WO2011013660A1 - Dispositif d’affichage, programme et support de stockage lisible par ordinateur sur lequel est enregistré un programme - Google Patents

Dispositif d’affichage, programme et support de stockage lisible par ordinateur sur lequel est enregistré un programme Download PDF

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Publication number
WO2011013660A1
WO2011013660A1 PCT/JP2010/062616 JP2010062616W WO2011013660A1 WO 2011013660 A1 WO2011013660 A1 WO 2011013660A1 JP 2010062616 W JP2010062616 W JP 2010062616W WO 2011013660 A1 WO2011013660 A1 WO 2011013660A1
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Prior art keywords
information
video
image quality
display device
processing means
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PCT/JP2010/062616
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English (en)
Japanese (ja)
Inventor
秀人 八木澤
晃一 高久
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シャープ株式会社
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Publication of WO2011013660A1 publication Critical patent/WO2011013660A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • 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
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/84—Generation or processing of descriptive data, e.g. content descriptors
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0613—The adjustment depending on the type of the information to be displayed

Definitions

  • the present invention relates to a display device, a program, and a computer-readable storage medium on which the program is recorded.
  • Patent Literature 1 has been reported as a technique for correcting image quality, sound quality, and the like according to user's preference during program playback.
  • Patent Document 1 describes a playback apparatus that can perform playback with image quality and sound quality that suits user preferences for each genre of a program to be played.
  • Japanese Patent Publication Japanese Patent Laid-Open No. 2005-302119 (published on October 27, 2005)”
  • Patent Document 1 Since the technique described in Patent Document 1 sets image quality and sound quality based on information representing one genre, the image quality and sound quality cannot be finely corrected according to various programs as described above.
  • the present invention provides a display device capable of correcting image quality and sound quality in a finely compatible manner with the type of program.
  • the display device is a display device that receives and reproduces content, and obtains a plurality of type information indicating the type from the content, and each of the above types
  • a type information processing unit that acquires video correction information associated with the information, a plurality of the video correction information from the type information processing unit, and calculates one video correction information from the plurality of the video correction information.
  • a video processing means for correcting at least one of image quality and sound quality when the content is reproduced based on the calculated video correction information.
  • the video correction information is created based on the plurality of types of information, and the video is corrected by the video correction information. Therefore, video correction corresponding to the detailed type (genre) of the program can be performed. it can. Therefore, it is possible to correct the image quality and the sound quality correspondingly to the type of program.
  • the display device may be realized by a computer.
  • a program for realizing the content reproduction apparatus in the computer by causing the computer to operate as each of the above means and a computer-readable recording medium recording the program also fall within the scope of the present invention.
  • the display device is a display device that receives and plays back content, and obtains a plurality of type information indicating the type from the content and associates the type information with the type information.
  • a type information processing means for obtaining the received video correction information, a plurality of the video correction information from the type information processing means, and calculating one video correction information from the plurality of the video correction information.
  • video processing means for correcting at least one of image quality and sound quality when reproducing the content based on the video correction information, so that the image quality and sound quality can be corrected finely corresponding to the type of program.
  • FIG. 1 is a diagram schematically showing the configuration of the television receiver 10.
  • a television receiver 10 is an entire television receiver having a liquid crystal display device 22 (display means) having a screen size of 16: 9 (1920 ⁇ 1010 dots), for example.
  • the television receiver 10 includes a CPU 6 and a memory 7 connected to the bus 8, and the operation of the television receiver 10 is controlled by various control programs stored in the CPU 6 and the memory 7.
  • the television receiver shown in FIG. 1 is controlled by a computer system including a CPU 6, and a program for operating the television receiver by the computer system is stored in the memory 7.
  • the memory 7 is usually composed of a RAM, but may include a ROM in part. Further, a rewritable flash memory or the like may be included.
  • the memory 7 stores an OS for operating the CPU, various control software, and the like. Data relating to program information such as EPG data received via broadcast waves, and OSD necessary for performing OSD display Image data and the like are stored.
  • the memory 7 has a work area that functions as a work memory necessary for various control operations.
  • the memory 7 stores genre information, which will be described later, and an image quality correction coefficient in association with each other.
  • an equation for calculating an image quality correction coefficient from the brightness detected by the OPC (light) sensor 38 (environmental information acquisition means), a basic value of the image quality correction coefficient (basic image) that serves as a basis for image quality correction input in advance by the user. Correction information) is stored.
  • the television receiver 10 is provided with an analog tuner unit 12 in addition to the digital tuner unit 14 so that analog broadcasts can be received.
  • the external input unit 31 can be connected to various external devices 30 such as a solid-state memory such as an HDD and an SD card, and a disk device such as a BD (Blu-ray disc), DVD, and CD.
  • a BD / DVD / CD recording / reproducing unit 32 is also built in the main body of the apparatus 10.
  • an IP broadcast tuner unit 23 is provided, and IP broadcast reception is also possible.
  • the television receiver 10 includes an AV switch unit 13, a digital demodulation unit 15, a separation unit (DMUX) 16, a video decode / capture unit 17, a video selector unit 18, a video processing unit 19 (video processing means), and an addition circuit.
  • display control unit 21 liquid crystal display device 22, EPG / OSD / reservation processing unit 24, audio decoding unit 25, audio selector unit 26, audio output conversion unit 27, speaker 28, channel selection unit 33, communication control unit 34, remote control
  • a light receiving unit 35 is provided.
  • the television receiver 10 is further provided with an OPC sensor 38 for detecting ambient brightness.
  • the OPC sensor 38 is more preferably an illuminance sensor including a low pass filter. Thereby, temporary changes, such as a person passing in front of a sensor, can be relieved and illumination intensity can be acquired smoothly.
  • the analog tuner unit 12 selects an analog television broadcast signal received via the antenna 11 for receiving an analog broadcast, and selects a channel according to a channel selection instruction from the channel selection unit 33.
  • the received signal from the analog tuner unit 12 is separated into an audio signal and a video signal in the AV switch unit 13, the video signal is input to the video selector unit 18, and the audio signal is input to the audio selector unit 26.
  • the digital tuner unit 14 selects a digital television broadcast signal received via the digital broadcast receiving antenna 40, and selects a channel to be received according to a channel selection instruction from the channel selection unit 33.
  • the received signal from the digital tuner unit 14 is demodulated by the digital demodulation unit 15 and sent to the separation unit (DMUX) 16.
  • the IP broadcast tuner unit 23 selects an IP broadcast received via a communication control unit 34 connected to a telephone line / LAN or the like, and receives a specific IP received in response to a channel selection instruction from the channel selection unit 33. The broadcast is selected and the output is sent to the separation unit (DMUX) 16.
  • DMUX separation unit
  • the separation unit (DMUX) 16 separates the multiplexed video data and audio data input from the digital demodulation unit 15 or the IP broadcast tuner unit 23, sends the video data to the video decoding / capture unit 17, and the audio data Is sent to the audio decoding unit 25. Further, the separation unit (DMUX) 16 extracts data such as EPG data included in the broadcast signal and sends it to the EPG / OSD / reservation processing unit 24. The broadcast wave signal extracted by the separation unit (DMUX) 16 is recorded in the memory 7 by writing control by the CPU 6 as necessary.
  • the video decode / capture unit 17 decodes the video data separated by the separation unit (DMUX) 16 and captures video information included in the video data as a still image.
  • the video signal decoded by the video decoding / capture unit 17 is sent to the video selector unit 18.
  • the video signal from the analog tuner unit 12 is input to the video selector unit 18, and the video signal from the external input unit 31 is also input.
  • the video selector unit 18 selects and outputs one video signal from these input video signals according to the control signal from the CPU 6, and sends it to the video processing unit 19.
  • the video processing unit 19 performs video processing such as noise reduction processing, sharpness adjustment, and contrast adjustment on the input video signal so as to obtain an optimal video signal for the liquid crystal display device 22. Convert video data to.
  • the video processing unit 19 acquires image quality correction coefficients (video correction information) from a genre information processing unit 41 and an environment information processing unit 42 described later. Further, the basic value (basic video correction information) of the image quality correction coefficient that is the basis of the image quality correction preset by the user is acquired from the memory 7. Next, the image quality correction coefficient for output, which is the image quality correction coefficient used when actually correcting the image quality, is calculated by multiplying the basic value by the acquired image quality correction coefficient. Next, the image quality is corrected using the output image quality correction coefficient, and the moving image whose image quality is corrected is output to the liquid crystal display device 22 via the addition circuit 20 and the display control unit 21.
  • the image quality correction coefficients video correction information
  • the display control unit 21 includes a drive circuit for displaying the received video data on the liquid crystal display device 22, and an electronic program table (from the EPG / OSD / reservation processing unit 24) added by the addition circuit 20 ( EPG (Electronic Program Guide) data or OSD (On Screen Display) data is sent to the liquid crystal display device 22 in addition to the video data from the video processing unit 19.
  • EPG Electronic Program Guide
  • OSD On Screen Display
  • the EPG / OSD / reservation processing unit 24 further performs processing for scaling display according to the present invention, which will be described in detail later.
  • the audio decoding unit 25 decodes the audio data separated by the separation unit (DMUX) 16.
  • the audio decoding unit 25 sends the decoded audio signal to the audio selector unit 26.
  • the audio selector unit 26 receives the audio signal from the AV switch unit 13, the audio signal from the external input unit 31, and the audio signal from the audio decoding unit 25, and is selected by the video selector unit 18 under the control of the CPU 6. An audio signal corresponding to the video signal is selected, and the audio signal is sent to the speaker 28 via the audio output conversion unit 27.
  • the audio output conversion unit 27 converts the received audio signal into a signal optimal for reproduction on the speaker 28 and supplies the converted signal to the speaker 28.
  • the remote control light receiving unit 35 receives an optical signal from a remote controller 36 (hereinafter referred to as a remote controller 36) and receives a control signal from the remote controller 36. Instructions from the viewer, such as transition to scaling display described later, selection and determination of various buttons at the time of scaling display, are performed via the remote controller 36.
  • the EPG / OSD / reservation processing unit 24 creates an electronic program guide based on EPG data periodically updated and stored, and draws OSD data stored in the memory 7 in advance.
  • the OSD data is data for drawing various information such as a setting menu screen, a volume cage, a current time, a channel selection, and the like stored in advance in the memory 7, for example.
  • the EPG / OSD / reservation processing unit 24 performs program reservation processing using the electronic program guide.
  • the communication control unit 34 performs control so as to establish communication via a network such as a telephone line, a LAN, or the Internet.
  • the television receiver 10 includes a genre information processing unit 41 (type information processing unit) and an environment information processing unit 42 (environment information processing unit).
  • the genre information processing unit 41 acquires a plurality of genre information (type information) associated with the content from the member that has received the content among the separation unit 16, the external input unit 31, and the recording / playback unit 32.
  • genre information is classified and associated with major classification and middle classification.
  • the major classification includes, for example, “news / report”, “information / wide show”, “variety”, “movie”, “sports”, and the like.
  • As the middle category for example, when the major category is “news / report”, there are “regular / comprehensive”, “local / region”, “weather” and the like.
  • one broadcast program (content) is associated with a plurality of large categories of genre information. For example, in the case of sports news, genre information of large categories “news / report” and “sports” is associated, and further, some genre information of medium categories belonging to these are associated.
  • the genre information processing unit 41 displays genre information associated with the content. Get multiple.
  • the plurality of genre information to be acquired may be a part or all of the genre information associated with the content.
  • the genre information processing unit 41 may acquire a plurality of genre information only from the major classification, may acquire a plurality of genre information only from the middle classification, or may include a plurality of combinations from the major classification and the middle classification. Genre information may be acquired.
  • the memory 7 stores the image quality correction coefficient in association with the genre information. Therefore, the genre information processing unit 41 acquires the image quality correction coefficient associated with the acquired genre information from the memory 7. Since the genre information processing unit 41 acquires a plurality of genre information as described above, the image quality correction coefficient corresponding to each genre information is acquired. Next, the genre information processing unit 41 transmits all of the acquired image quality correction coefficients to the video processing unit 19.
  • the case where the content received by the television receiver is a digital broadcast will be described, but the same processing is possible with an analog broadcast. That is, in the case of analog broadcasting, it is possible to acquire type information by extracting a keyword representing the type of program as type information by performing audio analysis, image analysis, and the like. Then, an image quality correction coefficient is acquired based on the keyword.
  • the environment information processing unit 42 acquires an image quality correction coefficient based on the brightness (environment information, illuminance) detected by the OPC sensor 38.
  • an equation for calculating the image quality correction coefficient from the illuminance may be stored in the memory 7 and may be calculated using the equation, or a range in which the illuminance is associated with a certain value of the image quality correction coefficient is stored in the memory. 7 may be stored. Thereby, the image quality correction coefficient suitable for the viewing environment can be calculated.
  • the environment information is not limited to brightness.
  • the color temperature may be measured using an RGB sensor, and the image quality correction coefficient may be calculated based on the color temperature.
  • the environment information processing unit 42 transmits the calculated image quality correction coefficient to the video processing unit 19.
  • the television receiver is particularly described as an example.
  • the television is received by a portable device capable of viewing the television, for example, a mobile phone, a car navigation system, a portable game terminal, or the like.
  • a portable device capable of viewing the television
  • the display method according to the invention of the present application can also be applied.
  • FIG. 2 is a flowchart showing an example of the operation in the television receiver 10.
  • image quality correction is performed based on genre information and a preset basic value of an image quality correction coefficient (hereinafter simply referred to as “basic value”).
  • step S11 when any of the digital tuner unit 14, the external input unit 31, and the recording / playback unit 32 receives content associated with genre information, the television receiver 10 starts image quality correction (step S11).
  • the genre information processing unit 41 decodes and acquires a plurality of genre information (step S12).
  • an image quality correction coefficient corresponding to each of the plurality of genre information (here, in order to distinguish from other image quality correction coefficients, the image quality correction coefficient corresponding to the genre information is referred to as “genre-specific image quality correction coefficient”). Obtained from the memory 7.
  • the acquired genre-specific image quality correction coefficient is transmitted to the video processing unit 19 (step S13).
  • the video processing unit 19 acquires a basic value from the memory 7 (step S14).
  • the video processing unit 19 calculates an image quality correction coefficient (hereinafter referred to as “output image quality correction coefficient”) used for actual image quality correction from the basic value and the image quality correction coefficient for each genre (step S15). For example, when there are two genre-specific image quality correction coefficients (genre-specific image quality correction coefficient 1, genre-specific image quality correction coefficient 2), multiplication is performed as follows: basic value ⁇ genre-specific image quality correction coefficient 1 ⁇ genre-specific image quality correction coefficient 2. An output image quality correction coefficient may be calculated.
  • an image quality correction coefficient hereinafter referred to as “output image quality correction coefficient”
  • the genre information acquired from the content is “movie” and “variety”
  • the movie image quality correction coefficient is 0.8 times
  • the variety image quality correction coefficient is 1.1 times
  • the contrast Assume that the basic value is 30.
  • the image quality (contrast) is corrected based on this value.
  • the genre information it is judged that the content is an introduction program for a movie, and it is determined that there are many switching between a movie introduction scene and a scene where a moderator etc. introduces a movie. Video settings can be made.
  • the image processing unit 19 calculates the output image quality correction coefficient
  • the image processing unit 19 corrects the image quality using the output image quality correction coefficient, and outputs the corrected image quality to the liquid crystal display device 22 via the addition circuit 20 and the display control unit 21. Is displayed (step S16). This completes the image quality correction operation (step S17).
  • FIG. 3 is a flowchart showing an example of the operation in the television receiver 10.
  • image quality correction is performed based on genre information, environmental information detected by the OPC sensor 38, and basic values.
  • the television receiver 10 starts image quality correction (step S21).
  • the genre information processing unit 41 decodes and acquires a plurality of genre information (step S22).
  • a genre-specific image quality correction coefficient corresponding to each of the plurality of genre information is acquired from the memory 7.
  • the acquired genre-specific image quality correction coefficient is transmitted to the video processing unit 19 (step S23).
  • the environmental information processing unit 42 acquires environmental information (for example, illuminance around the television receiver 10) from the OPC sensor 38 (step S24). After obtaining the environment information, the environment information processing unit 42 obtains the image quality correction coefficient (here, the image quality correction coefficient corresponding to the environment information is distinguished from the other image quality correction coefficients from the environment information stored in the memory 7 by “ The environmental image quality correction coefficient is acquired by using an expression for calculating “environmental image quality correction coefficient”) or by acquiring an image quality correction coefficient associated with the illuminance in advance. The calculated environmental image quality correction coefficient is transmitted to the video processing unit 19 (step S25).
  • environmental image quality correction coefficient here, the image quality correction coefficient corresponding to the environment information is distinguished from the other image quality correction coefficients from the environment information stored in the memory 7 by “ The environmental image quality correction coefficient is acquired by using an expression for calculating “environmental image quality correction coefficient” or by acquiring an image quality correction coefficient associated with the illuminance in advance.
  • the calculated environmental image quality correction coefficient is transmitted to the video processing unit 19 (
  • steps S22 and S23 and steps S24 and S25 may be reversed.
  • the video processing unit 19 acquires a basic value from the memory 7 (step S26).
  • the video processing unit 19 calculates an output image quality correction coefficient from the basic value, the genre-specific image quality correction coefficient, and the environmental image quality correction coefficient (step S27). For example, when there are two genre-specific image quality correction coefficients (genre-specific image quality correction coefficient 1, genre-specific image quality correction coefficient 2), basic value ⁇ genre-specific image quality correction coefficient 1 ⁇ genre-specific image quality correction coefficient 2 ⁇ environmental image quality correction coefficient.
  • the output image quality correction coefficient may be calculated by multiplying as described above.
  • the image processing unit 19 calculates the output image quality correction coefficient
  • the image processing unit 19 corrects the image quality using the output image quality correction coefficient, and outputs the corrected image quality to the liquid crystal display device 22 via the addition circuit 20 and the display control unit 21. Is displayed (step S28). This completes the image quality correction operation (step S29).
  • the AV mode is an image quality pattern set according to the type of content, such as “movie mode” and “dynamic mode”, and can be said to be a combination of a plurality of image quality parameters such as brightness and contrast. .
  • the “dynamic mode” is, for example, an image quality setting that emphasizes a contrast feeling that realizes a sharp image even in a bright environment.
  • the “standard mode” is, for example, an image quality setting that balances contrast and gradation that realizes a sharp image with brightness of a general home.
  • the “movie mode” is, for example, an image quality setting that emphasizes gradation, dark area reproducibility, and film texture.
  • the genre information processing unit 41 acquires “sports” and “news” from the content as genre information.
  • the weight of each AV mode for each genre information is stored in the memory 7. For example, in the case of “sports”, the total weight is 10 and “dynamic mode” is 10, “standard mode” is 0, “movie mode” "Is weighted with 0. In the case of “news”, 0 is assigned to “dynamic mode”, 10 to “standard mode”, and 0 to “movie mode”.
  • the memory 7 also stores parameter priorities. For example, it is assumed that the priority order is “dynamic mode”, “standard mode”, and “movie mode”.
  • the video processing unit 19 acquires parameters corresponding to each genre information, adds the weights from the memory 7 and adds them, and the content parameters are “dynamic mode” 10 and “standard mode” 10 , “Movie Mode” is determined to be 0.
  • the parameter is determined based on the priority order, so the “dynamic mode” having the higher priority order is selected from the “dynamic mode” and the “standard mode” that are the same value. Therefore, the video processing unit 19 uses the “dynamic mode” as output video correction information, and performs image quality correction based on the video correction information.
  • the genre information is classified into major classification, middle classification, and minor classification, so it is possible to apply weight according to the classification.
  • the major classification is “news” and the minor classification is “sports”.
  • the memory 7 stores weights of “weight ⁇ 100% for large classification, weight ⁇ 70% for medium classification, weight ⁇ 50% for small classification”.
  • the “dynamic mode” is 0, the “standard mode” is 10 and the “movie mode” is 0 for the broadly classified “news”.
  • “Dynamic mode” is 0, “Standard mode” is 10, and “Movie mode” is 0.
  • FIG. 4 is a diagram schematically showing the progress of image quality correction in the present embodiment.
  • the AV mode is changed from the “movie mode” to the “dynamic mode”, and the value of a certain parameter (index) relating to image quality is changed from 10 (referred to as “movie value” for convenience of explanation) to 20 ( The case of changing to “dynamic value” for convenience of explanation will be described as an example. Examples of this parameter include brightness and contrast.
  • the value of the parameter is not directly changed from the movie value to the dynamic value, but is a value between the movie value and the dynamic value after 1 second as shown in FIG. (First halfway value), and after 5 seconds from the start of correction, it is changed to 15 (second halfway value), which is a value between the first halfway value and the dynamic value. Change to dynamic value after 10 seconds.
  • the above parameter is changed to a halfway value that is a value between the movie value and the dynamic value, the image quality is corrected, and then the dynamic value that is the target value is changed to correct the image quality.
  • the above parameters are changed step by step, and the image quality can be changed smoothly. For this reason, the uncomfortable feeling given to the viewer can be reduced.
  • the more intermediate values to be set may be changed step by step such as 11, 12, 13 ... every 1 second, for example, 11.01, 11.02 ... every 0.01 seconds, You may take a more detailed step. If the correction is performed in such a fine stepwise manner, the image quality can be changed very smoothly as shown in FIG. In addition, as in this example, it is preferable from the viewpoint that the image quality can be corrected more smoothly that the time intervals for changing from the first value (movie value) to all midway values and the last value (dynamic value) are equal. . However, this time interval may be different. For example, the time interval may be increased or decreased as the last value is approached.
  • the time interval may be completely different regardless of the stage, or the intervals may be equalized only in a specific time zone and the intervals may be different in other time zones.
  • This interval can be set in any way.
  • the time from the parameter before the image quality correction to the correction to the target parameter may be appropriately set based on various conditions such as the image quality before and after the change by the correction, for example, 1 to 20 seconds may be mentioned. 5 to 20 seconds is preferable, 5 to 15 seconds is more preferable, and 5 to 10 seconds is still more preferable. Also, depending on the parameter to be changed, such as the color temperature, it may be about 60 seconds because it is easy for the viewer to understand if the change is made in about 10 seconds.
  • the genre information processing unit 41 and the environment information processing unit 42 included in the television receiver 10 may be configured by hardware logic. Alternatively, it may be realized by software using a CPU (Central Processing Unit) as follows.
  • CPU Central Processing Unit
  • the television receiver 10 includes a CPU that executes instructions of a program that realizes each function, a ROM (Read Only Memory) that stores the program, a RAM (Random Access Memory) that expands the program into an executable format, and And a storage device (recording medium) such as a memory for storing the program and various data.
  • a predetermined recording medium such as a memory for storing the program and various data.
  • This recording medium only needs to record the program code (execution format program, intermediate code program, source program) of the program of the television receiver 10 which is software that realizes the above-described functions so that it can be read by a computer.
  • This recording medium is supplied to the television receiver 10.
  • the television receiver 10 or CPU or MPU as a computer may read and execute the program code recorded on the supplied recording medium.
  • the recording medium for supplying the program code to the television receiver 10 is not limited to a specific structure or type. That is, the recording medium includes, for example, a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and an optical disk such as a CD-ROM / MO / MD / DVD / CD-R. System, a card system such as an IC card (including a memory card) / optical card, or a semiconductor memory system such as a mask ROM / EPROM / EEPROM / flash ROM.
  • a tape system such as a magnetic tape and a cassette tape
  • a magnetic disk such as a floppy (registered trademark) disk / hard disk
  • an optical disk such as a CD-ROM / MO / MD / DVD / CD-R.
  • a card system such as an IC card (including a memory card) / optical card, or a semiconductor memory system such as
  • the object of the present invention can be achieved.
  • the program code is supplied to the television receiver 10 via the communication network.
  • the communication network is not limited to a specific type or form as long as it can supply program codes to the television receiver 10.
  • the Internet intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication network, etc. may be used.
  • the transmission medium constituting the communication network may be any medium that can transmit the program code, and is not limited to a specific configuration or type.
  • a specific configuration or type for example, even wired such as IEEE 1394, USB (Universal Serial Bus), power line carrier, cable TV line, telephone line, ADSL (Asymmetric Digital Subscriber Line) line, infrared such as IrDA and remote control, Bluetooth (registered trademark), 802.11
  • radio such as radio, HDR, mobile phone network, satellite line, terrestrial digital network.
  • the present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.
  • environmental information acquisition means for acquiring environmental information relating to the external environment, environmental information for calculating video correction information based on the environmental information, and transmitting the calculated video correction information to the video processing means It is more preferable that the video processing means further calculates one video correction information from a plurality of video correction information acquired from the type information processing means and the environment information processing means.
  • the environmental information may be at least one information selected from illuminance and color temperature.
  • video correction information actually used for video correction is created using not only type information but also environment information (illuminance, color temperature, etc.) indicating the viewing environment. Therefore, it is possible to perform video correction that considers not only the type information but also the viewing environment.
  • the environmental information acquisition means is an illuminance sensor including a low pass filter.
  • the illuminance can be acquired smoothly by relaxing temporary changes such as when a person passes in front of the sensor.
  • the video processing means calculates one video correction information from preset basic video correction information that is a basis for image quality correction set in advance and the plurality of acquired video correction information. More preferably.
  • the video correction information that is actually used for video correction is created using not only the type information but also preset basic video correction information.
  • the basic video correction information includes video correction information for the user to input a desired image quality and realize the image quality. That is, it is possible to perform video correction that takes into account not only the type information but also user preferences.
  • the correction by the video processing means is corrected by changing an index indicating the property of at least one of image quality and sound quality from a certain value to another certain value. More preferably, the video processing means changes the halfway value which is a value between the certain value and the certain other value at least once while changing the index.
  • the index changes step by step, and the image quality and sound quality are corrected step by step based on this.
  • the viewer can feel the intermediate quality of image quality and sound quality before and after the correction, thereby reducing the uncomfortable feeling given to the viewer.
  • the video processing means sets a plurality of the midpoint values while changing the index, and changes the certain value from the certain midpoint value to the certain other value. It is more preferable that the time intervals of the change are made equal.
  • the present invention can be optimally used as a display device such as a television receiver.
  • Video processing unit (video processing means) 38 OPC sensor (environmental information acquisition means) 41 Genre information processing section (type information processing means) 42 Environmental Information Processing Department (Environmental Information Processing Means)

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

La présente invention concerne un dispositif d’affichage qui peut corriger la qualité de l’image et la qualité du son, exactement selon les types de programmes. Un récepteur de télévision (10) qui reçoit et affiche des contenus associés à des informations de plusieurs genres comporte : une unité de traitement d’informations de genre (41) qui obtient plusieurs éléments d’informations de genre et obtient des informations de correction de qualité d’image associées aux éléments individuels des informations de genre ; et une unité de traitement vidéo (19) qui obtient plusieurs éléments d’informations de correction de qualité d’image de l’unité de traitement d’informations de genre (41), calcule un élément d’informations de correction de qualité d’image à partir des plusieurs éléments d’informations de correction de qualité d’image, et corrige la qualité de l’image et la qualité du son, lors de la reproduction d’un contenu vidéo, sur la base des informations de correction de qualité d’image calculées.
PCT/JP2010/062616 2009-07-27 2010-07-27 Dispositif d’affichage, programme et support de stockage lisible par ordinateur sur lequel est enregistré un programme WO2011013660A1 (fr)

Applications Claiming Priority (2)

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JP2009174622 2009-07-27
JP2009-174622 2009-07-27

Publications (1)

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WO2011013660A1 true WO2011013660A1 (fr) 2011-02-03

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11149276A (ja) * 1997-11-17 1999-06-02 Takiron Co Ltd ドットマトリクス発光表示器の調光装置
JP2004279503A (ja) * 2003-03-13 2004-10-07 Toshiba Corp 情報処理装置および表示輝度制御方法
JP2007312349A (ja) * 2005-10-12 2007-11-29 Matsushita Electric Ind Co Ltd 視覚処理装置、表示装置および集積回路
WO2008117366A1 (fr) * 2007-03-23 2008-10-02 Pioneer Corporation Dispositif de support d'ajustement de qualité d'image, unité de traitement de signal vidéo, et procédé de support d'ajustement de qualité d'image
WO2009054326A1 (fr) * 2007-10-26 2009-04-30 Nec Corporation Procédé de correction d'image, dispositif de correction d'image et programme

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11149276A (ja) * 1997-11-17 1999-06-02 Takiron Co Ltd ドットマトリクス発光表示器の調光装置
JP2004279503A (ja) * 2003-03-13 2004-10-07 Toshiba Corp 情報処理装置および表示輝度制御方法
JP2007312349A (ja) * 2005-10-12 2007-11-29 Matsushita Electric Ind Co Ltd 視覚処理装置、表示装置および集積回路
WO2008117366A1 (fr) * 2007-03-23 2008-10-02 Pioneer Corporation Dispositif de support d'ajustement de qualité d'image, unité de traitement de signal vidéo, et procédé de support d'ajustement de qualité d'image
WO2009054326A1 (fr) * 2007-10-26 2009-04-30 Nec Corporation Procédé de correction d'image, dispositif de correction d'image et programme

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