WO2011158399A1 - Content playback apparatus, content playback method, and content playback program - Google Patents

Content playback apparatus, content playback method, and content playback program Download PDF

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Publication number
WO2011158399A1
WO2011158399A1 PCT/JP2011/001028 JP2011001028W WO2011158399A1 WO 2011158399 A1 WO2011158399 A1 WO 2011158399A1 JP 2011001028 W JP2011001028 W JP 2011001028W WO 2011158399 A1 WO2011158399 A1 WO 2011158399A1
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WO
WIPO (PCT)
Prior art keywords
image
content
reproduction
representative image
video content
Prior art date
Application number
PCT/JP2011/001028
Other languages
French (fr)
Japanese (ja)
Inventor
笹川嘉孝
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パナソニック株式会社
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Filing date
Publication date
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Publication of WO2011158399A1 publication Critical patent/WO2011158399A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • 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
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • 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
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/326—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier used signal is a video-frame or a video-field (P.I.P.)
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
    • 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
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2508—Magnetic discs
    • G11B2220/2516—Hard disks
    • 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
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs

Definitions

  • the present invention relates to a content reproduction apparatus, a content reproduction method, and a content reproduction program for reproducing moving image content.
  • Patent Document 1 determines the closest high-resolution image as a representative image instead of the image at the operation time. Thereby, the user can confirm the content of moving image content more reliably.
  • JP-A-11-331754 Japanese Patent Laid-Open No. 11-136557 JP 2005-56175 A JP-A-8-331504 International Publication No. 1998/041978
  • the representative image when a pause operation is performed, the representative image remains displayed on the display or the like until an operation to resume playback is performed.
  • the representative image is continuously displayed on the display or the like as the moving image content or a thumbnail indicating each position in the moving image content. That is, the representative image has many opportunities to be exposed to the eyes of a third party or an operator when content is played back. Therefore, the representative image is desirably an image having contents suitable for viewing by a third party or an operator or an image having contents suitable for viewing.
  • Patent Document 1 only performs representative image determination in consideration of image quality. Therefore, an image in which a person's eyes and mouth are half open or a part or the whole of the screen is blurred may be determined as the representative image. In other words, it is inevitable that an image that is not suitable for viewing by a third party or an operator or an image that is not suitable for viewing will continue to be displayed. In order to avoid this, it is necessary to perform a pause operation or a stop operation while carefully checking the content of the moving image and timing it. However, it is very difficult for the user to reliably perform this operation.
  • An object of the present invention is to provide a content playback device, a content playback method, and a content playback program that can improve the comfort of operation.
  • the content playback apparatus of the present invention includes a playback unit that plays back video content, and a control unit that inputs an operation related to playback of the video content and controls playback of the video content according to the operation.
  • the section includes a range determination unit that determines a predetermined range based on the operation time on the condition that a predetermined operation has been performed, a person who is not blurred from the determined range, and is a person An image determining unit that determines an image whose eyes and mouth are not half-opened as a representative image of the moving image content.
  • the content reproduction method of the present invention includes a step of reproducing moving image content, a step of inputting an operation related to reproduction of the moving image content, and a predetermined operation based on the operation time on condition that the predetermined operation has been performed.
  • the content reproduction program of the present invention is based on the operation time on the condition that a process for reproducing moving image content, a process for inputting an operation related to reproduction of the moving image content, and a predetermined operation are performed on a computer.
  • a process for determining a predetermined range to be performed, and a process for determining, from the determined range, an image that is not blurred and whose eyes and mouth are not half-opened as a representative image of the video content Is executed.
  • the present invention it is possible to determine, as a representative image, an image that is not blurred and has a person's eyes and mouth that are not half-opened while using the operation time as a reference.
  • the present invention eliminates the need to worry about the timing of the operation and the eyes of a third party, and can improve the comfort of the operation.
  • Embodiment 1 is a block diagram showing a configuration of a content reproduction apparatus according to Embodiment 1 of the present invention.
  • Flowchart showing the pause processing in the third embodiment The schematic diagram which shows the mode of the exclusion of another scene in the temporary stop process of this Embodiment 3.
  • FIG. The schematic diagram which shows the mode of the removal of the image with an audio
  • FIG. The flowchart which shows the stop process in this Embodiment 3.
  • FIG. The flowchart which shows the designated reproduction
  • FIG. 1 is a block diagram showing a configuration of a content reproduction apparatus according to Embodiment 1 of the present invention.
  • the content playback apparatus 100 is, for example, a DVD (digital versatile disc) recorder that records and plays back video content.
  • the storage unit 200 of the content reproduction apparatus 100 is a predetermined memory area of a hard disk drive, for example, and stores moving image content.
  • the input unit 300 of the content reproduction apparatus 100 is a remote controller including a plurality of key switches, for example, and receives an operation input to the content reproduction apparatus 100 from the user.
  • the output unit 400 of the content reproduction device 100 is, for example, a liquid crystal display device, and outputs images and sound.
  • the content playback unit 500 of the content playback device 100 includes, for example, a processor and a storage medium such as a RAM (random access memory), and the processor executes a control program to play back moving image content.
  • the reproduction unit 510 of the content reproduction unit 500 reads the moving image content from the storage unit 200, performs predetermined decoding processing to reproduce the video and audio of the moving image content, and causes the output unit 400 to output the reproduced video and audio.
  • the control unit 520 of the content reproduction unit 500 inputs an operation related to reproduction of moving image content from the input unit 300, and controls reproduction of the moving image content in the reproduction unit 510 in accordance with the input operation.
  • the range determination unit 521 of the control unit 520 determines that a predetermined range based on the operation time is determined as a reference for the operation time (hereinafter, “processing target range”). Determined).
  • the image determination unit 522 of the control unit 520 displays an image that is not blurred and has a person's eyes and mouth not half-opened from the processing target range determined by the range determination unit 521. To decide.
  • the above-described predetermined operations that trigger the determination of the representative image are, for example, a pause operation and a stop operation for moving image playback.
  • the representative image is displayed, for example, as an image displayed during the pause, or as a thumbnail indicating the moving image content or each position in the moving image content.
  • Such a content reproduction apparatus 100 determines, as a representative image, an image that is not blurred and whose eyes and mouth are not half-opened from the processing target range based on the operation time. Therefore, according to the content reproduction apparatus 100, the user does not have to worry about the timing of the operation or the eyes of a third party, so that the operation can be performed more comfortably.
  • FIG. 2 is a flowchart showing the overall operation of the content reproduction apparatus 100.
  • step S1000 in response to a user operation or the like, the control unit 520 causes the playback unit 510 to start reading and playback of moving image content.
  • control unit 520 determines whether or not a predetermined operation has been performed.
  • the predetermined operation is, for example, a pause operation and a stop operation for moving image reproduction. If the predetermined operation is not performed (S2000: NO), control unit 520 proceeds to step S3000. Further, when a predetermined operation is performed (S2000: YES), control unit 520 proceeds to step S4000.
  • step S3000 the control unit 520 determines whether or not the end of the process is instructed by a user operation or the like. If the end of the process is not instructed (S3000: NO), the control unit 520 returns to step S2000.
  • the range determination unit 521 selects a predetermined range based on the operation time at which the predetermined operation is performed as the processing target range. For example, the range determination unit 521 selects, as the processing target range, a range immediately after the operation time, from the operation time to 1 second after the operation time.
  • the image determining unit 522 sets a non-blurred image, that is, an image in focus, as a representative image candidate image from the range determined by the range determining unit 521. Specifically, the image determination unit 522 detects a blurred image from the moving image content, and sets an image other than the detected image as a candidate image.
  • the details of the method for detecting a blurred image are described in, for example, Japanese Patent Application Laid-Open No. 2003-228620, and thus the description thereof is omitted here.
  • the image determination part 522 excludes the image in which the person's eyes and mouth are half-opened from the candidate images. Specifically, the image determination unit 522 detects an image in which a person's eyes and mouth are half-opened from the moving image content, and excludes the detected image from the candidate images. Details of a method for detecting an image in which a person's eyes and mouth are half-opened from the moving image content are described in, for example, Japanese Patent Application Laid-Open No. 2003-228620, and thus description thereof is omitted here.
  • step S7000 the image determination unit 522 determines one representative image from the remaining candidate images. If there is no candidate image, the image determination unit 522 may determine the image at the operation time as a representative image, or widen the processing target range and re-execute the processes in steps S5000 to S7000.
  • step S8000 the control part 520 performs the process corresponding to the performed predetermined operation.
  • the predetermined operation that has been performed is a pause operation
  • the control unit 520 continues to the representative image for which the moving image reproduction has been determined and then temporarily stops the display so that the representative image is displayed.
  • the control unit 520 starts the moving image reproduction from the position of the representative image being displayed, for example.
  • control unit 520 ends the series of processes.
  • the content reproduction apparatus 100 determines, as a representative image, an image that is not blurred and has a person's eyes and mouth that are not half-opened from a predetermined range based on the operation time. Can do.
  • the content reproduction apparatus 100 uses, as a representative image, a blurred image or an image in which a person's eyes and mouth are half open during a predetermined operation such as a pause. It can be prevented from being determined. That is, it is possible to prevent the display of an image having a content that is not suitable for showing to a third party or an image having a content that is not suitable for viewing. Therefore, the content reproduction apparatus 100 allows the user to comfortably perform the operation without hesitation of a third party, and thus can improve the operation comfort.
  • Embodiment 2 of the present invention is an example in which an image at a time as close as possible to the operation time is determined as a representative image from the same scenes as the operation time scene.
  • Content playback apparatus 100 according to the present embodiment has the same configuration as content playback apparatus 100 of Embodiment 1, but the operation of control unit 520 is different.
  • FIG. 3 is a flowchart showing the overall operation of the content reproduction apparatus 100 according to the present embodiment, and corresponds to FIG. 2 of the first embodiment. The same steps as those in FIG. 2 are denoted by the same step numbers, and description thereof will be omitted.
  • step S4100 a range obtained by excluding a scene different from the scene at the operation time (hereinafter referred to as “another scene”) from the processing target range is set as the processing target range. This will be decided. Then, the process proceeds to step S5000.
  • the range determination unit 521 detects a scene switching position from the moving image content. Then, the range determining unit 521 excludes the range before the most recent switching position before the operation time and the range after the most recent switching position after the operation time as separate scenes from the processing target range.
  • the scene switching position refers to a moment when the content of the image changes greatly, for example, a position where the program is switched to CM (commercial message) or a position where the video is switched from the studio video to the relay destination video in the news program.
  • CM commercial message
  • the details of the method for detecting the scene switching position from the moving image content are described in, for example, Japanese Patent Application Laid-Open No. 2004-133830, and thus the description thereof is omitted here.
  • FIG. 4 is a schematic diagram showing a state where another scene is excluded.
  • the range determination unit 521 excludes the scenes A and C, which are different scenes, and determines only the range of the scene B as the final processing target range 613.
  • the content reproduction apparatus 100 can further improve the comfort of operation by excluding such another scene.
  • step S7100 an image with speech sound (hereinafter referred to as “image with sound”) is further extracted from the candidate images. exclude.
  • the image determination unit 522 detects a range in which the speech sound is included from the sound of the moving image content, and excludes the image in the detected range from the candidate images. Then, the image determination unit 522 excludes the range before the most recent switching position before the operation time and the range after the most recent switching position after the operation time from the processing target range. Details of the detection method of the range accompanied by the utterance voice from the moving image content are described in, for example, Patent Document 5, and thus the description thereof is omitted here.
  • FIG. 5 is a schematic diagram showing a state of exclusion of an image with sound.
  • the processing target range 622 is determined based on the operation time 621 of the pause operation.
  • a plurality of candidate images 623 and a section 624 having a speech sound exist in the processing target range 622.
  • the image determination unit 522 excludes candidate images 2, 4, and 6 that are images with sound and leaves candidate images 1, 3, and 5 that are not images with sound as candidate images.
  • the content reproduction apparatus 100 can always reproduce the speech sound from the beginning by excluding the image with sound as described above. Thereby, the content reproduction apparatus 100 does not require the user to worry about the operation timing in relation to the uttered voice, and can further improve the operation comfort.
  • the operation time 621 is performed in the processing target range 622 in the section 624 where the uttered speech is present, and the candidate images (here, candidate images 1, 3 and 3 are included) before the start of the uttered speech. )
  • the candidate images after the operation time 621 may be further excluded. Thereby, the user can listen to the content of the uttered voice when the operation time 621 is performed.
  • step S7200 of FIG. 3 the image determination unit 522 determines an image closer to the operation time among the candidate images as a representative image, and proceeds to step S8000. For example, as described in the example of FIG. 5, when candidate images after the operation time are excluded, the image determination unit 522 selects the image of the latest time among the remaining candidate images (in FIG. 5). In the example, the candidate image 3) is determined as a representative image. As a result, the content playback apparatus 100 can minimize the number of sections that are played back repeatedly when playback is resumed, while ensuring ease of listening to the uttered voice.
  • the content reproduction apparatus 100 can determine, as a representative image, an image that is not only good in image quality but also easy to hear speech during reproduction and has high temporal closeness to the operation time. it can.
  • an image of a scene different from the scene at the operation time is determined as the representative image. Can be prevented. Moreover, according to the content reproduction apparatus 100 which concerns on this Embodiment, it can prevent that an image with an audio
  • the content playback apparatus 100 allows the user to perform an operation without worrying about the presence or absence of scene switching or the presence or absence of uttered speech, thereby further improving operational comfort.
  • Content playback apparatus 100 As a third embodiment of the present invention, a content reproduction apparatus 100 corresponding to various specific operations will be described.
  • Content playback apparatus 100 according to the present embodiment has the same configuration as content playback apparatus 100 of Embodiment 1, but the operation of control unit 520 is different.
  • operations input by the content reproduction apparatus 100 include a pause operation, a pause release operation, a stop operation, a designated reproduction operation, and a designation operation for content reproduction.
  • the designated reproduction operation is an operation for displaying a list of moving image contents or thumbnails indicating respective positions in the moving image content.
  • the designation operation is an operation for designating one of the thumbnails displayed in a list and instructing reproduction of the moving image content indicated by the designated thumbnail or the portion after the position of the moving image content.
  • FIG. 6 is a flowchart showing the overall operation of the content reproduction apparatus 100 according to the present embodiment, and corresponds to FIG. 2 of the first embodiment and FIG. 3 of the second embodiment.
  • the same parts as those in FIGS. 2 and 3 are denoted by the same step numbers, and description thereof will be omitted.
  • Control unit 520 first determines whether or not a pause operation has been performed in step S2100 after starting the reproduction of the moving image content (S1000). If a pause operation is performed (S2100: YES), control unit 520 proceeds to step S2200. In addition, when the pause operation is not performed (S2100: NO), control unit 520 proceeds to step S2300.
  • control unit 520 executes a pause process and proceeds to step S3000.
  • the temporary stop process will be described later.
  • step 2300 the control unit 520 determines whether or not a stop operation has been performed. If a stop operation is performed (S2300: YES), control unit 520 proceeds to step S2400 and executes a stop process. The stop process will be described later. In addition, when the stop operation is not performed (S2300: NO), control unit 520 proceeds to step S3000 as it is.
  • step S2500 control unit 520 determines whether or not a designated reproduction operation has been performed.
  • control unit 520 proceeds to step S2600, executes the designated reproduction process, and proceeds to step S3000.
  • the designated reproduction process will be described later. Further, when the designated reproduction operation is not performed (S2500: NO), control unit 520 proceeds to step S3000 as it is.
  • the content reproduction apparatus 100 can execute a pause process, a stop process, and a designated reproduction process according to the performed operation.
  • FIG. 7 is a flowchart showing the pause process.
  • the range determining unit 521 selects a predetermined range based on the operation time as a processing target range.
  • a processing target range For example, a section from the moment when the pause operation is performed to 0.5 seconds later is set as the processing target range.
  • control unit 520 executes the processing of steps S4100 to S7200 in FIG. 3, and in step S8110, continues to play the moving image content up to the determined representative image, and then pauses in a state where the representative image is displayed.
  • FIG. 8 is a schematic diagram showing a state of excluding another scene in the pause processing.
  • the range determination unit 521 excludes the scene B, which is another scene, and determines only the range after the operation time 711 in the scene A as the final processing target range 713.
  • FIG. 9 is a schematic diagram showing a state in which an image with sound is excluded in the pause process.
  • the processing target range 722 is determined based on the operation time 721 of the pause operation. It is assumed that there are a plurality of candidate images 723 and a section (sounded section) 724 where the uttered speech is present in the processing target range 722.
  • the image determination unit 522 excludes the candidate image 1 that is an image with sound and leaves the candidate images 2 and 3 that are not images with sound as candidate images. Since candidate image 2 is closer to operation time 721 than candidate image 3, it is determined to be a representative image.
  • step S8120 in FIG. 7 the control unit 520 determines whether a still image extraction operation has been performed.
  • the still image cut-out operation is an operation for cutting out a still image from the moving image content, and is, for example, an operation of selecting a predetermined menu item or pressing an option button. If the still image cutting operation has not been performed (S8120: NO), control unit 520 proceeds to step S8130. Control unit 520 proceeds to step S8140 when a still image cutting operation is performed (S8120: YES).
  • step S8130 control unit 520 determines whether or not a temporary stop release operation has been performed. When the suspension release operation is not performed (S8130: NO), the control unit 520 returns to step S8120, and when the suspension release operation is performed (S8130: YES), the control unit 520 proceeds to step S8150.
  • step S8150 the control unit 520 starts reproduction of the moving image content from the position of the representative image.
  • the range determination unit 521 selects a predetermined range based on the operation time as the processing target range.
  • a predetermined range based on the operation time for example, a section up to 1 second before and after the moment when the pause operation is performed (pause time) is set as the processing target range.
  • control unit 520 performs the processing of steps S4100 to S6000 in FIG. 3 to narrow down candidate images.
  • step S8160 the image determination unit 522 displays a list of one or more candidate images that have been narrowed down as representative images.
  • step S 8170 the image determination unit 522 receives designation from the user for one or more representative images displayed as a list. Then, when a designation operation is performed on any of the representative images (S8170: YES), the image determination unit 522 proceeds to step S8180.
  • step S8180 the control unit 520 accumulates and stores all designated representative images, and starts playing the moving image content from the representative image displayed in step S8110, for example.
  • the content reproduction apparatus 100 displays an image suitable for viewing in the vicinity of the operation time as a representative image during the pause operation, accepts the user's selection, and selects the selected representative. Images can be cut out and stored. That is, when the user tries to cut out and record an image suitable for viewing, it is possible to save the trouble of searching for the image while checking the image frame by frame.
  • FIG. 10 is a flowchart showing the stop process.
  • the range determining unit 521 selects a predetermined range based on the operation time as a processing target range.
  • a processing target range for example, a section of 1 second before the moment when the stop operation is performed is set as the processing target range.
  • control unit 520 executes the processing of steps S4100 to S7200 in FIG. 3, stores the determined representative image in step S8310, and stops the reproduction of the moving image content.
  • FIG. 11 is a schematic diagram showing a state of exclusion of another scene in the stop process.
  • the range determination unit 521 excludes the scene A, which is another scene, and determines only the range before the operation time 731 in the scene B as the final processing target range 733.
  • FIG. 12 is a schematic diagram showing a state of exclusion of an image with sound in the stop process.
  • the processing target range 742 is determined based on the operation time 741 of the stop operation. Then, it is assumed that a plurality of candidate images 743 and a section (sound section) 744 in which uttered speech is present exist in the processing target range 742. In this case, the image determination unit 522 excludes the candidate image 3 that is an image with sound and leaves the candidate images 1 and 2 that are not images with sound as candidate images. Since candidate image 2 is closer to operation time 741 than candidate image 1, it is determined as a representative image.
  • the content reproduction apparatus 100 can store a representative image suitable for viewing at the time of a stop operation, and can be used for a thumbnail or the like.
  • FIG. 13 is a flowchart showing the designated playback process.
  • control unit 520 displays a list of representative images stored and stored on the content list screen.
  • This representative image is, for example, a representative image stored in a past stop process.
  • step S2620 the control unit 520 receives a designation for the representative image displayed as a list from the user, and when a designation operation is performed on any of the representative images (S2620: YES), the process proceeds to step S2630.
  • control unit 520 starts reproduction of the moving image content from the position of the representative image.
  • the content playback apparatus 100 can display a list of representative images suitable for viewing and resume playback of moving image content from the representative images.
  • the user can easily grasp how far he / she has viewed the previous time because images suitable for viewing are displayed as thumbnails of a list of past stop positions.
  • an image suitable for viewing can be used as a representative image corresponding to various operations related to reproduction of moving image content.
  • the content reproduction device, content reproduction method, and content reproduction program according to the present invention are useful as a content reproduction device, a content reproduction method, and a content reproduction program that can improve the comfort of operation.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Human Computer Interaction (AREA)
  • Television Signal Processing For Recording (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)

Abstract

Provided is a content playback apparatus, wherein operation thereof can be done more comfortably. The content playback apparatus (100) comprises a playback unit (510) for playing video content; and a control unit (520) for inputting operations related to the playing of the video content, and controlling the playing of the video content according to the operation inputted. The control unit (520) comprises: a range determining unit (521) for determining, under the condition that a prescribed operation has been executed, a prescribed time range using the timing that the operation was executed as a reference point; and an image determining unit (522) for determining, from within the determined time range, an image that is not blurred, and wherein the eyes and mouths of characters therein are not half-open, as a representative image of the video content.

Description

コンテンツ再生装置、コンテンツ再生方法、およびコンテンツ再生プログラムContent reproduction apparatus, content reproduction method, and content reproduction program
　本発明は、動画コンテンツの再生を行うコンテンツ再生装置、コンテンツ再生方法、およびコンテンツ再生プログラムに関する。 The present invention relates to a content reproduction apparatus, a content reproduction method, and a content reproduction program for reproducing moving image content.
　従来、動画コンテンツの再生を行うコンテンツ再生装置では、動画再生に対する一時停止または停止の操作が行われたときに、その操作時刻に再生されていた画像を、動画コンテンツの代表画像として表示することが行われている。これにより、ユーザは、再生が再開される箇所の動画コンテンツの内容を、再生に先立って確認することができる。 2. Description of the Related Art Conventionally, in a content playback apparatus that plays back video content, when a pause or stop operation for video playback is performed, an image that was played back at the operation time can be displayed as a representative image of the video content. Has been done. Thereby, the user can confirm the content of the moving image content where the reproduction is resumed prior to the reproduction.
　ところが、代表画像の画質が悪い場合、動画コンテンツの内容を確認することが困難となる。そこで、特許文献１に記載の装置は、一時停止操作が行われたときに、その操作時刻の画像に代えて、時間的に最も近い高解像度の画像を代表画像に決定する。これにより、ユーザは、動画コンテンツの内容をより確実に確認することができる。 However, if the image quality of the representative image is poor, it is difficult to confirm the content of the moving image content. Therefore, when a pause operation is performed, the apparatus described in Patent Document 1 determines the closest high-resolution image as a representative image instead of the image at the operation time. Thereby, the user can confirm the content of moving image content more reliably.
特開平１１－３３１７５４号公報JP-A-11-331754 特開平１１－１３６５５７号公報Japanese Patent Laid-Open No. 11-136557 特開２００５－５６１７５号公報JP 2005-56175 A 特開平８－３３１５０４号公報JP-A-8-331504 国際公開第１９９８／０４１９７８号International Publication No. 1998/041978
　ところで、一時停止操作が行われた場合、代表画像は、再生再開の操作が行われるまでディスプレイ等に表示されたままの状態となる。また、停止操作が行われた場合、代表画像は、動画コンテンツまたは動画コンテンツ中の各位置を示すサムネイルとして、ディスプレイ等に繰り返し表示され続けることになる。すなわち、代表画像は、コンテンツ再生の操作に際して、第三者や操作者の目にさらされる機会が多い。したがって、代表画像は、第三者や操作者が見るのに相応しい内容の画像や、鑑賞に適する内容の画像であることが望ましい。 By the way, when a pause operation is performed, the representative image remains displayed on the display or the like until an operation to resume playback is performed. When the stop operation is performed, the representative image is continuously displayed on the display or the like as the moving image content or a thumbnail indicating each position in the moving image content. That is, the representative image has many opportunities to be exposed to the eyes of a third party or an operator when content is played back. Therefore, the representative image is desirably an image having contents suitable for viewing by a third party or an operator or an image having contents suitable for viewing.
　しかしながら、特許文献１記載の装置は、画質に配慮した代表画像決定を行うのみである。したがって、人物の目や口が半開きであったり、画面の一部、または全体がぼけている画像が代表画像に決定されることがある。すなわち、第三者や操作者が見るのに相応しくない画像や、観賞に適さない内容の画像が表示され続けてしまうことがあるのは避けられない。これを避けるためには動画の内容を慎重に確認してタイミングを図りながら一時停止操作や停止操作を行わなければならない。しかし、この操作をユーザが確実に行うことは非常に困難である。 However, the apparatus described in Patent Document 1 only performs representative image determination in consideration of image quality. Therefore, an image in which a person's eyes and mouth are half open or a part or the whole of the screen is blurred may be determined as the representative image. In other words, it is inevitable that an image that is not suitable for viewing by a third party or an operator or an image that is not suitable for viewing will continue to be displayed. In order to avoid this, it is necessary to perform a pause operation or a stop operation while carefully checking the content of the moving image and timing it. However, it is very difficult for the user to reliably perform this operation.
　本発明の目的は、操作の快適性を向上させることができるコンテンツ再生装置、コンテンツ再生方法、およびコンテンツ再生プログラムを提供することである。 An object of the present invention is to provide a content playback device, a content playback method, and a content playback program that can improve the comfort of operation.
　本発明のコンテンツ再生装置は、動画コンテンツを再生する再生部と、前記動画コンテンツの再生に関する操作を入力し、前記操作に応じて前記動画コンテンツの再生を制御する制御部とを有し、前記制御部は、所定の操作が行われたことを条件として、その操作時刻を基準とする所定の範囲を決定する範囲決定部と、決定された前記範囲の中から、ぼけておらず、かつ、人物の目および口が半開きとなっていない画像を、前記動画コンテンツの代表画像に決定する画像決定部と、を有する。 The content playback apparatus of the present invention includes a playback unit that plays back video content, and a control unit that inputs an operation related to playback of the video content and controls playback of the video content according to the operation. The section includes a range determination unit that determines a predetermined range based on the operation time on the condition that a predetermined operation has been performed, a person who is not blurred from the determined range, and is a person An image determining unit that determines an image whose eyes and mouth are not half-opened as a representative image of the moving image content.
　本発明のコンテンツ再生方法は、動画コンテンツを再生するステップと、前記動画コンテンツの再生に関する操作を入力するステップと、所定の操作が行われたことを条件として、その操作時刻を基準とする所定の範囲を決定するステップと、決定した前記範囲の中から、ぼけておらず、かつ、人物の目および口が半開きとなっていない画像を、前記動画コンテンツの代表画像に決定するステップとを有する。 The content reproduction method of the present invention includes a step of reproducing moving image content, a step of inputting an operation related to reproduction of the moving image content, and a predetermined operation based on the operation time on condition that the predetermined operation has been performed. A step of determining a range; and a step of determining, from the determined range, an image that is not blurred and has a person's eyes and mouth that are not half-opened as a representative image of the moving image content.
　本発明のコンテンツ再生プログラムは、コンピュータに、動画コンテンツを再生する処理と、前記動画コンテンツの再生に関する操作を入力する処理と、所定の操作が行われたことを条件として、その操作時刻を基準とする所定の範囲を決定する処理と、決定した前記範囲の中から、ぼけておらず、かつ、人物の目および口が半開きとなっていない画像を、前記動画コンテンツの代表画像に決定する処理とを実行させる。 The content reproduction program of the present invention is based on the operation time on the condition that a process for reproducing moving image content, a process for inputting an operation related to reproduction of the moving image content, and a predetermined operation are performed on a computer. A process for determining a predetermined range to be performed, and a process for determining, from the determined range, an image that is not blurred and whose eyes and mouth are not half-opened as a representative image of the video content Is executed.
　本発明によれば、操作時刻を基準としつつ、ぼけておらず、かつ、人物の目および口が半開きとなっていない画像を代表画像に決定することができる。これにより、本発明は、操作のタイミングや第三者の目を気にする必要がなくなり、操作の快適性を向上させることができる。 According to the present invention, it is possible to determine, as a representative image, an image that is not blurred and has a person's eyes and mouth that are not half-opened while using the operation time as a reference. As a result, the present invention eliminates the need to worry about the timing of the operation and the eyes of a third party, and can improve the comfort of the operation.
本発明の実施の形態１に係るコンテンツ再生装置の構成を示すブロック図1 is a block diagram showing a configuration of a content reproduction apparatus according to Embodiment 1 of the present invention. 本実施の形態１に係るコンテンツ再生装置の全体動作を示すフローチャートThe flowchart which shows the whole operation | movement of the content reproduction apparatus which concerns on this Embodiment 1. 本発明の実施の形態２に係るコンテンツ再生装置の全体動作を示すフローチャートThe flowchart which shows the whole operation | movement of the content reproduction apparatus which concerns on Embodiment 2 of this invention. 本実施の形態２における別シーンの除外の様子を示す模式図Schematic diagram showing how another scene is excluded in the second embodiment 本実施の形態２における音声付画像の除外の様子を示す模式図The schematic diagram which shows the mode of the exclusion of the image with a sound in this Embodiment 2. 本発明の実施の形態３に係るコンテンツ再生装置の全体動作を示すフローチャートThe flowchart which shows the whole operation | movement of the content reproduction apparatus which concerns on Embodiment 3 of this invention. 本実施の形態３における一時停止処理を示すフローチャートFlowchart showing the pause processing in the third embodiment 本実施の形態３の一時停止処理における別シーンの除外の様子を示す模式図The schematic diagram which shows the mode of the exclusion of another scene in the temporary stop process of this Embodiment 3. 本実施の形態３の一時停止処理における音声付画像の除外の様子を示す模式図The schematic diagram which shows the mode of the removal of the image with an audio | voice in the temporary stop process of this Embodiment 3. FIG. 本実施の形態３における停止処理を示すフローチャートThe flowchart which shows the stop process in this Embodiment 3. 本実施の形態３の停止処理における別シーンの除外の様子を示す模式図The schematic diagram which shows the mode of the exclusion of another scene in the stop process of this Embodiment 3. 本実施の形態３の停止処理における音声付画像の除外の様子を示す模式図The schematic diagram which shows the mode of the exclusion of the image with an audio | voice in the stop process of this Embodiment 3. FIG. 本実施の形態３における指定再生処理を示すフローチャートThe flowchart which shows the designated reproduction | regeneration processing in this Embodiment 3.
　以下、本発明の各実施の形態について、図面を参照して詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
　（実施の形態１）
　図１は、本発明の実施の形態１に係るコンテンツ再生装置の構成を示すブロック図である。コンテンツ再生装置１００は、例えば、動画コンテンツを録画再生するＤＶＤ（digital versatile disc）レコーダである。 (Embodiment 1)
FIG. 1 is a block diagram showing a configuration of a content reproduction apparatus according to Embodiment 1 of the present invention. The content playback apparatus 100 is, for example, a DVD (digital versatile disc) recorder that records and plays back video content.
　コンテンツ再生装置１００の記憶部２００は、例えばハードディスクドライブの所定のメモリ領域であり、動画コンテンツを記憶する。 The storage unit 200 of the content reproduction apparatus 100 is a predetermined memory area of a hard disk drive, for example, and stores moving image content.
　コンテンツ再生装置１００の入力部３００は、例えば複数のキースイッチを備えたリモートコントローラであり、コンテンツ再生装置１００に対する操作の入力を、ユーザから受け付ける。 The input unit 300 of the content reproduction apparatus 100 is a remote controller including a plurality of key switches, for example, and receives an operation input to the content reproduction apparatus 100 from the user.
　コンテンツ再生装置１００の出力部４００は、例えば液晶ディスプレイ装置であり、画像および音声を出力する。 The output unit 400 of the content reproduction device 100 is, for example, a liquid crystal display device, and outputs images and sound.
　コンテンツ再生装置１００のコンテンツ再生部５００は、例えばプロセッサおよびＲＡＭ（random access memory）等の記憶媒体から成り、制御プログラムをプロセッサが実行することにより、動画コンテンツの再生を行う。 The content playback unit 500 of the content playback device 100 includes, for example, a processor and a storage medium such as a RAM (random access memory), and the processor executes a control program to play back moving image content.
　コンテンツ再生部５００の再生部５１０は、記憶部２００から動画コンテンツを読み出し、所定のデコード処理を行って動画コンテンツの映像および音声を再生し、再生した映像および音声を出力部４００において出力させる。 The reproduction unit 510 of the content reproduction unit 500 reads the moving image content from the storage unit 200, performs predetermined decoding processing to reproduce the video and audio of the moving image content, and causes the output unit 400 to output the reproduced video and audio.
　コンテンツ再生部５００の制御部５２０は、動画コンテンツの再生に関する操作を入力部３００から入力し、入力した操作に応じて、再生部５１０における動画コンテンツの再生を制御する。 The control unit 520 of the content reproduction unit 500 inputs an operation related to reproduction of moving image content from the input unit 300, and controls reproduction of the moving image content in the reproduction unit 510 in accordance with the input operation.
　制御部５２０の範囲決定部５２１は、所定の操作が行われたことを条件として、その操作時刻を基準とする所定の範囲を、動画コンテンツの代表画像を決定する範囲（以下「処理対象範囲」という）に決定する。 The range determination unit 521 of the control unit 520 determines that a predetermined range based on the operation time is determined as a reference for the operation time (hereinafter, “processing target range”). Determined).
　制御部５２０の画像決定部５２２は、範囲決定部５２１が決定した処理対象範囲の中から、ぼけておらず、かつ、人物の目および口が半開きとなっていない画像を、動画コンテンツの代表画像に決定する。 The image determination unit 522 of the control unit 520 displays an image that is not blurred and has a person's eyes and mouth not half-opened from the processing target range determined by the range determination unit 521. To decide.
　代表画像の決定のトリガとなる上述の所定の操作は、例えば、動画再生に対する一時停止操作および停止操作である。そして、代表画像は、例えば、一時停止中に表示される画像や、動画コンテンツまたは動画コンテンツ中の各位置を示すサムネイルとして表示される。 The above-described predetermined operations that trigger the determination of the representative image are, for example, a pause operation and a stop operation for moving image playback. The representative image is displayed, for example, as an image displayed during the pause, or as a thumbnail indicating the moving image content or each position in the moving image content.
　このようなコンテンツ再生装置１００は、操作時刻を基準とする処理対象範囲から、ぼけておらず、かつ、人物の目および口が半開きとなっていない画像を、代表画像に決定する。したがって、コンテンツ再生装置１００によれば、ユーザは操作のタイミングや第三者の目を気にする必要がないため、より快適に操作を行うことができる。 Such a content reproduction apparatus 100 determines, as a representative image, an image that is not blurred and whose eyes and mouth are not half-opened from the processing target range based on the operation time. Therefore, according to the content reproduction apparatus 100, the user does not have to worry about the timing of the operation or the eyes of a third party, so that the operation can be performed more comfortably.
　次に、コンテンツ再生装置１００の動作について説明する。 Next, the operation of the content reproduction apparatus 100 will be described.
　図２は、コンテンツ再生装置１００の全体動作を示すフローチャートである。 FIG. 2 is a flowchart showing the overall operation of the content reproduction apparatus 100.
　まず、ステップＳ１０００において、制御部５２０は、ユーザ操作等を受けて、再生部５１０において、動画コンテンツの読み出しおよび再生を開始させる。 First, in step S1000, in response to a user operation or the like, the control unit 520 causes the playback unit 510 to start reading and playback of moving image content.
　そして、ステップＳ２０００において、制御部５２０は、所定の操作が行われたか否かを判断する。所定の操作は、例えば、動画再生に対する一時停止操作および停止操作である。制御部５２０は、所定の操作が行われていない場合には（Ｓ２０００：ＮＯ）、ステップＳ３０００へ進む。また、制御部５２０は、所定の操作が行われた場合には（Ｓ２０００：ＹＥＳ）、ステップＳ４０００へ進む。 In step S2000, control unit 520 determines whether or not a predetermined operation has been performed. The predetermined operation is, for example, a pause operation and a stop operation for moving image reproduction. If the predetermined operation is not performed (S2000: NO), control unit 520 proceeds to step S3000. Further, when a predetermined operation is performed (S2000: YES), control unit 520 proceeds to step S4000.
　ステップＳ３０００において、制御部５２０は、ユーザ操作等により処理の終了が指示されたか否かを判断し、処理の終了が指示されていない場合には（Ｓ３０００：ＮＯ）、ステップＳ２０００へ戻る。 In step S3000, the control unit 520 determines whether or not the end of the process is instructed by a user operation or the like. If the end of the process is not instructed (S3000: NO), the control unit 520 returns to step S2000.
　ステップＳ４０００において、範囲決定部５２１は、所定の操作が行われた操作時刻を基準とする所定の範囲を、処理対象範囲として選択する。範囲決定部５２１は、例えば、操作時刻の直後である、操作時刻から操作時刻の１秒後までの範囲を、処理対象範囲として選択する。 In step S4000, the range determination unit 521 selects a predetermined range based on the operation time at which the predetermined operation is performed as the processing target range. For example, the range determination unit 521 selects, as the processing target range, a range immediately after the operation time, from the operation time to 1 second after the operation time.
　そして、ステップＳ５０００において、画像決定部５２２は、範囲決定部５２１が決定した範囲の中から、ぼけていない画像、つまりピントが合っている画像を、代表画像の候補画像に設定する。具体的には、画像決定部５２２は、動画コンテンツからぼけている画像を検出し、検出した画像以外の画像を、候補画像に設定する。ぼけている画像の検出手法の詳細については、例えば特許文献２に記載されているため、ここでの説明を省略する。 In step S5000, the image determining unit 522 sets a non-blurred image, that is, an image in focus, as a representative image candidate image from the range determined by the range determining unit 521. Specifically, the image determination unit 522 detects a blurred image from the moving image content, and sets an image other than the detected image as a candidate image. The details of the method for detecting a blurred image are described in, for example, Japanese Patent Application Laid-Open No. 2003-228620, and thus the description thereof is omitted here.
　そして、ステップＳ６０００において、画像決定部５２２は、人物の目および口が半開きとなっている画像を、候補画像から除外する。具体的には、画像決定部５２２は、動画コンテンツから人物の目および口が半開きとなっている画像を検出し、検出した画像を候補画像から除外する。動画コンテンツからの人物の目および口が半開きとなっている画像の検出手法の詳細については、例えば特許文献３に記載されているため、ここでの説明を省略する。 And in step S6000, the image determination part 522 excludes the image in which the person's eyes and mouth are half-opened from the candidate images. Specifically, the image determination unit 522 detects an image in which a person's eyes and mouth are half-opened from the moving image content, and excludes the detected image from the candidate images. Details of a method for detecting an image in which a person's eyes and mouth are half-opened from the moving image content are described in, for example, Japanese Patent Application Laid-Open No. 2003-228620, and thus description thereof is omitted here.
　そして、ステップＳ７０００において、画像決定部５２２は、残っている候補画像の中から、代表画像を１つ決定する。なお、候補画像が存在しない場合には、画像決定部５２２は、操作時刻の画像を代表画像に決定するか、処理対象範囲を広げてステップＳ５０００～Ｓ７０００の処理を再実行しても良い。 In step S7000, the image determination unit 522 determines one representative image from the remaining candidate images. If there is no candidate image, the image determination unit 522 may determine the image at the operation time as a representative image, or widen the processing target range and re-execute the processes in steps S5000 to S7000.
　そして、ステップＳ８０００において、制御部５２０は、行われた所定の操作に対応する処理を行う。例えば、行われた所定の操作が一時停止操作である場合には、制御部５２０は、動画再生を決定した代表画像まで継続してから一時停止させ、代表画像が表示された状態にする。そして、更に一時停止解除の操作が行われたとき、制御部５２０は、例えば表示中の代表画像の位置から、動画再生を開始させる。 And in step S8000, the control part 520 performs the process corresponding to the performed predetermined operation. For example, when the predetermined operation that has been performed is a pause operation, the control unit 520 continues to the representative image for which the moving image reproduction has been determined and then temporarily stops the display so that the representative image is displayed. When the operation for canceling the pause is further performed, the control unit 520 starts the moving image reproduction from the position of the representative image being displayed, for example.
　そして、制御部５２０は、処理の終了が指示された場合には（Ｓ３０００：ＹＥＳ）、一連の処理を終了する。 Then, when the end of the process is instructed (S3000: YES), the control unit 520 ends the series of processes.
　このような動作により、コンテンツ再生装置１００は、操作時刻を基準とする所定の範囲から、ぼけておらず、かつ、人物の目および口が半開きとなっていない画像を、代表画像に決定することができる。 By such an operation, the content reproduction apparatus 100 determines, as a representative image, an image that is not blurred and has a person's eyes and mouth that are not half-opened from a predetermined range based on the operation time. Can do.
　以上説明したように、本実施の形態に係るコンテンツ再生装置１００は、一時停止等の所定の操作に際して、ぼけている画像、あるいは、人物の目および口が半開きとなっている画像が代表画像に決定されるのを防ぐことができる。すなわち、第三者に見せるのに相応しくないような内容の画像や、鑑賞に適さない内容の画像が表示され続けるのを防ぐことができる。したがって、コンテンツ再生装置１００は、ユーザに対し、第三者に気兼ねせずしかも快適に操作を行うことを可能にするので、操作の快適性を向上させることができる。 As described above, the content reproduction apparatus 100 according to the present embodiment uses, as a representative image, a blurred image or an image in which a person's eyes and mouth are half open during a predetermined operation such as a pause. It can be prevented from being determined. That is, it is possible to prevent the display of an image having a content that is not suitable for showing to a third party or an image having a content that is not suitable for viewing. Therefore, the content reproduction apparatus 100 allows the user to comfortably perform the operation without hesitation of a third party, and thus can improve the operation comfort.
　（実施の形態２）
　本発明の実施の形態２は、操作時刻のシーンと同じシーンの中から、操作時刻にできるだけ近い時刻の画像を代表画像に決定するようにした例である。本実施の形態に係るコンテンツ再生装置１００は、実施の形態１のコンテンツ再生装置１００と同一の構成を有しているが、制御部５２０の動作が異なる。 (Embodiment 2)
Embodiment 2 of the present invention is an example in which an image at a time as close as possible to the operation time is determined as a representative image from the same scenes as the operation time scene. Content playback apparatus 100 according to the present embodiment has the same configuration as content playback apparatus 100 of Embodiment 1, but the operation of control unit 520 is different.
　図３は、本実施の形態に係るコンテンツ再生装置１００の全体動作を示すフローチャートであり、実施の形態１の図２に対応するものである。図２と同一部分には同一ステップ番号を付し、これについての説明を省略する。 FIG. 3 is a flowchart showing the overall operation of the content reproduction apparatus 100 according to the present embodiment, and corresponds to FIG. 2 of the first embodiment. The same steps as those in FIG. 2 are denoted by the same step numbers, and description thereof will be omitted.
　範囲決定部５２１は、処理対象範囲を仮決定すると（Ｓ４０００）、ステップＳ４１００において、処理対象範囲から操作時刻のシーンとは異なるシーン（以下「別シーン」という）を除外した範囲を、処理対象範囲として本決定する。そして、処理は、ステップＳ５０００へ進む。 When the range determination unit 521 temporarily determines the processing target range (S4000), in step S4100, a range obtained by excluding a scene different from the scene at the operation time (hereinafter referred to as “another scene”) from the processing target range is set as the processing target range. This will be decided. Then, the process proceeds to step S5000.
　具体的には、範囲決定部５２１は、動画コンテンツからシーンの切り替え位置を検出する。そして、範囲決定部５２１は、操作時刻の前の直近の切り替え位置以前の範囲と、操作時刻の後の直近の切り替え位置以降の範囲を、別シーンとして、処理対象範囲から除外する。シーンの切り替え位置とは、例えば、番組からＣＭ（commercial message）へと切り替わる位置や、ニュース番組においてスタジオの映像から中継先の映像へと切り替わる位置等、画像の内容が大きく変わる瞬間を指す。動画コンテンツからのシーンの切り替え位置の検出手法の詳細については、例えば特許文献４に記載されているため、ここでの説明を省略する。 Specifically, the range determination unit 521 detects a scene switching position from the moving image content. Then, the range determining unit 521 excludes the range before the most recent switching position before the operation time and the range after the most recent switching position after the operation time as separate scenes from the processing target range. The scene switching position refers to a moment when the content of the image changes greatly, for example, a position where the program is switched to CM (commercial message) or a position where the video is switched from the studio video to the relay destination video in the news program. The details of the method for detecting the scene switching position from the moving image content are described in, for example, Japanese Patent Application Laid-Open No. 2004-133830, and thus the description thereof is omitted here.
　図４は、別シーンの除外の様子を示す模式図である。 FIG. 4 is a schematic diagram showing a state where another scene is excluded.
　図４に示すように、所定の操作として一時停止操作が行われ、その操作時刻６１１の２秒前から操作時刻６１１の４秒後までの範囲が、仮の処理対象範囲６１２と決定されたとする。そして、この処理対象範囲６１２において、シーンＡ、シーンＢ、シーンＣがこの順序で続いており、操作時刻６１１はシーンＢに含まれていたとする。この場合、範囲決定部５２１は、別シーンであるシーンＡおよびシーンＣを除外して、シーンＢの範囲のみを、最終的な処理対象範囲６１３に決定する。 As illustrated in FIG. 4, it is assumed that a temporary stop operation is performed as a predetermined operation, and a range from 2 seconds before the operation time 611 to 4 seconds after the operation time 611 is determined as the temporary processing target range 612. . In this processing target range 612, scene A, scene B, and scene C continue in this order, and operation time 611 is included in scene B. In this case, the range determination unit 521 excludes the scenes A and C, which are different scenes, and determines only the range of the scene B as the final processing target range 613.
　一時停止操作を行った瞬間と異なるシーンの画像が、代表画像として表示されたり、再生の起点となったりすると、再生が再開される箇所の動画コンテンツの内容を把握し辛い。したがって、コンテンツ再生装置１００は、このような別シーンの除外を行うことにより、操作の快適性を更に向上させることができる。 ∙ When an image of a scene different from the moment when the pause operation is performed is displayed as a representative image or the starting point of playback, it is difficult to grasp the content of the video content where playback is resumed. Therefore, the content reproduction apparatus 100 can further improve the comfort of operation by excluding such another scene.
　また、画像決定部５２２は、候補画像からぼけている画像等を除外すると（Ｓ５０００、Ｓ６０００）、ステップＳ７１００において、更に、候補画像から、発話音声のある画像（以下「音声付画像」という）を除外する。 Further, when the image determining unit 522 excludes a blurred image from the candidate images (S5000, S6000), in step S7100, an image with speech sound (hereinafter referred to as “image with sound”) is further extracted from the candidate images. exclude.
　具体的には、画像決定部５２２は、動画コンテンツの音声から発話音声が含まれている範囲を検出し、検出した範囲の画像を、候補画像から除外する。そして、画像決定部５２２は、操作時刻の前の直近の切り替え位置以前の範囲と、操作時刻の後の直近の切り替え位置以降の範囲を、処理対象範囲から除外する。動画コンテンツからの発話音声が付随している範囲の検出手法の詳細については、例えば特許文献５に記載されているため、ここでの説明を省略する。 Specifically, the image determination unit 522 detects a range in which the speech sound is included from the sound of the moving image content, and excludes the image in the detected range from the candidate images. Then, the image determination unit 522 excludes the range before the most recent switching position before the operation time and the range after the most recent switching position after the operation time from the processing target range. Details of the detection method of the range accompanied by the utterance voice from the moving image content are described in, for example, Patent Document 5, and thus the description thereof is omitted here.
　図５は、音声付画像の除外の様子を示す模式図である。 FIG. 5 is a schematic diagram showing a state of exclusion of an image with sound.
　図５に示すように、一時停止操作の操作時刻６２１を基準として、処理対象範囲６２２が決定されたとする。そして、この処理対象範囲６２２に、複数の候補画像６２３と、発話音声のある区間６２４とが存在しているものとする。この場合、画像決定部５２２は、音声付画像である候補画像２、４、６を除外して、音声付画像ではない候補画像１、３、５を候補画像として残す。 As shown in FIG. 5, it is assumed that the processing target range 622 is determined based on the operation time 621 of the pause operation. In addition, it is assumed that a plurality of candidate images 623 and a section 624 having a speech sound exist in the processing target range 622. In this case, the image determination unit 522 excludes candidate images 2, 4, and 6 that are images with sound and leaves candidate images 1, 3, and 5 that are not images with sound as candidate images.
　途中から再生された発話音声は、聞き取り辛い。コンテンツ再生装置１００は、このような音声付画像の除外を行うことにより、発話音声の再生を常に最初から行う事ができる。これにより、コンテンツ再生装置１００は、ユーザが発話音声との関係で操作タイミングを気にする必要がなくなり、操作の快適性を更に向上させることができる。 Talk speech played from the middle is difficult to hear. The content reproduction apparatus 100 can always reproduce the speech sound from the beginning by excluding the image with sound as described above. Thereby, the content reproduction apparatus 100 does not require the user to worry about the operation timing in relation to the uttered voice, and can further improve the operation comfort.
　なお、図５に示すように、処理対象範囲６２２に、操作時刻６２１が発話音声のある区間６２４に行われ、かつ、その発話音声の開始よりも前に候補画像（ここでは候補画像１、３）が存在する場合には、操作時刻６２１以降の候補画像（ここでは候補画像５）を更に除外しても良い。これにより、ユーザは、操作時刻６２１が行われたときの発話音声の内容を聞き取ることが可能となる。 As shown in FIG. 5, the operation time 621 is performed in the processing target range 622 in the section 624 where the uttered speech is present, and the candidate images (here, candidate images 1, 3 and 3 are included) before the start of the uttered speech. ) Exists, the candidate images after the operation time 621 (here, candidate image 5) may be further excluded. Thereby, the user can listen to the content of the uttered voice when the operation time 621 is performed.
　そして、図３のステップＳ７２００において、画像決定部５２２は、候補画像のうち、操作時刻により近い画像を、代表画像に決定して、ステップＳ８０００へ進む。例えば、図５の例で説明したように、操作時刻以降の候補画像を除外している場合には、画像決定部５２２は、残っている候補画像のうち、最も遅い時刻の画像（図５の例では候補画像３）を、代表画像に決定する。これにより、コンテンツ再生装置１００は、発話音声の聞き取り易さを確保しつつ、再生再開時に重複して再生される区間を最小に抑えることができる。 Then, in step S7200 of FIG. 3, the image determination unit 522 determines an image closer to the operation time among the candidate images as a representative image, and proceeds to step S8000. For example, as described in the example of FIG. 5, when candidate images after the operation time are excluded, the image determination unit 522 selects the image of the latest time among the remaining candidate images (in FIG. 5). In the example, the candidate image 3) is determined as a representative image. As a result, the content playback apparatus 100 can minimize the number of sections that are played back repeatedly when playback is resumed, while ensuring ease of listening to the uttered voice.
　このような処理により、コンテンツ再生装置１００は、画質的に良好なだけでなく、再生時に発話音声が聞き取り易く、操作時刻との時間的な密接度が高い画像を、代表画像に決定することができる。 Through such processing, the content reproduction apparatus 100 can determine, as a representative image, an image that is not only good in image quality but also easy to hear speech during reproduction and has high temporal closeness to the operation time. it can.
　このように、本実施の形態に係るコンテンツ再生装置１００によれば、処理対象範囲の中でシーンの切り替わりがあったときに、操作時刻のシーンとは異なるシーンの画像が代表画像として決定されるのを防ぐことができる。また、本実施の形態に係るコンテンツ再生装置１００によれば、音声付画像が代表画像として決定されるのを防ぐことができる。また、本実施の形態に係るコンテンツ再生装置１００によれば、操作時刻との時間的な密接な画像を、代表画像として決定することができる。 Thus, according to content reproduction apparatus 100 according to the present embodiment, when a scene is switched within the processing target range, an image of a scene different from the scene at the operation time is determined as the representative image. Can be prevented. Moreover, according to the content reproduction apparatus 100 which concerns on this Embodiment, it can prevent that an image with an audio | voice is determined as a representative image. Furthermore, according to content reproduction apparatus 100 according to the present embodiment, an image that is temporally closely related to the operation time can be determined as a representative image.
　したがって、コンテンツ再生装置１００は、ユーザに対し、シーンの切り替わりの有無や発話音声の有無を気にせずに操作を行うことを可能にするので、操作の快適性を更に向上させることができる。 Therefore, the content playback apparatus 100 allows the user to perform an operation without worrying about the presence or absence of scene switching or the presence or absence of uttered speech, thereby further improving operational comfort.
　（実施の形態３）
　本発明の実施の形態３として、具体的な各種操作に対応したコンテンツ再生装置１００について説明する。本実施の形態に係るコンテンツ再生装置１００は、実施の形態１のコンテンツ再生装置１００と同一の構成を有しているが、制御部５２０の動作が異なる。 (Embodiment 3)
As a third embodiment of the present invention, a content reproduction apparatus 100 corresponding to various specific operations will be described. Content playback apparatus 100 according to the present embodiment has the same configuration as content playback apparatus 100 of Embodiment 1, but the operation of control unit 520 is different.
　本実施の形態では、コンテンツ再生装置１００が入力する操作として、コンテンツ再生に対する一時停止操作、一時停止解除操作、停止操作、指定再生操作、および指定操作を含む。指定再生操作とは、動画コンテンツまたは動画コンテンツ中の各位置を示すサムネイルを一覧表示させる操作である。指定操作とは、一覧表示されたサムネイルのいずれかを指定し、指定したサムネイルが示す動画コンテンツまたは動画コンテンツの位置以降の部分の再生を指示する操作である。 In the present embodiment, operations input by the content reproduction apparatus 100 include a pause operation, a pause release operation, a stop operation, a designated reproduction operation, and a designation operation for content reproduction. The designated reproduction operation is an operation for displaying a list of moving image contents or thumbnails indicating respective positions in the moving image content. The designation operation is an operation for designating one of the thumbnails displayed in a list and instructing reproduction of the moving image content indicated by the designated thumbnail or the portion after the position of the moving image content.
　図６は、本実施の形態に係るコンテンツ再生装置１００の全体動作を示すフローチャートであり、実施の形態１の図２および実施の形態２の図３に対応するものである。図２および図３と同一部分には同一ステップ番号を付し、これについての説明を省略する。 FIG. 6 is a flowchart showing the overall operation of the content reproduction apparatus 100 according to the present embodiment, and corresponds to FIG. 2 of the first embodiment and FIG. 3 of the second embodiment. The same parts as those in FIGS. 2 and 3 are denoted by the same step numbers, and description thereof will be omitted.
　制御部５２０は、動画コンテンツの再生開始後（Ｓ１０００）、まず、ステップＳ２１００において、一時停止操作が行われたか否かを判断する。制御部５２０は、一時停止操作が行われた場合には（Ｓ２１００：ＹＥＳ）、ステップＳ２２００へ進む。また、制御部５２０は、一時停止操作が行われていない場合には（Ｓ２１００：ＮＯ）、ステップＳ２３００へ進む。 Control unit 520 first determines whether or not a pause operation has been performed in step S2100 after starting the reproduction of the moving image content (S1000). If a pause operation is performed (S2100: YES), control unit 520 proceeds to step S2200. In addition, when the pause operation is not performed (S2100: NO), control unit 520 proceeds to step S2300.
　ステップＳ２２００において、制御部５２０は、一時停止処理を実行して、ステップＳ３０００へ進む。一時停止処理については後述する。 In step S2200, control unit 520 executes a pause process and proceeds to step S3000. The temporary stop process will be described later.
　ステップ２３００において、制御部５２０は、停止操作が行われたか否かを判断する。制御部５２０は、停止操作が行われた場合には（Ｓ２３００：ＹＥＳ）、ステップＳ２４００へ進み、停止処理を実行する。停止処理については後述する。また、制御部５２０は、停止操作が行われていない場合には（Ｓ２３００：ＮＯ）、そのままステップＳ３０００へ進む。 In step 2300, the control unit 520 determines whether or not a stop operation has been performed. If a stop operation is performed (S2300: YES), control unit 520 proceeds to step S2400 and executes a stop process. The stop process will be described later. In addition, when the stop operation is not performed (S2300: NO), control unit 520 proceeds to step S3000 as it is.
　ステップＳ２５００において、制御部５２０は、指定再生操作が行われたか否かを判断する。制御部５２０は、指定再生操作が行われた場合には（Ｓ２５００：ＹＥＳ）、ステップＳ２６００へ進み、指定再生処理を実行して、ステップＳ３０００へ進む。指定再生処理については後述する。また、制御部５２０は、指定再生操作が行われていない場合には（Ｓ２５００：ＮＯ）、そのままステップＳ３０００へ進む。 In step S2500, control unit 520 determines whether or not a designated reproduction operation has been performed. When the designated reproduction operation is performed (S2500: YES), control unit 520 proceeds to step S2600, executes the designated reproduction process, and proceeds to step S3000. The designated reproduction process will be described later. Further, when the designated reproduction operation is not performed (S2500: NO), control unit 520 proceeds to step S3000 as it is.
　このような動作により、コンテンツ再生装置１００は、行われた操作に応じて、一時停止処理、停止処理、および指定再生処理を、実行することができる。 By such an operation, the content reproduction apparatus 100 can execute a pause process, a stop process, and a designated reproduction process according to the performed operation.
　図７は、一時停止処理を示すフローチャートである。 FIG. 7 is a flowchart showing the pause process.
　まず、ステップＳ２２１０において、範囲決定部５２１は、操作時刻を基準とする所定の範囲を、処理対象範囲として選択する。ここでは、例えば、一時停止操作が行われた瞬間から０.５秒後までの区間が、処理対象範囲に設定される。 First, in step S2210, the range determining unit 521 selects a predetermined range based on the operation time as a processing target range. Here, for example, a section from the moment when the pause operation is performed to 0.5 seconds later is set as the processing target range.
　そして、制御部５２０は、図３のステップＳ４１００～Ｓ７２００の処理を実行し、ステップＳ８１１０において、決定された代表画像まで動画コンテンツの再生を継続した後、代表画像を表示した状態で一時停止する。 Then, the control unit 520 executes the processing of steps S4100 to S7200 in FIG. 3, and in step S8110, continues to play the moving image content up to the determined representative image, and then pauses in a state where the representative image is displayed.
　図８は、一時停止処理における別シーンの除外の様子を示す模式図である。 FIG. 8 is a schematic diagram showing a state of excluding another scene in the pause processing.
　図８に示すように、一時停止操作の操作時刻７１１以降の０.５秒間が、仮の処理対象範囲７１２と決定されたとする。そして、この処理対象範囲７１２において、シーンＡ、シーンＢがこの順序で続いており、操作時刻７１１はシーンＡに含まれていたとする。この場合、範囲決定部５２１は、別シーンであるシーンＢを除外して、シーンＡのうち操作時刻７１１以降の範囲のみを、最終的な処理対象範囲７１３として決定する。 As shown in FIG. 8, it is assumed that 0.5 seconds after the operation time 711 of the pause operation is determined as the provisional processing target range 712. In this processing target range 712, scene A and scene B continue in this order, and operation time 711 is included in scene A. In this case, the range determination unit 521 excludes the scene B, which is another scene, and determines only the range after the operation time 711 in the scene A as the final processing target range 713.
　図９は、一時停止処理における音声付画像の除外の様子を示す模式図である。 FIG. 9 is a schematic diagram showing a state in which an image with sound is excluded in the pause process.
　図９に示すように、一時停止操作の操作時刻７２１を基準として、処理対象範囲７２２が決定されたとする。そして、この処理対象範囲７２２に、複数の候補画像７２３と、発話音声のある区間（有音区間）７２４とが存在しているものとする。この場合、画像決定部５２２は、音声付画像である候補画像１を除外して、音声付画像ではない候補画像２、３を候補画像として残す。候補画像２は、候補画像３よりも操作時刻７２１に近いため、代表画像に決定されることになる。 As shown in FIG. 9, it is assumed that the processing target range 722 is determined based on the operation time 721 of the pause operation. It is assumed that there are a plurality of candidate images 723 and a section (sounded section) 724 where the uttered speech is present in the processing target range 722. In this case, the image determination unit 522 excludes the candidate image 1 that is an image with sound and leaves the candidate images 2 and 3 that are not images with sound as candidate images. Since candidate image 2 is closer to operation time 721 than candidate image 3, it is determined to be a representative image.
　そして、図７のステップＳ８１２０において、制御部５２０は、静止画切出操作が行われたか否かを判断する。静止画切出操作は、動画コンテンツに対する静止画の切り出しを行うための操作であり、例えば、所定のメニュー項目の選択やオプションボタンの押下の操作である。制御部５２０は、静止画切出操作が行なわれていない場合には（Ｓ８１２０：ＮＯ）、ステップＳ８１３０へ進む。また、制御部５２０は、静止画切出操作が行われた場合には（Ｓ８１２０：ＹＥＳ）、ステップＳ８１４０へ進む。 In step S8120 in FIG. 7, the control unit 520 determines whether a still image extraction operation has been performed. The still image cut-out operation is an operation for cutting out a still image from the moving image content, and is, for example, an operation of selecting a predetermined menu item or pressing an option button. If the still image cutting operation has not been performed (S8120: NO), control unit 520 proceeds to step S8130. Control unit 520 proceeds to step S8140 when a still image cutting operation is performed (S8120: YES).
　そして、ステップＳ８１３０において、制御部５２０は、一時停止解除操作が行われたか否かを判断する。制御部５２０は、一時停止解除操作が行われていない場合は（Ｓ８１３０：ＮＯ）、ステップＳ８１２０へ戻り、一時停止解除操作が行われた場合には（Ｓ８１３０：ＹＥＳ）、ステップＳ８１５０へ進む。 In step S8130, control unit 520 determines whether or not a temporary stop release operation has been performed. When the suspension release operation is not performed (S8130: NO), the control unit 520 returns to step S8120, and when the suspension release operation is performed (S8130: YES), the control unit 520 proceeds to step S8150.
　ステップＳ８１５０において、制御部５２０は、動画コンテンツの再生を、代表画像の位置から開始する。 In step S8150, the control unit 520 starts reproduction of the moving image content from the position of the representative image.
　一方、ステップＳ８１４０において、範囲決定部５２１は、操作時刻を基準とする所定の範囲を、処理対象範囲として選択する。ここでは、例えば、一時停止操作が行われた瞬間（一時停止時刻）の前後１秒後までの区間が、処理対象範囲に設定される。 On the other hand, in step S8140, the range determination unit 521 selects a predetermined range based on the operation time as the processing target range. Here, for example, a section up to 1 second before and after the moment when the pause operation is performed (pause time) is set as the processing target range.
　そして、制御部５２０は、図３のステップＳ４１００～Ｓ６０００の処理を実行し、候補画像の絞り込みを行う。 Then, the control unit 520 performs the processing of steps S4100 to S6000 in FIG. 3 to narrow down candidate images.
　そして、ステップＳ８１６０において、画像決定部５２２は、絞り込みが行われた１つまたは複数の候補画像を、代表画像として一覧表示する。 In step S8160, the image determination unit 522 displays a list of one or more candidate images that have been narrowed down as representative images.
　そして、ステップＳ８１７０において、画像決定部５２２は、一覧表示した１つまたは複数の代表画像に対する指定をユーザから受け付ける。そして、画像決定部５２２は、いずれかの代表画像に対する指定操作が行われると（Ｓ８１７０：ＹＥＳ）、ステップＳ８１８０へ進む。 In step S 8170, the image determination unit 522 receives designation from the user for one or more representative images displayed as a list. Then, when a designation operation is performed on any of the representative images (S8170: YES), the image determination unit 522 proceeds to step S8180.
　ステップＳ８１８０において、制御部５２０は、指定された全ての代表画像を蓄積して記憶すると共に、動画コンテンツの再生を、例えば、ステップＳ８１１０において表示した代表画像から開始する。 In step S8180, the control unit 520 accumulates and stores all designated representative images, and starts playing the moving image content from the representative image displayed in step S8110, for example.
　このような一時停止処理を実行することにより、コンテンツ再生装置１００は、一時停止操作時に、操作時刻の近辺の鑑賞に適した画像を代表画像として表示してユーザの選択を受け付け、選択された代表画像を切り出して記憶することができる。すなわち、ユーザが鑑賞に適した画像を切り出して記録しようとする際に、画像を１フレームずつ確認しながら画像を探す手間を省くことができる。 By executing such a pause process, the content reproduction apparatus 100 displays an image suitable for viewing in the vicinity of the operation time as a representative image during the pause operation, accepts the user's selection, and selects the selected representative. Images can be cut out and stored. That is, when the user tries to cut out and record an image suitable for viewing, it is possible to save the trouble of searching for the image while checking the image frame by frame.
　図１０は、停止処理を示すフローチャートである。 FIG. 10 is a flowchart showing the stop process.
　まず、ステップＳ２４１０において、範囲決定部５２１は、操作時刻を基準とする所定の範囲を、処理対象範囲として選択する。ここでは、例えば、停止操作が行われた瞬間の前１秒の区間が、処理対象範囲に設定される。 First, in step S2410, the range determining unit 521 selects a predetermined range based on the operation time as a processing target range. Here, for example, a section of 1 second before the moment when the stop operation is performed is set as the processing target range.
　そして、制御部５２０は、図３のステップＳ４１００～Ｓ７２００の処理を実行し、ステップＳ８３１０において、決定された代表画像を記憶して、動画コンテンツの再生を停止する。 Then, control unit 520 executes the processing of steps S4100 to S7200 in FIG. 3, stores the determined representative image in step S8310, and stops the reproduction of the moving image content.
　図１１は、停止処理における別シーンの除外の様子を示す模式図である。 FIG. 11 is a schematic diagram showing a state of exclusion of another scene in the stop process.
　図１１に示すように、停止操作の操作時刻７３１以前の１秒間が、仮の処理対象範囲７３２と決定されたとする。そして、この処理対象範囲７３２において、シーンＡ、シーンＢがこの順序で続いており、操作時刻７３１はシーンＢに含まれていたとする。この場合、範囲決定部５２１は、別シーンであるシーンＡを除外して、シーンＢのうち操作時刻７３１以前の範囲のみを、最終的な処理対象範囲７３３として決定する。 As shown in FIG. 11, it is assumed that one second before the operation time 731 of the stop operation is determined as the temporary processing target range 732. In this processing target range 732, it is assumed that the scene A and the scene B continue in this order, and the operation time 731 is included in the scene B. In this case, the range determination unit 521 excludes the scene A, which is another scene, and determines only the range before the operation time 731 in the scene B as the final processing target range 733.
　図１２は、停止処理における音声付画像の除外の様子を示す模式図である。 FIG. 12 is a schematic diagram showing a state of exclusion of an image with sound in the stop process.
　図１２に示すように、停止操作の操作時刻７４１を基準として、処理対象範囲７４２が決定されたとする。そして、この処理対象範囲７４２に、複数の候補画像７４３と、発話音声のある区間（有音区間）７４４とが存在しているものとする。この場合、画像決定部５２２は、音声付画像である候補画像３を除外して、音声付画像ではない候補画像１、２を候補画像として残す。候補画像２は、候補画像１よりも操作時刻７４１に近いため、代表画像に決定されることになる。 As shown in FIG. 12, it is assumed that the processing target range 742 is determined based on the operation time 741 of the stop operation. Then, it is assumed that a plurality of candidate images 743 and a section (sound section) 744 in which uttered speech is present exist in the processing target range 742. In this case, the image determination unit 522 excludes the candidate image 3 that is an image with sound and leaves the candidate images 1 and 2 that are not images with sound as candidate images. Since candidate image 2 is closer to operation time 741 than candidate image 1, it is determined as a representative image.
　このような停止処理を実行することにより、コンテンツ再生装置１００は、停止操作時に、鑑賞に適した代表画像を記憶し、サムネイル等の用途に供することができる。 By executing such a stop process, the content reproduction apparatus 100 can store a representative image suitable for viewing at the time of a stop operation, and can be used for a thumbnail or the like.
　図１３は、指定再生処理を示すフローチャートである。 FIG. 13 is a flowchart showing the designated playback process.
　まず、ステップＳ２６１０において、制御部５２０は、蓄積して保存した代表画像を、コンテンツ一覧画面に一覧表示する。この代表画像は、例えば、過去の停止処理において記憶された代表画像である。 First, in step S2610, control unit 520 displays a list of representative images stored and stored on the content list screen. This representative image is, for example, a representative image stored in a past stop process.
　そして、ステップＳ２６２０において、制御部５２０は、一覧表示した代表画像に対する指定をユーザから受け付け、いずれかの代表画像に対する指定操作が行われると（Ｓ２６２０：ＹＥＳ）、ステップＳ２６３０へ進む。 In step S2620, the control unit 520 receives a designation for the representative image displayed as a list from the user, and when a designation operation is performed on any of the representative images (S2620: YES), the process proceeds to step S2630.
　ステップＳ２６３０において、制御部５２０は、動画コンテンツの再生を、代表画像の位置から開始する。 In step S2630, control unit 520 starts reproduction of the moving image content from the position of the representative image.
　このような指定再生処理を実行することにより、コンテンツ再生装置１００は、鑑賞に適した代表画像を一覧表示して、代表画像から動画コンテンツの再生を再開することができる。すなわち、ユーザは、過去の停止位置の一覧のサムネイルとして、鑑賞に適した画像が表示されるので、前回どこまで視聴していたのかを容易に把握することができる。 By executing such designated playback processing, the content playback apparatus 100 can display a list of representative images suitable for viewing and resume playback of moving image content from the representative images. In other words, the user can easily grasp how far he / she has viewed the previous time because images suitable for viewing are displayed as thumbnails of a list of past stop positions.
　このように、本実施の形態によれば、動画コンテンツの再生に関する各種操作に対応して、鑑賞に適した画像を、代表画像として用いることができる。 As described above, according to the present embodiment, an image suitable for viewing can be used as a representative image corresponding to various operations related to reproduction of moving image content.
　２０１０年６月１５日出願の特願２０１０－１３６１７３の日本出願に含まれる明細書、図面および要約書の開示内容は、すべて本願に援用される。 The disclosure of the specification, drawings and abstract contained in the Japanese application of Japanese Patent Application No. 2010-136173 filed on June 15, 2010 is incorporated herein by reference.
　本発明に係るコンテンツ再生装置、コンテンツ再生方法、およびコンテンツ再生プログラムは、操作の快適性を向上させることができるコンテンツ再生装置、コンテンツ再生方法、およびコンテンツ再生プログラムとして有用である。 The content reproduction device, content reproduction method, and content reproduction program according to the present invention are useful as a content reproduction device, a content reproduction method, and a content reproduction program that can improve the comfort of operation.
　１００　コンテンツ再生装置
　２００　記憶部
　３００　入力部
　４００　出力部
　５００　コンテンツ再生部
　５１０　再生部
　５２０　制御部
　５２１　範囲決定部
　５２２　画像決定部
  DESCRIPTION OF SYMBOLS 100 Content reproduction apparatus 200 Storage part 300 Input part 400 Output part 500 Content reproduction part 510 Reproduction part 520 Control part 521 Range determination part 522 Image determination part

Claims (12)

  1. 　動画コンテンツを再生する再生部と、
    　前記動画コンテンツの再生に関する操作を入力し、前記操作に応じて前記動画コンテンツの再生を制御する制御部と、を有し、
    　前記制御部は、
    　所定の操作が行われたことを条件として、その操作時刻を基準とする所定の範囲を決定する範囲決定部と、
    　決定された前記範囲の中から、ぼけておらず、かつ、人物の目および口が半開きとなっていない画像を、前記動画コンテンツの代表画像に決定する画像決定部と、を有する、
    　コンテンツ再生装置。     A playback unit for playing back video content;
    A control unit that inputs an operation related to reproduction of the video content and controls the reproduction of the video content according to the operation;
    The controller is
    A range determination unit that determines a predetermined range based on the operation time on condition that a predetermined operation has been performed;
    An image determining unit that determines, from the determined range, an image that is not blurred and has a person's eyes and mouth that are not half-opened as a representative image of the video content,
    Content playback device.
  2. 　前記所定の操作は、前記動画コンテンツの再生に対する一時停止操作および停止操作の少なくとも１つを含む、
    　請求項１記載のコンテンツ再生装置。     The predetermined operation includes at least one of a pause operation and a stop operation for reproduction of the video content,
    The content reproduction apparatus according to claim 1.
  3. 　前記範囲決定部は、
    　前記操作時刻のシーンとは異なるシーンの画像を、前記代表画像に決定しない、
    　請求項１記載のコンテンツ再生装置。     The range determining unit
    An image of a scene different from the scene at the operation time is not determined as the representative image.
    The content reproduction apparatus according to claim 1.
  4. 　前記画像決定部は、
    　発話音声のある画像を、前記代表画像に決定しない、
    　請求項１記載のコンテンツ再生装置。     The image determination unit
    Do not determine an image with spoken voice as the representative image,
    The content reproduction apparatus according to claim 1.
  5. 　前記画像決定部は、
    　前記代表画像の候補が複数存在するとき、前記操作時刻により近い時刻の画像を、前記代表画像に決定する、
    　請求項１記載のコンテンツ再生装置。     The image determination unit
    When there are a plurality of representative image candidates, an image at a time closer to the operation time is determined as the representative image.
    The content reproduction apparatus according to claim 1.
  6. 　前記所定の操作は、前記動画コンテンツの再生に対する一時停止操作を含み、前記操作は、前記動画コンテンツの一時停止に対する解除操作を含み、
    　前記制御部は、
    　前記一時停止操作が行われたとき、前記動画コンテンツの再生を一時停止すると共に前記代表画像を表示し、前記解除操作が行われたとき、前記代表画像の位置から前記動画コンテンツの再生を再開する、
    　請求項１記載のコンテンツ再生装置。     The predetermined operation includes a pause operation for reproduction of the video content, and the operation includes a release operation for pause of the video content,
    The controller is
    When the pause operation is performed, the reproduction of the moving image content is paused and the representative image is displayed. When the release operation is performed, the reproduction of the moving image content is resumed from the position of the representative image. ,
    The content reproduction apparatus according to claim 1.
  7. 　前記範囲決定部は、
    　前記一時停止操作が行われたとき、前記操作時刻の直後の所定の範囲を、前記代表画像を決定する範囲として決定する、
    　請求項６記載のコンテンツ再生装置。     The range determining unit
    When the pause operation is performed, a predetermined range immediately after the operation time is determined as a range for determining the representative image.
    The content reproduction apparatus according to claim 6.
  8. 　前記操作は、前記動画コンテンツに対する静止画切出操作と、表示された１つまたは複数の画像の中から１つまたは複数を指定する指定操作とを含み、
    　前記制御部は、
    　前記静止画切出操作が行われたとき、前記代表画像を表示して前記指定操作を受け付け、指定された代表画像を記憶する、
    　請求項１記載のコンテンツ再生装置。     The operation includes a still image cutting operation for the moving image content, and a designation operation for designating one or a plurality of displayed one or a plurality of images,
    The controller is
    When the still image cut-out operation is performed, the representative image is displayed and the designation operation is accepted, and the designated representative image is stored.
    The content reproduction apparatus according to claim 1.
  9. 　前記所定の操作は、前記動画コンテンツの再生に対する停止操作を含み、前記操作は、表示された１つまたは複数の画像の中から１つを指定する指定操作を含み、
    　前記制御部は、
    　前記停止操作が行われたとき、前記動画コンテンツの再生を停止すると共に前記代表画像を蓄積して記憶し、記憶された代表画像を表示して前記指定操作を受け付け、指定された代表画像の位置から前記動画コンテンツを再生する、
    　請求項１記載のコンテンツ再生装置。     The predetermined operation includes a stop operation for reproduction of the moving image content, and the operation includes a designation operation for designating one of one or more displayed images,
    The controller is
    When the stop operation is performed, the reproduction of the moving image content is stopped, the representative image is accumulated and stored, the stored representative image is displayed, the designation operation is accepted, and the designated representative image position Play the video content from
    The content reproduction apparatus according to claim 1.
  10. 　前記所定の操作は、前記動画コンテンツの再生に対する一時停止操作および停止操作の少なくとも１つを含み、
    　前記範囲決定部は、
    　前記操作時刻の直後の所定の範囲を、前記代表画像を決定する範囲として決定し、
    　前記制御部は、
    　前記一時停止操作または前記停止操作が行われたとき、前記動画コンテンツの再生を、前記代表画像まで継続してから、一時停止または停止する、
    　請求項１記載のコンテンツ再生装置。     The predetermined operation includes at least one of a pause operation and a stop operation for reproduction of the video content,
    The range determining unit
    A predetermined range immediately after the operation time is determined as a range for determining the representative image,
    The controller is
    When the pause operation or the stop operation is performed, the reproduction of the video content is continued until the representative image, and then paused or stopped.
    The content reproduction apparatus according to claim 1.
  11. 　動画コンテンツを再生するステップと、
    　前記動画コンテンツの再生に関する操作を入力するステップと、
    　所定の操作が行われたことを条件として、その操作時刻を基準とする所定の範囲を決定するステップと、
    　決定した前記範囲の中から、ぼけておらず、かつ、人物の目および口が半開きとなっていない画像を、前記動画コンテンツの代表画像に決定するステップと、を有する、
    　コンテンツ再生方法。     Playing video content,
    Inputting an operation related to reproduction of the video content;
    Determining a predetermined range based on the operation time on condition that a predetermined operation has been performed;
    Determining from the determined range an image that is not blurred and has a person's eyes and mouth not fully open as a representative image of the video content,
    Content playback method.
  12. 　コンピュータに、
    　動画コンテンツを再生する処理と、
    　前記動画コンテンツの再生に関する操作を入力する処理と、
    　所定の操作が行われたことを条件として、その操作時刻を基準とする所定の範囲を決定する処理と、
    　決定した前記範囲の中から、ぼけておらず、かつ、人物の目および口が半開きとなっていない画像を、前記動画コンテンツの代表画像に決定する処理と、を実行させる、
    　コンテンツ再生プログラム。
          On the computer,
    Processing to play video content,
    A process of inputting an operation related to reproduction of the video content;
    A process for determining a predetermined range based on the operation time on condition that a predetermined operation has been performed;
    A process of determining an image that is not blurred and has a person's eyes and mouth not half-opened from the determined range as a representative image of the video content,
    Content playback program.
PCT/JP2011/001028 2010-06-15 2011-02-23 Content playback apparatus, content playback method, and content playback program WO2011158399A1 (en)

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