ENCODER, ENCODING METHOD, DECODER, AND DECODING METHOD

    公开(公告)号:CA3069579C

    公开(公告)日:2020-08-25

    申请号:CA3069579

    申请日:2018-07-11

    Abstract: A coding device (100) for coding a block to be coded of a picture is provided with a circuit and a memory, wherein the circuit generates a first transformation coefficient using the memory by performing a first transformation on a residual signal of the block to be coded using a first transformation base, generates a second transformation coefficient by performing a second transformation on the first transformation coefficient using a second transformation base when the first transformation base matches a predetermined transformation base, quantizes the second transformation coefficient, and quantizes the first transformation coefficient without performing the second transformation when the first transformation base differs from the predetermined transformation base.

    Recording Medium, Playback Method, And Playback Device

    公开(公告)号:SG10201901781YA

    公开(公告)日:2019-03-28

    申请号:SG10201901781Y

    申请日:2015-10-01

    Abstract: RECORDING MEDIUM, PLAYBACK METHOD, AND PLAYBACK DEVICE Recorded in a recording medium are a video stream of standard-luminance range, and a video stream of high-luminance range that is a broader luminance range than the standard-luminance range, which are used selectively in accordance with a playback environment, a subtitle stream of the standard- luminance range, and a subtitle stream of the high-luminance range, which are used selectively in accordance with the playback environment, and a playlist file storing playback control information of content, playlist file including a management region where the playback control information relating to a main stream is stored, and an extended region. The management region stores first playback control information specifying that a video stream of the high-luminance range and a subtitle stream of the high-luminance range are to be played in combination. The extended region stores second playback control information specifying that a video stream of the standard-luminance range and a subtitle stream of the standard-luminance range are to be played in combination. [FIG. 46]

    RECORDING MEDIUM, PLAYBACK METHOD, AND PLAYBACK DEVICE

    公开(公告)号:SG10201801709SA

    公开(公告)日:2018-04-27

    申请号:SG10201801709S

    申请日:2015-10-01

    Abstract: Recorded in a recording medium is a video stream, map information, and bitrate information of the video stream. The map information includes size information indicating data size of a section where a picture is recorded in the video stream, based on a predetermined stipulated data size. The stipulated data size differs in accordance with the bitrate information.

    RECORDING MEDIUM, PLAYBACK METHOD, AND PLAYBACK DEVICE

    公开(公告)号:PH12017500584A1

    公开(公告)日:2017-08-30

    申请号:PH12017500584

    申请日:2017-03-30

    Abstract: Provided is a recording medium in which the following are recorded: a video stream in a standard brightness range and a video stream in a high brightness range that is wider than the brightness range of the standard brightness range, said video streams being used selectively in accordance with the reproduction environment; a subtitle stream in a standard brightness range and a subtitle stream in a high brightness range, said subtitle streams being used selectively in accordance with the reproduction environment; and a playlist file in which content reproduction control information is stored, said playlist file comprising a management area in which reproduction control information relating to a main stream is stored and an extension area. First reproduction control information specifying that the video stream in the high brightness range and the subtitle stream in the high brightness range are to be combined and reproduced is stored in the management area and second reproduction control information specifying that the video stream in the standard brightness range and the subtitle stream in the standard brightness range are to be combined and reproduced is stored in the extension area.

    MÉTODO DE PRESENTACIÓN VISUAL Y DISPOSITIVO DE PRESENTACIÓN VISUAL.

    公开(公告)号:MX379447B

    公开(公告)日:2025-03-11

    申请号:MX2020000535

    申请日:2017-11-16

    Abstract: Se proporciona un método de presentación visual para presentar visualmente, en un dispositivo de presentación visual, video de datos de video donde la luminancia de video está definida por una primera EOTF (función de transferencia electro-óptica) que indica una correlación de luminancia de HDR (alto intervalo dinámico) y valores de código. El método incluye: adquirir los datos de video; llevar a cabo, con respecto a cada uno de una pluralidad de pixeles que componen el video incluido en los datos de video adquiridos, primera determinación de determinar si la luminancia de ese pixel excede o no una primera luminancia predeterminada; llevar a cabo, con respecto a cada uno de la pluralidad de pixeles, asignación de tonos dual donde la luminancia de ese pixel se reduce por un formato diferente en caso de que se encuentre que la luminancia del pixel supera la primera luminancia predeterminada como resultado de la primera determinación, y en caso de que se encuentre que la luminancia del pixel es igual o inferior a la primera luminancia predeterminada; y presentar visualmente el video en el dispositivo de presentación visual usando los resultados de la asignación de tonos dual.

    CODIFICADOR, DECODIFICADOR, METODO DE CODIFICACION Y METODO DE DECODIFICACION

    公开(公告)号:MX2025000825A

    公开(公告)日:2025-03-07

    申请号:MX2025000825

    申请日:2021-08-06

    Abstract: Se proporciona un codificador (100) que incluye: circuitería; y una memoria acoplada a la circuitería, en el cual en operación, la circuitería: genera una imagen de predicción de un bloque actual a ser procesado, por medio del uso de un primer vector de movimiento (paso S3001); y actualiza una tabla de predictores de vectores de movimiento basados en la historia (HMVP) por medio del uso de un primer candidato que tiene el primer vector de movimiento, la tabla de HMVP almacena, en un método de primera entrada-primera salida (FIFO), una pluralidad de segundos candidatos cada uno que tiene un segundo vector de movimiento usado para un bloque procesado (paso S3002), y en la actualización de la tabla de HMVP, la circuitería: determina si un tamaño del bloque actual es menor que o igual a un tamaño umbral (paso S30021); y omite la actualización de la tabla de HMVP (paso S30022) cuando se determina que el tamaño del bloque actual es menor que o igual al tamaño umbral (Si en el paso S30021).

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