US20040001696A1 - Image playback apparatus, image recording/playback apparatus, control methods of these apparatuses, program, and storage medium - Google Patents

Image playback apparatus, image recording/playback apparatus, control methods of these apparatuses, program, and storage medium Download PDF

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Publication number
US20040001696A1
US20040001696A1 US10/600,759 US60075903A US2004001696A1 US 20040001696 A1 US20040001696 A1 US 20040001696A1 US 60075903 A US60075903 A US 60075903A US 2004001696 A1 US2004001696 A1 US 2004001696A1
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Prior art keywords
image
playback
sound
representative
motion
Prior art date
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Abandoned
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US10/600,759
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English (en)
Inventor
Kouji Kogusuri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
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Canon Inc
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Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Assigned to CANON KABUSHIKI KAISHA reassignment CANON KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KOGUSURI, KOUJI
Priority to US10/653,956 priority Critical patent/US7430363B2/en
Publication of US20040001696A1 publication Critical patent/US20040001696A1/en
Abandoned legal-status Critical Current

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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
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape
    • H04N5/783—Adaptations for reproducing at a rate different from the recording rate
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/34—Indicating arrangements 
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • 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
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/781—Television signal recording using magnetic recording on disks or drums
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/84—Television signal recording using optical recording
    • H04N5/85—Television signal recording using optical recording on discs or drums
    • 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
    • H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
    • 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
    • H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/806—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components with processing of the sound signal
    • H04N9/8063—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components with processing of the sound signal using time division multiplex of the PCM audio and PCM video signals

Definitions

  • the present invention relates to an image playback apparatus or image recording/playback apparatus capable of random access and having a function of displaying a list in which reduced images of recorded image files are arranged into a predetermined array.
  • the present invention therefore, has been made in consideration of the above situation, and has as its object to allow easy recognition of the contents of a motion image file when INDEX is displayed.
  • an image playback apparatus comprising a playback device adapted to play back from a recording medium a plurality of image files each having motion image data, a display device having a function of displaying on the same screen representative images of a plurality of image files recorded on the recording medium by using the image files played back by the playback device, a selecting device adapted to select a desired representative image from the plurality of representative images displayed on the display device, and a control device adapted to control the playback device and the display device such that a display form of the representative image selected by the selecting device differs from a display form of other representative images.
  • an image playback apparatus control method of controlling an image playback apparatus comprising a playback device adapted to play back from a recording medium a plurality of image files each having motion image data, a display device having a function of displaying on the same screen representative images of a plurality of image files recorded on said recording medium by using the image files played back by the playback device, and a selecting device adapted to select a desired representative image from the plurality of representative images displayed on the display device, wherein the playback device and the display device are controlled such that a display form of the representative image selected by the selecting device differs from a display form of other representative images.
  • a storage medium storing the program described above in a computer readable form.
  • an image recording/playback apparatus comprising an image sensing device adapted to sense a motion image, a sound input device adapted to input a sound, a recording medium adapted to record a sub sound input from said sound input device in an image sensing standby state for the motion image, a main sound input from the sound input device while the motion image is being sensed, and the motion image sensed by the image sensing device, a display device having a function of displaying, in a predetermined array form, a list of representative images of a predetermined number of image files of a plurality of image files recorded on the recording medium, a selecting device adapted to select at least one of the representative images of the predetermined number of image files displayed on the display device, a sound playback device adapted to play back the sound recorded on the recording medium; and a control device which, when at least one image is selected by the selecting device, controls the sound playback device to play back a sub sound corresponding to the selected image file.
  • an image recording/playback apparatus control method of controlling an image recording/playback apparatus comprising an image sensing device adapted to sense a motion image, a sound input device adapted to input a sound, a recording medium adapted to record a sub sound input from the sound input device in an image sensing standby state for the motion image, a main sound input from the sound input device while the motion image is being sensed, and the motion image sensed by the image sensing device, a display device having a function of displaying, in a predetermined array form, a list of representative images of a predetermined number of image files of a plurality of image files recorded on the recording medium, a selecting device adapted to select at least one of the representative images of the predetermined number of image files displayed on the display device, and a sound playback device adapted to play back the sound recorded on the recording medium, wherein when at least one image is selected by the selecting device, the sound playback device is so controlled as to play back a sub
  • a program for allowing a computer to execute the image recording/playback apparatus control method described above is provided.
  • a storage medium storing the program described above in a computer readable form.
  • FIG. 1 is a schematic block diagram of an image playback apparatus according to the first embodiment of the present invention
  • FIG. 2 is aview showing examples of INDEX motion image playback
  • FIG. 3 is a flow chart showing the operation of a system controller for executing an INDEX motion image playback method of the first embodiment
  • FIG. 4 is a view showing the INDEX motion image playback method of the first embodiment
  • FIG. 5 is a view showing an example in which an image is selected during INDEX motion image playback
  • FIG. 6 is a flow chart showing the operation of a system controller when an image is selected during INDEX motion image playback
  • FIG. 7 is a block diagram showing the arrangement of a playback portion of the fourth embodiment
  • FIG. 8 is a block diagram of a motion image/sound recording/playback apparatus according to the fourth embodiment.
  • FIG. 9 is a view showing an example of display of a list containing a plurality of scenes.
  • FIG. 1 is a schematic block diagram showing an image playback apparatus according to the first embodiment of the present invention.
  • FIG. 2 is a view showing INDEX motion image playback of the first embodiment.
  • FIG. 3 is a flow chart showing the operation of a system controller 11 for executing an INDEX motion image playback method of the first embodiment.
  • FIG. 4 is a view showing the INDEX motion image playback method in FIG. 3.
  • FIG. 5 is a view showing the way an image is selected during INDEX motion image playback of the first embodiment.
  • FIG. 6 is a flow chart showing the operation of the system controller 11 when an image is selected during INDEX motion image playback shown in FIG. 5.
  • reference numeral 11 denotes the system controller for controlling the whole image playback apparatus; 12 , a resizing unit for reducing and enlarging an image size; 13 , a decoder for expanding compressed image data; 14 , a display such as a liquid crystal display for displaying an image; 15 , operation keys as an interface with a user; 16 , an image memory for recording and holding image data processed by the resizing unit 12 and decoder 13 ; 17 , an interface (I/F) with a recording medium; and 18 , a recording medium such as a disk which can be randomly accessed.
  • I/F interface
  • the I/F 17 reads out data from the recording medium 18 .
  • the decoder 13 decodes and expands the readout data, and rasterizes the expanded data on the image memory 16 .
  • the resizing unit 12 reads out the rasterized image data, and displays the readout data on the display 14 after enlarging or reducing the data.
  • FIG. 2 is a view showing INDEX motion image playback according to the first embodiment of the present invention.
  • 2 - 1 shows simultaneous playback of six INDEX motion images on the display 14 .
  • T be the frame rate (the number of frames to be updated per unit time) when each of the six motion images is normally played back
  • the frame rate is set to T/ 6 during INDEX motion image playback.
  • thinning playback of the original image of each of the six motion images is performed to simultaneously display six frames of images reduced by the resizing unit 12 . Since the frame rate is T/ 6 , the load on the decoder 13 of the image playback apparatus is equal to that of normal playback.
  • 2 - 2 shows simultaneous playback of nine motion image files on the display 14 .
  • T be the frame rate when each of the nine motion images is normally played back
  • the frame rate is set to T/ 9 during INDEX motion image playback.
  • thinning playback of the original image of each of the nine motion images is performed to simultaneously display nine frames of images reduced by the resizing unit 12 . Since the frame rate is T/ 9 , the load on the decoder 13 of the image playback apparatus is equal to that of normal playback, as in the case of 2 - 1 .
  • [0031] 2 - 3 shows playback of nine image files on the display 14 .
  • these nine image files to be displayed include three motion image files and six still image files.
  • T be the frame rate when each of the three motion images is normally played back
  • the frame rate is set to T/ 3 during INDEX motion image playback.
  • thinning playback of the original image of each of the three motion images is performed to simultaneously display three frames of images reduced by the resizing unit 12 .
  • For the still image files initially displayed images are kept displayed even during INDEX motion image playback.
  • Each still image is decoded only when it is displayed for the first time, and the frame rate of each motion image file is T/ 3 . Therefore, the load on the decoder 13 of the image playback apparatus is equal to that of normal playback.
  • FIG. 3 is a flow chart showing the operation of the system controller 11 for executing the INDEX motion image playback method of the first embodiment.
  • T the frame rate when a motion image file is normally played back
  • n is reset to 1 (step S 300 ).
  • the system controller 11 calculates, from the nth motion image file, a frame rate T 1 when only I pictures are played back, and substitutes T 1 for t[n] (step S 301 ).
  • the system controller 11 determines whether T 2 calculated in step S 303 satisfies Ti ⁇ t[n] (step S 304 ). If NO in step S 304 , the flow returns to step S 303 to calculate the thinning frame rate T 2 again. If YES in step S 302 or in step S 304 , the system controller 11 substitutes n+1 for n (step S 305 ), and determines whether n>N (steps S 306 ). If NO in step S 306 , the flow returns to step S 301 .
  • step S 306 the system controller 11 performs image playback by thinning N motion image files by the frame rate t[n] (the frame rate of the first motion image file is T[ 1 ]), thereby displaying images reduced by the resizing unit 12 on the display 14 at the frame rate Ti (step S 307 ).
  • FIG. 4 is a view showing the INDEX motion image playback method shown in FIG. 3.
  • the frame rate of normal playback is T and the number N of motion image files to be simultaneously played back is 6
  • the frame rate of INDEX motion image playback is T/ 6
  • n is the number of a file currently being processed, and the thinning playback frame rate t[n] corresponds to n.
  • 4 - 1 shows a normal playback method in which I, B, and P pictures are played back.
  • the frame rate is as shown in 4 - 2 . That is, the frame rate t[n] is T/ 4 . Since Ti ⁇ t[n] does not hold, thinning to 1 ⁇ 2 is performed from 4 - 2 . The result is as shown in 4 - 3 .
  • FIG. 5 is a view showing an example in which an image is selected during INDEX motion image playback of the first embodiment.
  • FIG. 6 is a flow chart showing the operation of the system controller 11 when an image is selected during INDEX motion image playback shown in FIG. 5.
  • T the frame rate when a motion image file is normally played back
  • Ti the frame rate when INDEX motion image playback is performed.
  • N the number of motion image files to be simultaneously played back on the display 14
  • n (N ⁇ n) be the number of a motion image file to be played back by INDEX motion image playback
  • t[n] be the thinning frame rate.
  • n is reset to 1 (step S 600 ).
  • the system controller 11 determines whether the nth file is currently being selected (step S 601 ). If YES in step S 601 , T/ 2 is substituted for Ti (step S 602 ). If NO in step S 601 , T/(2 ⁇ N) is substituted for Ti (step S 602 ).
  • the system controller 11 calculates, from the nth motion image file, a frame rate T 1 when only I pictures are played back, and substitutes T 1 for t[n] (step S 604 ).
  • the system controller 11 determines whether T 1 calculated in step S 604 satisfies Ti ⁇ t[n] (step S 605 ).
  • the system controller 11 determines whether the frame rate T 2 calculated in step S 605 satisfies Ti ⁇ t[n] (step S 607 ). If NO in step S 607 , the flow returns to step S 606 to calculate the thinning frame rate T 2 again. If YES in step S 605 or in step S 607 , the system controller substitutes n+1 for n (step S 608 ), and determines whether n>N (step S 609 ).
  • step S 609 the flow returns to step S 601 . If YES in step S 609 , the system controller 11 performs image playback by thinning N motion image files by the frame rate t[n] (the frame rate of the first motion image file is T[ 1 ]). That is, the system controller 11 displays images reduced by the resizing unit 12 on the display 14 such that the frame rate of a selected file is T/ 2 and the frame rate of nonselected files is T/(2 ⁇ N) (step S 610 ).
  • the INDEX motion image playback frame rate is determined in accordance with the number of motion image files to be displayed on the screen.
  • the INDEX motion image playback frame rate can also be determined in accordance with the number of image files (of both still images and motion images) to be displayed.
  • a selected motion image file is played back by increasing the frame rate, and nonselected motion image files are played back by decreasing the frame rate.
  • the first to third embodiments can implement INDEX motion image playback by which a plurality of thinned motion image files can be simultaneously played back and displayed by using the calculated frame rate. Therefore, a user can recognize the contents of a plurality of motion image files at the same time. Also, the frame rate of a selected motion image file can be made higher than that of nonselected motion image files. This allows a user to recognize details of the contents of an image recorded in the selected file.
  • the fourth embodiment can perform image INDEX display as in the first embodiment and can also output sounds at the same time. Additionally, the fourth embodiment has not only a function of playing back images and sounds but also a function of recording them. In this embodiment, all images to be played back by INDEX display can be still images.
  • FIG. 7 is a block diagram showing the arrangement of a playback portion of the fourth embodiment, in which a sound playback unit 200 is added to the arrangement of the first embodiment shown in FIG. 1.
  • FIG. 8 is a block diagram of a motion image/sound recording/playback apparatus according to the fourth embodiment of the present invention. The playback portion shown in FIG. 7 is illustrated in more detail in FIG. 8.
  • reference numeral 101 denotes an image sensing device for converting an image into an electrical signal
  • 102 a microphone for converting a sound into an electrical signal
  • 103 a recording image processor for converting an output image signal from the image sensing device 101 into a predetermined format to record the signal
  • 104 a sound buffer for temporarily storing a sound signal of a predetermined time
  • 105 a recoding sub sound processor for converting a sub sound signal into a predetermined format to record the signal
  • 106 a recording main sound processor for converting a main sound signal into a predetermined format to record the signal
  • 107 a switch for selectively outputting the output sound signal from the microphone 102 to the sound buffer 104 and recording main sound processor 106
  • 108 an image/sound multiplexer for multiplexing the output recording image signal from the recording image processor 103 , the output sub sound signal from the recording sub sound processor 105 , and the output main sound signal from the recording main
  • a recording standby state starts, and the system controller 119 so switches the switch 107 as to output an output sound signal from the microphone 102 to the sound buffer 104 .
  • the sound buffer 104 is always updated by a new sound signal to store the latest sound signal of a predetermined time. Before starting recording, the user stores in the sound buffer 104 a sound such as an explanation of an image to be sensed.
  • the system controller 119 When recording is started by an operation by the user, the system controller 119 so switches the switch 107 as to output an output sound signal from the microphone 102 to the recording main sound processor 106 . At the same time, the system controller 119 stops updating of the sound signal in the sound buffer 104 .
  • the sound signal stored in the sound buffer 104 is converted into a predetermined format and output as a sub sound signal to the image/sound multiplexer 108 by the recording sub sound processor 105 .
  • the output sound signal from the microphone 102 is converted into a predetermined format and output as a main sound signal to the image/sound multiplexer 108 by the recording main signal processor 106 .
  • An output image signal from the image sensing device 101 is converted into a predetermined format and output as an image signal to the image/sound multiplexer 108 by the recording image processor 103 .
  • the image/sound multiplexer 108 multiplexes the image signal, main sound signal, and sub sound signal, and outputs the multiplexed signal to the recording device 109 .
  • the recording device 109 records the multiplexed signal on the recording medium 110 .
  • the playback device 111 plays back the first frame signal of a plurality of scenes recorded on the recording medium 110 , and outputs the signal to the image/sound separator 112 .
  • the image/sound separator 112 separates the output playback signal from the playback device 111 into an image signal, main sound signal, and sub sound signal.
  • the playback image processor 115 processes the output image signal from the image/sound separator 112 , generates image data indicating an INDEX image as described previously, and outputs the generated image data to the monitor 118 . For example, a scene selecting list as shown in FIG. 9 is displayed.
  • the playback device 111 plays back a signal of the selected scene, and the playback sub sound processor 114 processes the output sub sound signal from the image/sound separator 112 to convert the signal into a playable sound signal.
  • the system controller 119 so switches the switch 116 as to output the output signal from the playback sub sound processor 114 to the loudspeaker 117 .
  • the loudspeaker 117 outputs the output playable sound signal from the playback sub sound processor 114 .
  • the image/sound separator 112 detects that no sub sound signal is recorded, and notifies the system controller 119 of this information.
  • the system controller 119 so switches the switch 116 as to output the output signal from the playback main sound processor 113 to the loudspeaker 117 .
  • the playback main sound processor 113 processes the output main sound signal from the image/sound separator 112 to convert the signal into a playable sound signal. Since the switch 116 is so switched as to output the output signal from the playback main sound processor 113 to the loudspeaker 117 , the main sound signal of the selected scene is output from the loudspeaker 117 .
  • a message is displayed to prompt the user to record a sub sound signal to be output when the scene is selected from the displayed list.
  • the fourth embodiment can provide a motion image/sound recording/playback apparatus by which a user can easily select a desired scene from a recording medium recording a plurality of scenes without any complicated operation.
  • the present invention can be applied to a system constituted by a plurality of devices (e.g., a host computer, interface, reader, and printer) or to an apparatus (e.g., a copying machine or facsimile apparatus) comprising a single device.
  • a host computer e.g., a host computer, interface, reader, and printer
  • an apparatus e.g., a copying machine or facsimile apparatus
  • the object of the present invention can also be achieved by supplying a storage medium (or a recording medium) recording program codes of software for implementing the functions of the above embodiments to a system or apparatus, and reading out and executing the program codes stored in the storage medium by a computer (or a CPU or MPU) of the system or apparatus.
  • a storage medium or a recording medium
  • the program codes read out from the storage medium implement the functions of the embodiments, and the storage medium storing these program codes constitutes the invention.
  • the present invention includes a case where an OS (Operating System) or the like running on the computer performs part or the whole of actual processing in accordance with designations by the program codes and thereby implements the functions of the above embodiments.
  • OS Operating System
  • the present invention includes a case where the program codes read out from the storage medium are written in a memory of a function expansion card inserted into the computer or of a function expansion unit connected to the computer, and, in accordance with designations by the program codes, a CPU or the like of the function expansion card or function expansion unit performs part or the whole of actual processing and thereby implements the functions of the above embodiments.
  • this storage medium stores program codes corresponding the flow charts explained previously.
  • each embodiment allows a user to readily recognize the contents of a motion image file when INDEX is displayed.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Studio Devices (AREA)
  • Controls And Circuits For Display Device (AREA)
US10/600,759 2002-06-27 2003-06-23 Image playback apparatus, image recording/playback apparatus, control methods of these apparatuses, program, and storage medium Abandoned US20040001696A1 (en)

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CN102196262A (zh) * 2010-03-09 2011-09-21 夏普株式会社 影像内容再生装置及其控制方法、以及记录介质
CN105989216A (zh) * 2015-03-19 2016-10-05 纳宝株式会社 漫画内容编辑方法和漫画内容编辑设备

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JP4649320B2 (ja) * 2005-11-28 2011-03-09 キヤノン株式会社 通信装置、記録装置及びプログラム
JP5130421B2 (ja) 2006-06-18 2013-01-30 雅英 田中 通信機能を有するデジタルカメラ
JP5468189B2 (ja) * 2007-02-01 2014-04-09 シャープ株式会社 映像表示装置及び映像表示方法
JP4752900B2 (ja) * 2008-11-19 2011-08-17 ソニー株式会社 画像処理装置、画像表示方法および画像表示プログラム
JP2013046357A (ja) * 2011-08-26 2013-03-04 Sharp Corp 画像再生装置、画像再生方法および画像再生プログラム
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