodes a plurality of image data based on the display interval. The display unit displays a plurality of decoded image data.
　再生制御部は、複数の画像データの撮影日時の差が第一の閾値以上である場合、複数の画像データは連続撮影された複数の画像データでないと判定し、表示間隔を第二の表示間隔に設定して再生部に複数の画像データのデコードを行なわせる。また、再生制御部は、複数の画像データの撮影日時の差が第一の閾値未満である場合、複数の画像データは連続撮影された複数の画像データであると判定し、表示間隔を第一の表示間隔に設定して再生部に複数の画像データのデコードを行なわせる。また、再生制御部は、デコードを行った画像データとデコードを行った画像データの次にデコードするべき画像データとの撮影日時の差が第一の閾値よりも小さい第二の閾値未満である場合、撮影日時の差が第二の閾値以上になるまで再生部に複数の画像データのデコードを行なわせない。 The reproduction control unit determines that the plurality of image data is not the plurality of continuously captured image data when the difference between the plurality of image data shooting dates and times is equal to or more than the first threshold, and the display interval is the second display interval And the reproduction unit to decode a plurality of image data. In addition, when the difference between the shooting dates and times of the plurality of image data is less than the first threshold, the reproduction control unit determines that the plurality of image data are the plurality of continuously captured image data, and the display interval is first The reproduction unit is set to the display interval of and the plurality of image data are decoded. In addition, the reproduction control unit determines that the difference between the shooting date and time between the decoded image data and the image data to be decoded next to the decoded image data is less than the second threshold, which is smaller than the first threshold. The playback unit does not decode the plurality of image data until the difference between the shooting date and time becomes equal to or greater than the second threshold.
　このような構成により、ユーザが連続撮影と１枚ずつの撮影とを混在して再生を行っても、連続撮影した写真であるか、ないかを自動で認識する。そして、連続撮影した写真や集合写真などの１枚だけしかない写真をそれぞれに最適な時間間隔で提示する。また、複数の画像の再生時に、ユーザが何ら操作を行うことなく、自動で行われるのでユーザにとって煩雑ではない。 With such a configuration, even if the user performs reproduction while mixing continuous shooting and shooting one by one, it is automatically recognized whether or not the photograph is continuous shooting. Then, present only one photo, such as a series of photographs and a group photo, at the optimal time intervals. In addition, it is not bothersome for the user because the reproduction is automatically performed without the user performing any operation at the time of reproduction of a plurality of images.
　また、本発明の画像再生方法は、複数の画像データを読み込むステップと、複数の画像データに付加されている付加情報を読み取るステップと、付加情報に基づいて複数の画像データが連続撮影された画像データであるか否かを判定し、判定結果に応じて複数の画像データを順次表示する際の表示間隔を設定するステップと、表示間隔に基づいて複数の画像データをデコードするステップと、デコードされた複数の画像データを表示するステップと、を有する。 In the image reproducing method according to the present invention, the steps of reading a plurality of image data, reading additional information added to the plurality of image data, and an image obtained by continuously photographing the plurality of image data based on the additional information Determining whether or not the data is data, and setting a display interval when displaying a plurality of image data sequentially according to the determination result; decoding a plurality of image data based on the display interval; And displaying the plurality of pieces of image data.
　表示間隔を設定するステップは、複数の画像データの撮影日時の差が第一の閾値以上である場合、複数の画像データは連続撮影された複数の画像データでないと判定し、表示間隔を第二の表示間隔に設定してデコードするステップに複数の画像データのデコードを行なわせる。 The step of setting the display interval determines that the plurality of image data is not the plurality of continuously captured image data if the difference between the shooting date and time of the plurality of image data is the first threshold or more, and the display interval is the second The plurality of image data are decoded in the step of setting the display interval of and decoding.
　また、表示間隔を設定するステップは、複数の画像データの撮影日時の差が第一の閾値未満である場合、複数の画像データは連続撮影された複数の画像データであると判定し、表示間隔を第一の表示間隔に設定してデコードするステップに複数の画像データのデコードを行なわせる。 Further, the step of setting the display interval determines that the plurality of image data are a plurality of continuously captured image data when the difference between the shooting date and time of the plurality of image data is less than the first threshold, and the display interval Is set to the first display interval and the decoding step is performed to decode a plurality of image data.
　また、表示間隔を設定するステップは、デコードを行った画像データとデコードを行った画像データの次にデコードするべき画像データとの撮影日時の差が第一の閾値よりも小さい第二の閾値未満である場合、撮影日時の差が第二の閾値以上になるまでデコードするステップに複数の画像データのデコードを行なわせない。 In the step of setting the display interval, the difference between the shooting date and time between the decoded image data and the image data to be decoded next to the decoded image data is less than a second threshold smaller than the first threshold. In this case, decoding of a plurality of image data is not performed in the decoding step until the difference between the shooting date and time becomes equal to or greater than the second threshold.
図１Ａは、本発明の実施の形態１に係る画像再生システムの構成を示す図である。FIG. 1A is a diagram showing a configuration of an image reproduction system according to Embodiment 1 of the present invention. 図１Ｂは、本発明の実施の形態１に係る他の例の画像再生システムの構成を示す図である。FIG. 1B is a diagram showing the configuration of another example of an image reproduction system according to Embodiment 1 of the present invention. 図２Ａは、本発明の実施の形態１に係る複数の画像データの再生を行う際のフローチャートである。FIG. 2A is a flowchart at the time of reproducing a plurality of image data according to Embodiment 1 of the present invention. 図２Ｂは、本発明の実施の形態１に係る連続撮影かを判定するフローチャートである。FIG. 2B is a flowchart of determining whether continuous imaging is performed according to Embodiment 1 of the present invention. 図３は、本発明の実施の形態１に係る連続撮影かを判定するフローチャートである。FIG. 3 is a flowchart of determining whether continuous imaging is performed according to Embodiment 1 of the present invention. 図４は、本発明の実施の形態２に係る複数の画像データの再生を行う際のフローチャートである。FIG. 4 is a flowchart when playing back a plurality of image data according to the second embodiment of the present invention. 図５は、本発明の実施の形態３に係る画面表示の例を示す図である。FIG. 5 is a diagram showing an example of screen display according to the third embodiment of the present invention. 図６は、本発明の実施の形態３に係る図５で示した画面表示の例を説明するための図である。FIG. 6 is a diagram for explaining an example of the screen display shown in FIG. 5 according to the third embodiment of the present invention. 図７は、本発明の実施の形態３に係る複数の画像データの再生を行う際のフローチャートである。FIG. 7 is a flowchart at the time of reproducing a plurality of image data according to Embodiment 3 of the present invention. 図８は、従来の画像再生システムの構成を示すブロック図である。FIG. 8 is a block diagram showing the configuration of a conventional image reproduction system. 図９は、従来の画像再生システムに係る複数の画像データの再生を行う際のフローチャートである。FIG. 9 is a flow chart when reproducing a plurality of image data according to the conventional image reproduction system.
　（実施の形態１）
　以下本発明を実施するための最良の形態について、図面を参照しながら説明する。なお、以下では、図中の同一の構成要素には同一の符号を付与するものとし、説明の一部または全てを省略することがある。図１Ａは、本発明の実施の形態１に係る画像再生システム１００の構成を示すブロック図である。画像再生システム１００は、撮影装置１１０と、記録メディア１２０と、画像再生装置１３０とを有する。 Embodiment 1
Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. In the following, the same reference numerals are given to the same components in the drawings, and part or all of the description may be omitted. FIG. 1A is a block diagram showing a configuration of an image reproduction system 100 according to Embodiment 1 of the present invention. The image reproduction system 100 includes a photographing device 110, a recording medium 120, and an image reproduction device 130.
　まず、撮影装置１１０の構成と動作について、図を用いて説明する。撮影部１１１は、被写体の光学的な情報を受像し、電気的な情報に変換して複数の画像データとして出力する。撮影部１１１は、ＤＳＣの構成要素である、レンズと、ＣＣＤなどの撮像素子、ＪＰＥＧ（Ｊｏｉｎｔ　Ｐｈｏｔｏｇｒａｐｈｉｃ　Ｅｘｐｅｒｔｓ　Ｇｒｏｕｐ）のエンコーダなどでよい。 First, the configuration and operation of the imaging device 110 will be described using the drawings. The imaging unit 111 receives optical information of a subject, converts the information into electrical information, and outputs the information as a plurality of image data. The photographing unit 111 may be a lens that is a component of the DSC, an imaging device such as a CCD, an encoder of a JPEG (Joint Photographic Experts Group), or the like.
　メタデータ生成部１１２は、撮影した写真のメタデータ（付加情報）を生成して出力する。メタデータは、撮影装置１１０の属性や状態、撮影部１１１の撮影条件などでよい。すなわち、メタデータは、例えば、撮影装置１１０のメーカ、機種や型番、製造番号、撮影の際の明るさ、絞りの値、シャッター速度、撮影モード、撮影した日時、撮影した場所を表すＧＰＳ（Ｇｌｏｂａｌ　Ｐｏｓｉｔｉｏｎｉｎｇ　Ｓｙｓｔｅｍ）の位置情報、などでよい。 The metadata generation unit 112 generates and outputs metadata (additional information) of the photographed picture. The metadata may be an attribute or a state of the photographing apparatus 110, a photographing condition of the photographing unit 111, or the like. That is, the metadata indicates, for example, the maker of the photographing apparatus 110, model or model number, serial number, brightness at the time of photographing, aperture value, shutter speed, photographing mode, photographing date and time, photographing location, GPS (Global Position information of Positioning System), etc. may be used.
　メタデータ付加部１１３は、メタデータ生成部１１２の出力するメタデータを付加情報として画像データにそれぞれ合成する。ＪＰＥＧ静止画にメタデータを付与するフォーマットの一例として、ＥＸＩＦ（Ｅｘｃｈａｎｇｅａｂｌｅ　Ｉｍａｇｅ　Ｆｉｌｅ　Ｆｏｒｍａｔ）規格などが提唱されている。したがって、メタデータ付加部１１３は、ＥＸＩＦデータのエンコーダでよい。 The metadata addition unit 113 combines the metadata output from the metadata generation unit 112 with the image data as additional information. The EXIF (Exchangeable Image File Format) standard has been proposed as an example of a format for adding metadata to JPEG still images. Therefore, the metadata addition unit 113 may be an encoder of EXIF data.
　書込部１１４は、メタデータ付加部１１３の出力する複数の画像データを記録メディア１２０に書き込む。書込部１１４は、記録メディア１２０がメモリカードである場合には、メモリカードのリーダ／ライターでよい。 The writing unit 114 writes the plurality of image data output from the metadata adding unit 113 in the recording medium 120. When the recording medium 120 is a memory card, the writing unit 114 may be a reader / writer of the memory card.
　記録メディア１２０は、複数の画像データを格納するブリッジ　メディアである。すなわち、記録メディア１２０は、撮影装置１１０と画像再生装置１３０のどちらにも挿入し、接続することができる。したがって、記録メディア１２０によって、複数の画像データを２つの装置間で共有することができる。記録メディア１２０は、例えば、ＳＤメモリカードやコンパクト　フラッシュ　カードなどの半導体メモリカードや、リムーバブルなＨＤＤ（Ｈａｒｄ　Ｄｉｓｋ　Ｄｒｉｖｅ）やＳＳＤ（Ｓｏｌｉｄ　Ｓｔａｔｅ　Ｄｒｉｖｅ）、または、Ｂｌｕ－ｒａｙ　Ｄｉｓｃなどの光ディスクなどでよい。 The recording medium 120 is a bridge medium that stores a plurality of image data. That is, the recording medium 120 can be inserted into and connected to either the photographing device 110 or the image reproduction device 130. Therefore, by the recording medium 120, a plurality of image data can be shared between two devices. The recording medium 120 may be, for example, a semiconductor memory card such as an SD memory card or a compact flash card, or an optical disc such as a removable hard disk drive (HDD), a solid state drive (SSD), or a Blu-ray Disc.
　次に、画像再生装置１３０の構成と動作について、図を用いて説明する。画像再生装置１３０は、操作入力部１３１と、読込部１３２と、メタデータ分離部１３３と、再生制御部１３４と、再生部１３５と、提示部１３６とを有する。 Next, the configuration and operation of the image reproduction device 130 will be described using the drawings. The image reproduction device 130 includes an operation input unit 131, a reading unit 132, a metadata separation unit 133, a reproduction control unit 134, a reproduction unit 135, and a presentation unit 136.
　操作入力部１３１は、ユーザから画像再生装置１３０に対する操作要求を受け付けるデバイスである。操作入力部１３１は、操作入力部１３１本体に付けられたスイッチや、リモコンとその受信部、ポインティング　デバイス、マイクと音声認識装置などでよい。画像再生装置１３０では、操作入力部１３１からの要求に従って、画像の再生などの機能が呼び出される。 The operation input unit 131 is a device that receives an operation request for the image reproduction device 130 from the user. The operation input unit 131 may be a switch attached to the main body of the operation input unit 131, a remote controller and its receiving unit, a pointing device, a microphone and a voice recognition device. In the image reproduction device 130, in accordance with a request from the operation input unit 131, a function such as reproduction of an image is called.
　読込部１３２は、記録メディア１２０から複数の画像データを読み込み、複数の画像データを出力する。読込部１３２は、記録メディア１２０がメモリカードである場合には、メモリカードのリーダ／ライターでよい。 The reading unit 132 reads a plurality of image data from the recording medium 120 and outputs a plurality of image data. When the recording medium 120 is a memory card, the reading unit 132 may be a reader / writer of the memory card.
　再生部１３５は、読込部１３２の出力する複数の画像データをデコードして、グラフィックデータを出力する。複数の画像データがＪＰＥＧデータの場合には、再生部１３５はＪＰＥＧデコーダでよい。あるいは複数の画像データが何らかの暗号化を伴っている場合には、暗号解読の機能も再生部１３５は具備する。また、再生部１３５は、再生制御部１３４に制御される。 The reproduction unit 135 decodes the plurality of image data output from the reading unit 132 and outputs graphic data. When the plurality of image data are JPEG data, the reproduction unit 135 may be a JPEG decoder. Alternatively, in the case where a plurality of image data is accompanied by some kind of encryption, the reproduction unit 135 also has a decryption function. Further, the reproduction unit 135 is controlled by the reproduction control unit 134.
　表示部としての提示部１３６は、再生部１３５の出力するグラフィックデータをユーザが視覚で映像に変換して表示する。提示部１３６は、ＬＣＤ（Ｌｉｑｕｉｄ　Ｃｒｙｓｔａｌ　Ｄｉｓｐｌａｙ）やＰＤＰ（Ｐｌａｓｍａ　Ｄｉｓｐｌａｙ　Ｐａｎｅｌ）などのディスプレイ　デバイスでよい。すなわち、提示部１３６は、デコードされた複数の画像データを表示する。 The presentation unit 136 as a display unit visually converts the graphic data output from the reproduction unit 135 into an image and displays the image. The presentation unit 136 may be a display device such as a liquid crystal display (LCD) or a plasma display panel (PDP). That is, the presentation unit 136 displays a plurality of decoded image data.
　付加情報読取部としてのメタデータ分離部１３３は、撮影部１１１のメタデータ付加部１１３で複数の画像データに付加されたメタデータ（付加情報）を分離して出力する。メタデータ分離部１３３は、記録メディア１２０から複数の画像データを読み込んだ日時や、記録メディア１２０自体の識別ＩＤもメタデータとして出力してもよい。例えば、メタデータの格納形式が、ＥＸＩＦ規格に準拠している場合には、メタデータ分離部１３３はＥＸＩＦフォーマットのデコーダでよい。 A metadata separation unit 133 as an additional information reading unit separates and outputs metadata (additional information) added to a plurality of image data by the metadata addition unit 113 of the imaging unit 111. The metadata separation unit 133 may output date and time when a plurality of image data are read from the recording medium 120 and an identification ID of the recording medium 120 itself as metadata. For example, when the storage format of metadata conforms to the EXIF standard, the metadata separation unit 133 may be a decoder of the EXIF format.
　再生制御部１３４は、メタデータ分離部１３３の出力するメタデータを解釈し、再生部１３５で表示される複数の画像データの表示間隔、複数の画像データの選択や表示位置などを制御する。すなわち、再生制御部１３４は、付加情報に基づき読込まれた複数の画像データが連続撮影された画像データかを判定し、その判定結果に基づき読込部１３２に読み込まれた複数の画像データを順次表示する際の表示間隔を制御する。また、再生部１３５は、表示間隔に基づき、読込部１３２に読み込まれた複数の画像データをデコードする。再生制御部１３４の動作の詳細については、フローチャートを用い後述する。 The reproduction control unit 134 interprets the metadata output from the metadata separation unit 133, and controls display intervals of a plurality of image data displayed by the reproduction unit 135, selection of a plurality of image data, display positions, and the like. That is, the reproduction control unit 134 determines whether the plurality of image data read based on the additional information is the continuously photographed image data, and sequentially displays the plurality of image data read by the reading unit 132 based on the determination result. Control the display interval when Also, the reproduction unit 135 decodes the plurality of image data read by the reading unit 132 based on the display interval. Details of the operation of the reproduction control unit 134 will be described later using a flowchart.
　なお、図１Ａでは、表示部としての提示部１３６は、読込部１３２、付加情報読取部としてのメタデータ分離部１３３、再生制御部１３４及び再生部１３５と一体に形成した例を示した。図１Ｂは、本発明の実施の形態１に係る他の例の画像再生システム１００Ａの構成を示す図である。図１Ｂに示すように表示部としての提示部１３６Ｂは、読込部１３２、付加情報読取部としてのメタデータ分離部１３３、再生制御部１３４及び再生部１３５と別体に形成している。このような構成の場合、再生部１３５と表示部としての提示部１３６Ｂとの信号の送受には、有線のみならず、無線を用いてもよい。無線を用いた場合、ユーザが表示部を自由に扱いやすいので便利である。 Note that FIG. 1A shows an example in which the presentation unit 136 as the display unit is integrally formed with the reading unit 132, the metadata separation unit 133 as the additional information reading unit, the reproduction control unit 134, and the reproduction unit 135. FIG. 1B is a diagram showing a configuration of another example image reproduction system 100A according to Embodiment 1 of the present invention. As shown in FIG. 1B, the presentation unit 136B as a display unit is formed separately from the reading unit 132, the metadata separation unit 133 as an additional information reading unit, the reproduction control unit 134, and the reproduction unit 135. In such a configuration, not only wired communication but also wireless communication may be used to transmit and receive signals between the playback unit 135 and the presentation unit 136B as a display unit. When wireless is used, it is convenient because the user can easily handle the display portion.
　図２Ａは、本発明の実施の形態１に係る複数の画像データの再生を行う際のフローチャート２１０である。すなわち、図２Ａは、画像再生装置１３０が、複数の画像データの再生を行う際の処理全体を表すフローチャート２１０を示している。 FIG. 2A is a flowchart 210 at the time of reproducing a plurality of image data according to Embodiment 1 of the present invention. That is, FIG. 2A shows a flowchart 210 representing the entire process when the image reproduction device 130 reproduces a plurality of image data.
　まず、読込部１３２が、記録メディア１２０に格納されている複数の画像データ（写真）を１枚ずつ順に読み込む（ステップＳ２１１）。複数の画像データを読み込む順番としてはディレクトリ名やファイル名の文字列順や、撮影された日時順などで良い。 First, the reading unit 132 sequentially reads a plurality of image data (photographs) stored in the recording medium 120 one by one (step S211). The order of reading a plurality of image data may be the order of characters in directory names and file names, or the order of shooting date and time.
　次に、読込部１３２が、全ての写真が既に読込済であるか確認する（ステップＳ２１２）。全ての写真が既に読込済である場合（ステップＳ２１２の「Ｙｅｓ」）、全ての画像の再生が終了したとして複数画像の再生処理を終了する。 Next, the reading unit 132 confirms whether all the photos have already been read (step S212). If all the photos have already been read ("Yes" in step S212), it is determined that the reproduction of all the images has ended, and the reproduction processing of the plurality of images is ended.
　全ての写真が読込済でない場合（ステップＳ２１２の「Ｎｏ」）、再生部１３５が、読込部１３２の出力する画像データをデコードする。そして、提示部１３６に表示することで、１枚の写真をユーザに提示する（ステップＳ２１３）。 If all the photos have not been read ("No" in step S212), the reproduction unit 135 decodes the image data output from the reading unit 132. Then, by displaying on the presenting unit 136, a single picture is presented to the user (step S213).
　次に、読込部１３２が、記録メディア１２０に格納されている複数の画像データ（複数の写真）を引き続き１枚ずつ順に読み込む（ステップＳ２１４）。画像データを読み込む順番としてはディレクトリ名やファイル名の文字列順や、撮影された日時順などでよい。 Next, the reading unit 132 successively reads a plurality of image data (a plurality of photographs) stored in the recording medium 120 one by one (step S214). The order of reading the image data may be the order of characters in directory names and file names, or the order of shooting date and time.
　読込部１３２が、全ての写真が既に読込済である場合（ステップＳ２１５の「Ｙｅｓ」）、全ての画像の再生が終了したとして複数画像の再生処理を終了する。 If all the photos have already been read ("Yes" in step S215), the reading unit 132 concludes that the reproduction of all the images has ended, and ends the reproduction processing of the plurality of images.
　全ての写真が読込済でない場合（ステップＳ２１５の「Ｎｏ」）、再生制御部１３４はステップＳ２１４で読み込んだ複数の画像データが、連続撮影されたか否かを判定する（ステップＳ２１６）。 If all the photos have not been read (“No” in step S215), the reproduction control unit 134 determines whether or not the plurality of image data read in step S214 have been continuously photographed (step S216).
　ステップＳ２１６で連続撮影と判定された場合、ステップＳ２１７の連続撮影かどうかの判定で真となり（ステップＳ２１７の「Ｙｅｓ」）、ステップＳ２１３に戻る。この場合、写真を表示する所定時間は第一の表示間隔となる。第一の表示間隔は、例えば、０．２秒から１秒程度でよい。 If it is determined in step S216 that the shooting is continuous shooting, it becomes true in the determination of whether continuous shooting in step S217 ("Yes" in step S217), and the process returns to step S213. In this case, the predetermined time for displaying the picture is the first display interval. The first display interval may be, for example, about 0.2 seconds to 1 second.
　一方、ステップＳ２１６で連続撮影でない判定された場合、ステップＳ２１７の連続撮影かどうかの判定で偽となり（ステップＳ２１７の「Ｎｏ」）、ステップＳ２１８に進み、所定時間を第二の表示間隔とし、例えば数秒経過するのを待つ処理を行う。ここで、所定時間は、例えば２秒以上、１０秒以下でよい。さらに、好ましくは、例えば２秒以上、３秒以下でよい。すなわち、第一の表示間隔は、第二の表示間隔よりも短く設定する。 On the other hand, if it is determined in step S216 that the shooting is not continuous shooting, it is false in the determination of continuous shooting in step S217 ("No" in step S217), the process proceeds to step S218, and the predetermined time is set as the second display interval, for example Perform processing to wait for several seconds to elapse. Here, the predetermined time may be, for example, 2 seconds or more and 10 seconds or less. Furthermore, preferably, for example, 2 seconds or more and 3 seconds or less may be sufficient. That is, the first display interval is set shorter than the second display interval.
　ここで、ステップＳ２１６で行った、連続撮影かの判定について、図２Ｂを用いて詳細に説明する。 Here, the determination as to continuous shooting performed in step S216 will be described in detail using FIG. 2B.
　図２Ｂは、連続撮影かを判定するフローチャート２１６である。 FIG. 2B is a flowchart 216 for determining whether continuous shooting is performed.
　再生制御部１３４は、メタデータ分離部１３３からステップＳ２１１で選択した画像データのメタデータとステップＳ２１４で選択した画像データのメタデータを取得し、ステップＳ２１１で選択した画像データの撮影日時と、ステップＳ２１４で選択した画像データの撮影日時とを比較し、その差が所定の値（第一の閾値）、例えば１秒より小さい場合（ステップＳ２２１の「Ｙｅｓ」）、ステップＳ２２２に進む。そして、連続撮影かの命題に対して真と判定して（ステップＳ２２２）、処理を終了する。 The reproduction control unit 134 acquires, from the metadata separation unit 133, the metadata of the image data selected in step S211 and the metadata of the image data selected in step S214, and the shooting date and time of the image data selected in step S211 The shooting date and time of the image data selected in S214 is compared, and if the difference is smaller than a predetermined value (first threshold), for example, 1 second ("Yes" in step S221), the process proceeds to step S222. Then, it is determined that the proposition of continuous shooting is true (step S222), and the process ends.
　一方、ステップＳ２１１で選択した画像データの撮影日時と、ステップＳ２１４で選択した画像データの撮影日時とを比較し、その差が所定の値（第一の閾値）、例えば１秒以上の場合（ステップＳ２２１の「Ｎｏ」）、ステップＳ２２３に進む。そして、連続撮影かの命題に対して偽と判定して（ステップＳ２２３）、処理を終了する。 On the other hand, the shooting date and time of the image data selected in step S211 is compared with the shooting date and time of the image data selected in step S214, and the difference is a predetermined value (first threshold), for example, 1 second or more (step The process proceeds to step S223). Then, it is determined that the proposition of continuous shooting is false (step S223), and the process ends.
　上記したように、本実施の形態の係る画像再生装置の再生制御部１３４は、読み込まれた複数の画像データのうち連続する１組の画像データの撮影日時の差が第一の閾値未満である場合、連続する１組の画像データは連続撮影された複数の画像データであると判定する。そして、表示間隔を第一の表示間隔に制御する。 As described above, the reproduction control unit 134 of the image reproduction apparatus according to the present embodiment determines that the difference between the shooting date and time of one set of continuous image data among the plurality of read image data is less than the first threshold. In this case, it is determined that one continuous set of image data is a plurality of continuously captured image data. Then, the display interval is controlled to the first display interval.
　また、再生制御部は、読み込まれた複数の画像データのうち連続する１組の画像データの撮影日時の差が第一の閾値以上である場合、連続する１組の画像データは連続撮影された複数の画像データではないと判定する。そして、表示間隔を第二の表示間隔に制御する。 In addition, when the difference between the shooting date and time of one set of continuous image data among the plurality of read image data is equal to or greater than the first threshold, the reproduction control unit continuously shoots the continuous set of image data. It determines that it is not multiple image data. Then, the display interval is controlled to the second display interval.
　上述のように、本実施の形態に係る画像再生装置及び画像再生方法によれば、連続撮影と１枚ずつ撮影とが混在した複数の画像データに対して、連続撮影した複数の画像データを自動で認識する。そして、認識した場合にのみ待ち時間を取らない。したがって、次々に画像表示を進めていくことが出来る。このため、連続撮影による撮影されたよく似た画像を必要以上待つことがない。また、同時に、１枚ずつ撮影した貴重な画像は、しっかり鑑賞できるだけの時間を、ユーザに与えることができる。 As described above, according to the image reproduction apparatus and the image reproduction method according to the present embodiment, a plurality of image data obtained by continuously photographing a plurality of image data in which the continuous photographing and the photographing one by one are mixed are automatically performed. Recognize. And it does not take waiting time only when it recognizes. Therefore, image display can be advanced one after another. For this reason, there is no need to wait more than necessary for similar images captured by continuous shooting. In addition, at the same time, valuable images taken one by one can give the user enough time to watch well.
　また、業界標準のＥＸＩＦ規格に準拠した撮影装置１１０で撮影した画像データであれば、処理可能であるため、非常に汎用性が高い。 Further, since image data captured by the image capturing apparatus 110 conforming to the industry standard EXIF standard can be processed, it is very versatile.
　ここで、更に、別の連続撮影の判定の条件について図３を用いて説明する。図３は、本発明の実施の形態１に係る他の連続撮影かを判定するフローチャート３１０、３２０である。 Here, another condition for determination of continuous shooting will be described with reference to FIG. FIG. 3 is a flowchart 310, 320 for determining whether it is another continuous imaging according to Embodiment 1 of the present invention.
　連続撮影かを判定するフローチャート３１０は、複数のカメラ個体で同じシーンを撮影した場合にも対応できるフローチャートである。 The flowchart 310 for determining whether continuous shooting is a flowchart that can cope with the case where the same scene is shot by a plurality of camera individuals.
　再生制御部１３４は、比較する２個の画像データが、同一のカメラ個体で撮影されたかをメタデータ分離部１３３から取得したメタデータに基づいて確認する（ステップＳ３１１）。同一のカメラ個体で撮影された場合（ステップＳ３１１の「Ｙｅｓ」）、ステップＳ２２１へ進む。ステップＳ２１１で選択した画像データの撮影日時と、ステップＳ２１４で選択した画像データの撮影日時とを比較し、その差が所定の値（第一の閾値）、例えば１秒より小さい場合（ステップＳ２２１の「Ｙｅｓ」）、ステップＳ２２２に進む。そして、連続撮影かの命題に対して真と判定して（ステップＳ２２２）、処理を終了する。 The reproduction control unit 134 confirms whether the two pieces of image data to be compared are photographed by the same camera individual based on the metadata acquired from the metadata separation unit 133 (step S311). If it is photographed by the same camera individual ("Yes" in step S311), the process proceeds to step S221. The shooting date and time of the image data selected in step S211 is compared with the shooting date and time of the image data selected in step S214, and when the difference is smaller than a predetermined value (first threshold), for example 1 second (step S221) "Yes"), it progresses to step S222. Then, it is determined that the proposition of continuous shooting is true (step S222), and the process ends.
　一方、比較する２個の画像データが、同一のカメラ個体で撮影されていない場合（ステップＳ３１１の「Ｎｏ」）、ステップＳ２２３に進む。そして、連続撮影かの命題に対して偽と判定して（ステップＳ２２３）、処理を終了する。 On the other hand, when the two pieces of image data to be compared are not captured by the same camera individual (“No” in step S311), the process proceeds to step S223. Then, it is determined that the proposition of continuous shooting is false (step S223), and the process ends.
　同一のカメラ個体で有るかを判定する方法としては、各画像データのメタデータに格納された、メーカ、機種、型番、製造番号を比較すればよい。あるいは、撮影した場所を表すＧＰＳデータを用いても良い。あるいは、画像データ自体のフォーマットの差異を認識してもよい。 As a method of determining whether the same camera individual is present, the maker, model, model number, and serial number stored in the metadata of each image data may be compared. Alternatively, GPS data representing a photographed place may be used. Alternatively, differences in format of the image data itself may be recognized.
　別の実現方法として、画像再生装置１３０が、複数の画像データを蓄積する蓄積部を具備した場合が考えられる。この場合、記録メディア１２０から読み込んだ複数の画像データを蓄積部に格納していく。蓄積部はＨＤＤなど容量が大きいものであれば、複数個の記録メディア１２０から何回でも複数の画像データを読み込んでライブラリとして使うことが出来る。こうした状況下では、画像再生装置１３０が、記憶メディア１２０から複数の画像データを読み込んだ日時を記憶しておき、その日時が異なる場合には異なるカメラ個体であると判定してもよい。 As another realization method, it is conceivable that the image reproduction device 130 has a storage unit for storing a plurality of image data. In this case, a plurality of image data read from the recording medium 120 are stored in the storage unit. If the storage unit has a large capacity such as an HDD, it can read a plurality of image data from the plurality of recording media 120 any number of times and use it as a library. Under such circumstances, the image reproduction device 130 may store the date and time when a plurality of image data are read from the storage medium 120, and if the date and time are different, it may be determined that they are different camera individuals.
　連続撮影かを判定するフローチャート３２０は、ユーザの撮影操作としては連続して撮影していても、実際の被写体が大きく変わっている場合には、別々の連続撮影であると判定させるフローチャートである。 A flowchart 320 for determining whether continuous shooting is a flowchart for determining that continuous shooting is to be performed if the actual subject is largely changed even though the shooting operation is continuously performed as the user's shooting operation.
　再生制御部１３４は、メタデータ分離部１３３から取得したメタデータに基づいてステップＳ２１１で選択した画像データの撮影日時と、ステップＳ２１４で選択した画像データの撮影日時とを比較し、その差が所定の値（第一の閾値）、例えば１秒より小さい場合（ステップＳ２２１の「Ｙｅｓ」）、ステップＳ３２１に進む。一方、撮影日時の差が所定の値（第一の閾値）、例えば１秒以上の場合（ステップＳ２１１の「Ｎｏ」）、ステップＳ２２３に進む。そして、連続撮影かの命題に対して偽と判定して（ステップＳ２２３）、処理を終了する。 The reproduction control unit 134 compares the shooting date and time of the image data selected in step S211 with the shooting date and time of the image data selected in step S214 based on the metadata acquired from the metadata separation unit 133, and the difference is predetermined. (First threshold) of, for example, smaller than 1 second ("Yes" in step S221), the process proceeds to step S321. On the other hand, when the difference between the shooting date and time is a predetermined value (first threshold), for example, 1 second or more (“No” in step S211), the process proceeds to step S223. Then, it is determined that the proposition of continuous shooting is false (step S223), and the process ends.
　次に、前後の画像の類似性が高いか否かを判定する（ステップＳ３２１）。画像の類似性の判断は、既存の画像認識手法を利用して行う。類似性が高いと判定された場合（ステップＳ３２１の「Ｙｅｓ」）、ステップＳ２２２へ進む。そして、連続撮影かの命題に対して真と判定して（ステップＳ２２２）、処理を終了する。類似性が低いと判定された場合（ステップＳ３２１の「Ｎｏ」）、Ｓ２２３に進む。そして、連続撮影かの命題に対して偽と判定して（ステップＳ２２３）、処理を終了する。 Next, it is determined whether the similarity between the previous and subsequent images is high (step S321). The determination of image similarity is performed using an existing image recognition method. If it is determined that the similarity is high ("Yes" in step S321), the process proceeds to step S222. Then, it is determined that the proposition of continuous shooting is true (step S222), and the process ends. If it is determined that the similarity is low ("No" in step S321), the process proceeds to step S223. Then, it is determined that the proposition of continuous shooting is false (step S223), and the process ends.
　画像の類似性が低い場合には、ステップＳ２２３で偽と判定されるため、ステップＳ２１７で連続撮影でないと判定される。このため一定時間内に撮影されていても、撮影される画像が、画像の内容として実質異なる場合には、所定時間の経過（第二の表示間隔）を待たせて再生することが可能となる。即ち、画像が内容的に異なるところで所定時間の経過を待つことで、ユーザが同じ内容であると誤解して注視を怠った結果、重要な画像を見逃すことを防止できる。 If the similarity of the images is low, it is determined as false in step S223, so it is determined in step S217 that continuous imaging is not performed. Therefore, even if images are taken within a predetermined time, if the images to be taken are substantially different as the content of the images, it is possible to make the reproduction wait until the predetermined time elapses (second display interval). . That is, by waiting for the passage of a predetermined time where the images differ in content, it is possible to prevent a user from miss an important image as a result of misunderstanding that the content is the same and neglecting attention.
　（実施の形態２）
　実施の形態１においては、複数の画像データを連続撮影した場合と連続撮影していない場合とで、複数の画像データの再生を行う際の待ち時間を変えるように表示間隔を制御した。実施の形態２においては、例えば、動画のように、連続する複数の画像の撮影時間がきわめて小さい場合の表示間隔を制御について述べる。 Second Embodiment
In the first embodiment, the display interval is controlled so as to change the waiting time when the plurality of image data is reproduced between the case where the plurality of image data is continuously photographed and the case where the plurality of image data are not continuously photographed. In the second embodiment, control of a display interval in the case where the photographing time of a plurality of continuous images is extremely small, such as a moving image, will be described.
　図４は、本発明の実施の形態２に係る複数の画像データの再生を行う際のフローチャート４１０である。図４に示すフローチャートは、図２Ａに示したフローチャートとステップＳ４１１のみが異なる。したがって、ステップＳ４１１に関連するステップのみ説明し、他は説明を省略する。 FIG. 4 is a flowchart 410 when playing back a plurality of image data according to Embodiment 2 of the present invention. The flowchart shown in FIG. 4 differs from the flowchart shown in FIG. 2A only in step S411. Therefore, only the steps related to step S411 will be described, and the other descriptions will be omitted.
　ステップＳ２１７において、連続撮影かどうかの判定で真の場合（ステップＳ２１７の「Ｙｅｓ」）、ステップＳ４１１に進む。すなわち、既に述べたように、再生制御部１３４は、メタデータ分離部１３３からステップＳ２１１で選択した画像データのメタデータとステップＳ２１４で選択した画像データのメタデータを取得し、ステップＳ２１１で選択した画像データの撮影日時と、ステップＳ２１４で選択した画像データの撮影日時とを比較し、その差が所定の値（第一の閾値）、例えば１秒より小さい場合、ステップＳ４１１に進む。 In step S217, if the result of the determination as to whether or not continuous shooting is true ("Yes" in step S217), the process proceeds to step S411. That is, as described above, the reproduction control unit 134 acquires, from the metadata separation unit 133, the metadata of the image data selected in step S211 and the metadata of the image data selected in step S214, and selects the metadata in step S211. The shooting date and time of the image data is compared with the shooting date and time of the image data selected in step S214, and if the difference is smaller than a predetermined value (first threshold), for example, one second, the process proceeds to step S411.
　そして、ステップＳ４１１においては、ステップＳ２１１で読み込み、ステップＳ２１３で表示した画像の撮影日時に対して、ステップＳ２１４で読み込んだ画像の撮影日時の差の値が、極めて小さいか否かを判定する。そして、極めて小さいと判定されなかった場合（ステップＳ４１１の「Ｎｏ」）、画像を表示するステップＳ２１３に進む。一方、極めて小さいと判定された場合（ステップＳ４１１の「Ｙｅｓ」）、画像を表示せずにステップＳ２１４に進む。 Then, in step S411, it is determined whether the value of the difference between the shooting date and time of the image read in step S214 is extremely smaller than the shooting date and time of the image read in step S211 and displayed in step S213. When it is not determined to be extremely small ("No" in step S411), the process proceeds to step S213 for displaying an image. On the other hand, when it is determined that the size is extremely small ("Yes" in step S411), the process proceeds to step S214 without displaying the image.
　なお、上記処理において画像を表示はしていないがステップＳ２１４で既に読み込んだ画像の撮影日時と、次にステップＳ２１４で読み込んだ画像についても同様の処理を行う。 Although the image is not displayed in the above processing, the same processing is performed for the shooting date and time of the image already read in step S214 and the image read next in step S214.
　ここで、上記判定の閾値は、ステップＳ２１３で写真を表示するのに要する時間に対して、相対的に短い時間であり、例えば１／１０秒（第二の閾値）といった数値でよい。この理由は、複数の画像データは、所定時間に亘って記録された動画データであるとしているからである。 Here, the threshold of the determination is relatively short with respect to the time required to display a photograph in step S213, and may be a numerical value such as 1/10 second (second threshold), for example. The reason for this is that the plurality of image data are assumed to be moving image data recorded over a predetermined time.
　上記のステップＳ４１１を導入することで、およそ第一の閾値に近い間隔になるまで写真を表示するステップをスキップすることで、画像を間引いて表示することが可能となる。 By introducing the above step S411, it is possible to thin and display the image by skipping the step of displaying the picture until the interval becomes approximately the first threshold.
　本実施の形態の係る画像再生装置の再生制御部１３４は、読み込まれた複数の画像データのうち連続する１組の画像データの撮影日時の差が第一の閾値未満である場合、連続する１組の画像データは連続撮影された複数の画像データであると判定する。そして、表示間隔を第一の表示間隔に制御する。かつ、読み込まれた複数の画像データのうち連続する１組の画像データの撮影日時の差が第二の閾値未満である場合、読み込まれた連続する１組の画像データのうち後の画像データを表示部に表示させない。つまり、再生部１３５に後の画像データのデコードを行わせない。このようにして、再生制御部１３４は、デコードを行った画像データとデコードを行った画像データの次にデコードするべき画像データとの撮影日時の差が、第一の閾値よりも小さい第二の閾値未満である場合、撮影日時の差が第二の閾値以上になるまで再生部に複数の前記画像データのデコードを行なわせない。 The reproduction control unit 134 of the image reproduction apparatus according to the present embodiment performs continuous 1 when the difference between the shooting date and time of one set of continuous image data among the plurality of read image data is less than the first threshold. It is determined that the set of image data is a plurality of continuously captured image data. Then, the display interval is controlled to the first display interval. If the difference between the shooting date and time of one continuous set of image data among the plurality of read image data is less than the second threshold, the subsequent image data of the read continuous one set of image data is Do not display on the display. That is, the reproduction unit 135 does not decode the subsequent image data. In this manner, the reproduction control unit 134 causes the second difference between the shooting date and time of the image data to be decoded next to the image data to be decoded and the image data to be decoded to be smaller than the first threshold. If it is less than the threshold value, the reproduction unit does not decode the plurality of pieces of image data until the difference between the shooting date and time becomes equal to or more than the second threshold value.
　したがって、本実施の形態に係る画像再生装置及び画像再生方法によれば、動画のように、連続する複数の画像の撮影時間がきわめて小さい場合、第二の閾値以上の間隔になるまで画像データを表示するステップをスキップすることで、画像を間引いて表示することが可能となる。その結果、非常に高速に連写された場合でも、画像再生装置の静止画デコード能力に適合するように、画像を間引いて提示するため、ユーザが、必要以上に似た画像を見続けることにならない。 Therefore, according to the image reproduction apparatus and the image reproduction method according to the present embodiment, as in the case of a moving image, when the photographing time of a plurality of continuous images is extremely small, the image data is processed until the interval becomes equal to or more than the second threshold By skipping the displaying step, it is possible to thin out and display the image. As a result, even if continuous shooting is performed at a very high speed, the user continues to look at an image that looks more like it needs, because the image is decimated and presented so as to conform to the still image decoding capability of the image playback device. It does not.
　（実施の形態３）
　実施の形態１、２においては、連続する複数の画像データの撮影時間によって、表示間隔を制御する画像再生装置及び画像再生方法について述べた。実施の形態３においては、連続する複数の画像データが撮影されたアングルに基づいて、あるいは、連続する複数の画像データが同じ撮影装置によって撮影されたかによって、表示間隔を制御する画像再生装置及び画像再生方法について述べる。 Third Embodiment
The first and second embodiments have described the image reproduction apparatus and the image reproduction method in which the display interval is controlled by the photographing time of a plurality of continuous image data. In the third embodiment, an image reproducing apparatus and an image that control a display interval based on an angle at which a plurality of continuous image data are captured, or depending on whether a plurality of continuous image data are captured by the same imaging device. Describe the reproduction method.
　図５は、本発明の実施の形態３に係る画面表示の例を示す図である。全体の表示イメージ４００には、主となる画像データを表示する主表示エリア４０１と、１つ又は複数の副次的な画像データを表示する副表示エリアとを有する。この例では副表示エリアは、副表示エリア４０２と副表示エリア４０３とを示している。副表示エリア４０２には、主表示エリア４０１とほぼ同時刻に、かつ主表示エリア４０１とは別の撮影アングルから連続撮影された複数の画像データを表示する。副表示エリア４０３も、副表示エリア４０２と同様でよい。副表示エリア４０２、副表示エリア４０３に表示すべき複数の画像データがある場合にだけ、副表示エリア４０２、副表示エリア４０３の表示ウィンドウが出現する。 FIG. 5 is a diagram showing an example of screen display according to the third embodiment of the present invention. The entire display image 400 has a main display area 401 for displaying main image data, and a sub display area for displaying one or more subsidiary image data. In this example, the sub display area indicates the sub display area 402 and the sub display area 403. In the sub display area 402, a plurality of image data continuously captured at almost the same time as the main display area 401 and at a shooting angle different from that of the main display area 401 is displayed. The sub display area 403 may be similar to the sub display area 402. Only when there is a plurality of image data to be displayed in the sub display area 402 and the sub display area 403, display windows of the sub display area 402 and the sub display area 403 appear.
　図６は、本発明の実施の形態３に係る図５で示した画面表示の例を説明するための図である。サッカー競技を例にして、３台の撮影装置４５１、撮影装置４５２、撮影装置４５３を用いて、複数画像を撮影していると想定している。サッカー競技のフィールド４５０の外側に３台の撮影装置４５１、撮影装置４５２、撮影装置４５３が配置されている。また、ある競技者４５５がまさにサッカーボール４５４を蹴る場面を想定している。 FIG. 6 is a diagram for explaining an example of the screen display shown in FIG. 5 according to the third embodiment of the present invention. Taking a soccer game as an example, it is assumed that a plurality of images are photographed using three photographing devices 451, 452 and 453. Three photographing devices 451, 452 and 453 are arranged outside the field 450 of the soccer game. Also, it is assumed that a competitor 455 just kicks the soccer ball 454.
　図形表示４６０は、円４６１、円４６２、円４６３を用いて、それぞれのカメラの撮影の中心位置の関係とカメラのズームの大きさとを示している。ここで、それぞれの円の中心は、カメラの撮影の中心位置を示し、それぞれの円の大きさは、カメラのズームの大きさをそれぞれ相対的に示している。なお、円４６１は、撮影装置４５１に対応し、円４６２は撮影装置４５２に対応し、円４６３は撮影装置４５３に対応する。 A graphic display 460 shows the relationship between the shooting center positions of the respective cameras and the zoom size of the cameras using a circle 461, a circle 462, and a circle 463. Here, the center of each circle indicates the center position of shooting by the camera, and the size of each circle indicates the relative size of the zoom of the camera. A circle 461 corresponds to the imaging device 451, a circle 462 corresponds to the imaging device 452, and a circle 463 corresponds to the imaging device 453.
　また、図形表示４７０は、図形４７１、図形４７２、図形４７３を用いて、それぞれのカメラの撮影の中心位置の関係とカメラの画角の大きさとを示している。ここで、それぞれの図形の黒丸の中心は、それぞれのカメラの撮影の中心位置を示し、それぞれの図形のコンパス上の２つの足の角度の大きさは、カメラの画角の大きさをそれぞれ相対的に示している。なお、図形４７１は、撮影装置４５１に対応し、円４７２は撮影装置４５２に対応し、円４７３は撮影装置４５３に対応する。 Further, the graphic display 470 indicates the relationship between the shooting center positions of the respective cameras and the size of the angle of view of the cameras using the graphic 471, the graphic 472 and the graphic 473. Here, the center of the black circle of each figure indicates the center position of shooting of each camera, and the size of the angle of two feet on the compass of each figure is relative to the size of the angle of view of the camera. Is shown. The figure 471 corresponds to the photographing device 451, the circle 472 corresponds to the photographing device 452, and the circle 473 corresponds to the photographing device 453.
　上記したように撮影装置４５１、撮影装置４５２、撮影装置４５３が配置され、それぞれ画角、アングルを設定することにより、図５で示した画面表示の例が得られるものである。 As described above, the photographing device 451, the photographing device 452, and the photographing device 453 are disposed, and setting the angle of view and the angle, respectively, provides the example of the screen display shown in FIG.
　次に、副表示エリア４０２、副表示エリア４０３の表示を制御する方法について、フローチャートを用いて説明する。 Next, a method of controlling the display of the sub display area 402 and the sub display area 403 will be described using a flowchart.
　図７は、本発明の実施の形態３に係る複数の画像データの再生を行う際のフローチャート５１０である。なお、複数の撮影装置４５１、撮影装置４５２、撮影装置４５３と、１個の画像再生装置１３０とが同時に接続されても良い。あるいは、複数枚の記録メディア１２０が同時に読込部１３２に挿入されても良い。あるいは、読込部１３２で１台の撮影装置ずつ順に全ての画像データを予め読込み、全ての撮影装置４５１、撮影装置４５２、撮影装置４５３の画像データを画像再生装置１３０に予め読み込んだ状態から本処理を開始してもよい。 FIG. 7 is a flowchart 510 when reproducing a plurality of image data according to Embodiment 3 of the present invention. A plurality of photographing devices 451, photographing devices 452, photographing devices 453, and one image reproduction device 130 may be connected simultaneously. Alternatively, a plurality of recording media 120 may be inserted into the reading unit 132 simultaneously. Alternatively, the reading unit 132 reads in advance all image data of one photographing device in order, and the image data of all the photographing devices 451, 452 and 453 are previously read into the image reproduction device 130. You may start
　なお、書込部１１４、記録メディア１２０、読込部１３２の代わりに、ネットワーク通信技術を用いて、撮影装置４５１、撮影装置４５２、撮影装置４５３と、画像再生装置１３０の間で複数の画像データを共有しても良い。具体的なネットワーク通信技術としては、Ｐ２Ｐの通信技術や、サーバを介した通信、あるいは、ファイル共有技術などでよい。即ち、本発明は具体的なネットワーク通信技術によらず実現可能である。 Note that instead of the writing unit 114, the recording medium 120, and the reading unit 132, a plurality of image data are captured between the imaging device 451, the imaging device 452, the imaging device 453, and the image reproduction device 130 using network communication technology. You may share it. A specific network communication technology may be P2P communication technology, communication via a server, or file sharing technology. That is, the present invention can be realized regardless of the specific network communication technology.
　なお、ほぼ同時刻であっても、撮影装置４５１、撮影装置４５２、撮影装置４５３毎に明らかに異なる被写体を撮影している場合には、同一の被写体の画像のみに限定しても良い。上記の被写体を限定する方法としては、画像に含まれるＧＰＳ情報が近い値であるか否かを用いてもよい。また、複数の被写体が検出された場合には、ユーザに複数の被写体のうちどれを表示するか、選択メニューを表示することでユーザに選択させてもよい。 In the case where the photographing device 451, the photographing device 452, and the photographing device 453 clearly photograph different subjects even at almost the same time, the images may be limited to only the images of the same subject. As a method of limiting the subject, it may be used whether or not the GPS information included in the image has a close value. When a plurality of subjects are detected, the user may be made to select which one of the plurality of subjects is displayed by displaying a selection menu.
　図７に示すフローチャートは、図４に示したフローチャートとステップＳ２１７より後の処理が異なる。したがって、ステップＳ２１７より後のステップのみ説明し、他は説明を省略する。 The flowchart shown in FIG. 7 is different from the flowchart shown in FIG. 4 in the processing after step S217. Therefore, only the steps after step S217 will be described, and the other descriptions will be omitted.
　ステップＳ２１７において、連続撮影かどうかの判定で偽の場合（ステップＳ２１７の「Ｎｏ」）、ステップＳ５１１に進む。ステップＳ５１１では、主表示エリア４０１のみを表示させ、主表示エリア４０１以外のウィンドウである副表示エリアを閉じ、主表示エリア４０１を選択する。そして、所定時間経過後（第二の表示間隔）に、ステップＳ２１３において、主表示エリア４０１に表示されている画像データに換えて、後の画像データを表示する。 In step S217, if the result of the determination as to whether or not continuous shooting is false ("No" in step S217), the process proceeds to step S511. In step S 511, only the main display area 401 is displayed, the sub display area which is a window other than the main display area 401 is closed, and the main display area 401 is selected. Then, after a predetermined time (second display interval), in step S213, the image data displayed in the main display area 401 is changed to display the subsequent image data.
　ステップＳ２１７において、連続撮影かどうかの判定で真の場合（ステップＳ２１７の「Ｙｅｓ」）、ステップＳ５１２に進む。そして、例えば、連続撮影された複数の画像データが主表示エリア４０１及び副表示エリア４０２、副表示エリア４０３に表示されている場合において、その後さらにステップＳ２１７で連続撮影されたと判定された複数の画像データが現在表示されている主表示エリア４０１及び副表示エリア４０２、副表示エリア４０３に表示される複数の画像データのいずれとも、撮影アングルが異なると判定された場合（ステップＳ５１２の「Ｙｅｓ」）、ステップＳ５１３へ進む。いずれかの表示エリアと撮影アングルが同じ場合（ステップＳ５１２の「Ｎｏ」）、ステップＳ５１４へ進む。 In step S217, if the result of the determination as to whether or not continuous shooting is true ("Yes" in step S217), the process proceeds to step S512. Then, for example, when a plurality of image data captured continuously is displayed in the main display area 401, the sub display area 402, and the sub display area 403, a plurality of images determined to be captured continuously in step S217. When it is determined that the shooting angle is different in any of the plurality of image data displayed in the main display area 401 and the sub display area 402 in which the data is currently displayed, and the sub display area 403 ("Yes" in step S512) The process proceeds to step S513. If one of the display areas is the same as the shooting angle ("No" in step S512), the process proceeds to step S514.
　撮影アングルが同じかを判定する手段としては、画像データが撮影された撮影装置４５１、撮影装置４５２、撮影装置４５３が同一の個体であるかによって判定する。あるいは、画像の類似性を画像認識で判定したり、撮影時に撮影装置４５１、撮影装置４５２、撮影装置４５３が向いていた方角を傾きセンサー、地磁気センサー、角速度センサーなどで測定された結果を画像データにメタデータとして格納しておき、このメタデータを用いて判定してもよい。 As a means for determining whether the imaging angles are the same, it is determined whether the imaging device 451, the imaging device 452, and the imaging device 453 from which the image data is captured are the same individual. Alternatively, image similarity may be determined by image recognition, and the direction in which the imaging device 451, imaging device 452, and imaging device 453 were directed at the time of imaging may be measured by an inclination sensor, geomagnetic sensor, angular velocity sensor, etc. May be stored as metadata, and determination may be made using this metadata.
　ステップＳ５１３において、アングルに対応付けた新しい副表示エリアのウィンドウを開く。ステップＳ５１３に進む場合には、ステップＳ５１２で撮影アングルが同じ表示エリアがないと判定されている。 In step S513, a window of a new sub display area associated with the angle is opened. When the process proceeds to step S513, it is determined in step S512 that there is no display area having the same shooting angle.
　ステップＳ５１４において、アングルの一致する表示ウィンドウを選択する。そして、ステップＳ２１３において、選択した表示ウィンドウに表示されている連続する１組の画像データのうち前の画像データに換えて、後の画像データを表示する。 In step S514, a display window with a matching angle is selected. Then, in step S213, the subsequent image data is displayed in place of the previous image data among the continuous set of image data displayed in the selected display window.
　なお、ステップＳ５１５において、不要な窓があれば閉じてもよい。一定期間や枚数、表示されている画像が更新されていない表示ウィンドウがあれば、その表示ウィンドウを閉じる。 In step S515, if there is an unnecessary window, it may be closed. If there is a display window for which the displayed image has not been updated for a certain period, the number, or the like, the display window is closed.
　また、閉じるべき表示ウィンドウが主表示エリア４０１である場合には、副表示エリア４０２、または副表示エリア４０３の内容を主表示エリア４０１に表示すると同時に副表示エリア４０２、または副表示エリア４０３の表示ウィンドウを閉じてもよい。ここで、表示ウィンドウは、主表示エリア４０１と副表示エリア４０２、または副表示エリア４０３を前提として説明したが、副表示エリアは２つに限るものではなく、より多くともよい。 When the display window to be closed is the main display area 401, the contents of the sub display area 402 or sub display area 403 are displayed on the main display area 401 and the sub display area 402 or sub display area 403 is displayed at the same time. You may close the window. Here, the display window has been described on the premise of the main display area 401 and the sub display area 402, or the sub display area 403, but the number of sub display areas is not limited to two, and may be more.
　上述したように、本実施の形態に係る画像再生装置の表示部は、読み込まれた複数の画像データを表示する複数の表示領域を備えている。再生制御部は、さらに、付加情報（メタデータ）に基づき連続撮影された複数の画像データの撮影アングルが同じかを判定する。そして、再生制御部１３４は、撮影アングルが同じであると判定した場合、複数の表示領域の内、連続する１組の画像データのうち前の画像データが表示されている表示領域に、前の画像データに換えて後の画像データを表示する。また、再生制御部１３４は、撮影アングルが異なると判定した場合、複数の表示領域の内、前の画像データが表示されている表示領域と異なる表示領域に、後の画像データを表示させる。 As described above, the display unit of the image reproduction apparatus according to the present embodiment includes a plurality of display areas for displaying a plurality of read image data. The reproduction control unit further determines whether the shooting angles of the plurality of image data continuously shot are the same based on the additional information (metadata). Then, when the reproduction control unit 134 determines that the shooting angles are the same, the display area in which the previous image data is displayed among the continuous image data among the plurality of display areas is displayed before the previous one. Instead of the image data, display the subsequent image data. Further, when it is determined that the shooting angles are different, the reproduction control unit 134 causes the subsequent image data to be displayed in a display area different from the display area in which the previous image data is displayed among the plurality of display areas.
　したがって、ムービーを含む複数のカメラで同じシーンを様々なアングルから撮影したとき、時間的な順序関係を保持したままユーザに提示することが出来る。このため、複数のカメラで撮影された画像で、ほぼ同時に撮影されたものがどれか分かり、かつ、それぞれの窓に表示される撮影アングルが一定であるため、ユーザの複数画像に対する時間的認知を助けることで、より分かりやすく楽しんで視聴することが可能になる。また、カメラとして、ＤＳＣと動画撮影可能なムービーとを両方扱うことで、動画、連続撮影の写真、１枚だけの写真をひとつの時間軸に統一して提示する。このため、ユーザは時間進行を理解しながら複数の動画、写真の閲覧を楽しむことができる。 Therefore, when the same scene is shot from various angles by a plurality of cameras including a movie, it is possible to present it to the user while maintaining the temporal order relation. For this reason, it is possible to know which of the images shot by a plurality of cameras are shot at substantially the same time, and the shooting angles displayed on the respective windows are constant, so that temporal recognition of a plurality of images by the user Helping makes it easier to understand and enjoy watching. In addition, by treating both DSC and a movie-capable movie as a camera, the movie, continuous-shooting photos, and only one photograph are unified and presented on one time axis. Therefore, the user can enjoy browsing of a plurality of videos and photos while understanding time progression.
　本発明にかかる画像再生装置及び画像再生方法は、連続して撮影された複数の画像データを認識し、最適な表示間隔でユーザに提示することが可能になるので、複数の画像の閲覧機能や検索機能等として有用である。 The image reproducing apparatus and the image reproducing method according to the present invention can recognize a plurality of continuously captured image data and present it to the user at an optimal display interval. It is useful as a search function etc.
　１００，１００Ａ　　画像再生システム
　１１０，４５１，４５２，４５３　　撮影装置
　１１１　　撮影部
　１１２　　メタデータ生成部
　１１３　　メタデータ付加部
　１１４　　書込部
　１２０　　記録メディア
　１３０，１３０Ｂ　　画像再生装置
　１３１　　操作入力部
　１３２　　読込部
　１３３　　メタデータ分離部（付加情報読取部）
　１３４　　再生制御部
　１３５　　再生部
　１３６，１３６Ｂ　　提示部 100, 100A image reproduction system 110, 451, 452, 453 imaging device 111 imaging unit 112 metadata generation unit 113 metadata addition unit 114 writing unit 120 recording medium 130, 130B image reproduction device 131 operation input unit 132 reading unit 133 meta Data separation unit (additional information reading unit)
134 playback control unit 135 playback unit 136, 136 B presentation unit

Claims (9)

  1. 複数の画像データを読み込む読込部と、
    複数の前記画像データに付加されている付加情報を読み取る付加情報読取部と、
    前記付加情報に基づいて複数の前記画像データが連続撮影された画像データであるか否かを判定し、前記判定結果に応じて複数の前記画像データを順次表示する際の表示間隔を設定する再生制御部と、
    前記表示間隔に基づいて複数の前記画像データをデコードする再生部と、
    デコードされた複数の前記画像データを表示する表示部と、
    を備え、
    前記再生制御部は、
    　　複数の前記画像データの前記撮影日時の差が第一の閾値以上である場合、複数の前記画像データは連続撮影された複数の画像データでないと判定し、前記表示間隔を第二の表示間隔に設定して前記再生部に複数の前記画像データのデコードを行なわせ、
    　　複数の前記画像データの撮影日時の差が第一の閾値未満である場合、複数の前記画像データは連続撮影された複数の画像データであると判定し、前記表示間隔を第一の表示間隔に設定して前記再生部に複数の前記画像データのデコードを行なわせ、
    　　前記デコードを行った前記画像データと前記デコードを行った前記画像データの次にデコードするべき前記画像データとの前記撮影日時の差が前記第一の閾値よりも小さい第二の閾値未満である場合、前記撮影日時の差が前記第二の閾値以上になるまで前記再生部に複数の前記画像データのデコードを行なわせない、
    画像再生装置。     A reading unit that reads a plurality of image data,
    An additional information reading unit that reads additional information attached to a plurality of the image data;
    Based on the additional information, it is determined whether or not a plurality of the image data are continuously captured image data, and a display interval for sequentially displaying the plurality of the image data is set according to the determination result. A control unit,
    A reproduction unit that decodes a plurality of the image data based on the display interval;
    A display unit for displaying the plurality of decoded image data;
    Equipped with
    The reproduction control unit
    If the difference between the shooting date and time of the plurality of image data is equal to or greater than the first threshold, it is determined that the plurality of image data is not the plurality of continuously shot image data, and the display interval is the second display interval. Setting and causing the reproduction unit to decode a plurality of the image data;
    If the difference between the shooting date and time of the plurality of image data is less than the first threshold, it is determined that the plurality of image data are a plurality of continuously shot image data, and the display interval is set to the first display interval. Setting and causing the reproduction unit to decode a plurality of the image data;
    When the difference between the shooting date and time between the image data subjected to the decoding and the image data to be decoded next to the image data subjected to the decoding is less than a second threshold smaller than the first threshold The reproduction unit does not decode the plurality of pieces of image data until the difference between the shooting date and time becomes equal to or more than the second threshold.
    Image playback device.
  2. 前記表示部は、複数の前記画像データを表示する複数の表示領域を備え、
    前記再生制御部は、さらに、前記付加情報に基づいて連続撮影された複数の前記画像データの撮影アングルが同じであるか否かを判定し、
    　　連続撮影された複数の前記画像データの前記撮影アングルが同じであると判定した場合、複数の前記画像データを同じ表示領域に表示させるよう前記再生部に指示し、
    　　連続撮影された複数の前記画像データの前記撮影アングルが異なると判定した場合、複数の前記画像データを異なる表示領域に表示させるよう前記再生部に指示する、
    請求項１記載の画像再生装置。     The display unit includes a plurality of display areas for displaying a plurality of the image data.
    The reproduction control unit further determines, based on the additional information, whether or not the shooting angles of the plurality of continuously shot image data are the same.
    When it is determined that the shooting angles of the plurality of continuously shot image data are the same, the reproduction unit is instructed to display the plurality of image data in the same display area,
    If it is determined that the shooting angles of the plurality of continuously captured image data are different, the reproduction unit is instructed to display the plurality of image data in different display areas.
    An image reproduction apparatus according to claim 1.
  3. 前記第一の表示間隔は、前記第二の表示間隔よりも短い請求項１記載の画像再生装置。 The image reproduction apparatus according to claim 1, wherein the first display interval is shorter than the second display interval.
  4. 前記表示部は、前記読込部、前記付加情報読取部、前記再生制御部及び前記再生部と別体である、
    請求項１記載の画像再生装置。     The display unit is separate from the reading unit, the additional information reading unit, the reproduction control unit, and the reproduction unit.
    An image reproduction apparatus according to claim 1.
  5. 複数の前記画像データは、所定時間に亘って記録された動画データである請求項１記載の画像再生装置。 2. The image reproduction apparatus according to claim 1, wherein the plurality of image data are moving image data recorded over a predetermined time.
  6. 複数の画像データを読み込むステップと、
    複数の前記画像データに付加されている付加情報を読み取るステップと、
    前記付加情報に基づいて複数の前記画像データが連続撮影された画像データであるか否かを判定し、前記判定結果に応じて複数の前記画像データを順次表示する際の表示間隔を設定するステップと、
    前記表示間隔に基づいて複数の前記画像データをデコードするステップと、
    デコードされた複数の前記画像データを表示するステップと、
    を有し、
    前記表示間隔を設定するステップは、
    　　複数の前記画像データの前記撮影日時の差が第一の閾値以上である場合、複数の前記画像データは連続撮影された複数の画像データでないと判定し、前記表示間隔を第二の表示間隔に設定して前記デコードするステップに複数の前記画像データのデコードを行なわせ、
    　　複数の前記画像データの撮影日時の差が第一の閾値未満である場合、複数の前記画像データは連続撮影された複数の画像データであると判定し、前記表示間隔を第一の表示間隔に設定して前記デコードするステップに複数の前記画像データのデコードを行なわせ、
    　　前記デコードを行った前記画像データと前記デコードを行った前記画像データの次にデコードするべき前記画像データとの前記撮影日時の差が前記第一の閾値よりも小さい第二の閾値未満である場合、前記撮影日時の差が前記第二の閾値以上になるまで前記デコードするステップに複数の前記画像データのデコードを行なわせない、
    画像再生方法。     Reading a plurality of image data;
    Reading additional information attached to a plurality of the image data;
    Determining whether or not a plurality of the image data are continuously captured image data based on the additional information, and setting a display interval when sequentially displaying the plurality of the image data according to the determination result When,
    Decoding a plurality of the image data based on the display interval;
    Displaying the plurality of decoded image data;
    Have
    In the step of setting the display interval,
    If the difference between the shooting date and time of the plurality of image data is equal to or greater than the first threshold, it is determined that the plurality of image data is not the plurality of continuously shot image data, and the display interval is the second display interval. Causing the setting and decoding step to decode a plurality of the image data;
    If the difference between the shooting date and time of the plurality of image data is less than the first threshold, it is determined that the plurality of image data are a plurality of continuously shot image data, and the display interval is set to the first display interval. Causing the setting and decoding step to decode a plurality of the image data;
    When the difference between the shooting date and time between the image data subjected to the decoding and the image data to be decoded next to the image data subjected to the decoding is less than a second threshold smaller than the first threshold And a plurality of the image data are not decoded in the decoding step until the difference between the shooting date and time becomes equal to or more than the second threshold.
    Image playback method.
  7. 前記表示するステップは、複数の表示領域を有し、
    前記表示間隔を設定するステップは、さらに、前記付加情報に基づいて連続撮影された複数の前記画像データの撮影アングルが同じであるか否かを判定し、
    　　連続撮影された複数の前記画像データの前記撮影アングルが同じであると判定した場合、複数の前記画像データを同じ表示領域に表示させるよう前記デコードするステップに指示し、
    　　連続撮影された複数の前記画像データの前記撮影アングルが異なると判定した場合、複数の前記画像データを異なる表示領域に表示させるよう前記デコードするステップに指示する、
    請求項６記載の画像再生方法。     The displaying step includes a plurality of display areas.
    The step of setting the display interval further determines whether the shooting angles of the plurality of continuously captured image data are the same based on the additional information,
    If it is determined that the shooting angles of the plurality of continuously shot image data are the same, the decoding step is instructed to display the plurality of image data in the same display area;
    When it is determined that the imaging angles of the plurality of continuously captured image data are different, the decoding step is instructed to display the plurality of image data in different display areas.
    The image reproduction method according to claim 6.
  8. 前記第一の表示間隔は、前記第二の表示間隔よりも短い請求項６記載の画像再生方法。 The image reproduction method according to claim 6, wherein the first display interval is shorter than the second display interval.
  9. 複数の前記画像は、所定時間に亘って記録された動画である請求項６記載の画像再生方法。 7. The method according to claim 6, wherein the plurality of images are moving images recorded over a predetermined time.
PCT/JP2010/006106 2009-10-23 2010-10-14 Image playback device and image playback method WO2011048780A1 (en)

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