FIXED POINT IMPLEMENTATION OF RANGE ADJUSTMENT OF COMPONENTS IN VIDEO CODING

    公开(公告)号:AU2021200087B2

    公开(公告)日:2022-04-14

    申请号:AU2021200087

    申请日:2021-01-07

    Applicant: QUALCOMM INC

    Abstract: Processing high dynamic range and or wide color gamut video data using a fixed-point implementation. A method of processing video data may include receiving one or more supplemental enhancement information (SEI) messages that contain information specifying how to determine parameters for performing an inverse dynamic range adjustment process, receiving decoded video data, and performing the inverse dynamic range adjustment process on the decoded video data using fixed-point computing in accordance with the information in the one or more SEI messages. RECEIVE ONE OR MORE SYNTAX ELEMENTS THAT CONTAIN INFORMATION SPECIFYING HOW TO DETERMINE /-1300 PARAMETERS FOR PERFORMING AN INVERSE DYNAMIC RANGE ADJUSTMENT ,-1310 RECEIVE DECODED VIDEO DATA DETERMINE THE PARAMETERS FOR THE 1-1320 INVERSE DYNAMIC RANGE ADJUSTMENT PERFORM THE INVERSE DYNAMIC RANGE ADJUST PROCESS ON THE DECODED 1-1330 VIDEO DATA USING FIXED-POINT COMPUTING IN ACCORDANCE WITH THE INFORMATION RECEIVED DISPLAY THE VIDEO DATA 1-1340

    РЕГУЛИРОВКА ДИНАМИЧЕСКОГО ДИАПАЗОНА ДЛЯ КОДИРОВАНИЯ ВИДЕО С РАСШИРЕННЫМ ДИНАМИЧЕСКИМ ДИАПАЗОНОМ И ШИРОКОЙ ЦВЕТОВОЙ ГАММОЙ

    公开(公告)号:RU2701961C2

    公开(公告)日:2019-10-02

    申请号:RU2017134677

    申请日:2016-04-15

    Applicant: QUALCOMM INC

    Abstract: Изобретениеотноситсяк обработкевидеоданных. Техническийрезультат– повышениеточностивосстановленияцветовогоконтейнеравидеоданных. Данноеизобретениеобеспечиваетобработкувидеоданных, включаяобработкувидеоданныхдлясоответствияцветовомуконтейнерус расширеннымдинамическимдиапазоном/широкойцветовойгаммой (HDR/WCG). Методикиизраскрытияизобретениявключаютв себяпараметрырегулировкидинамическогодиапазона (DRA) иприменяютпараметры DRA квидеоданным, чтобылучшеиспользоватьцветовойконтейнерс HDR/WCG. Методикиизданногораскрытияизобретениятакжемогутвключатьв себясигнализациюсинтаксическихэлементов, которыепозволяютвидеодекодеруилиустройствупостобработкивидеообращатьметодики DRA изданногораскрытияизобретениядлявосстановленияисходногоилисобственногоцветовогоконтейнеравидеоданных. 4 н. и 39 з.п. ф-лы, 13 ил., 2 табл.

    VIDEO CODING TOOLS FOR IN-LOOP SAMPLE PROCESSING

    公开(公告)号:SG11201900106TA

    公开(公告)日:2019-02-27

    申请号:SG11201900106T

    申请日:2017-08-11

    Applicant: QUALCOMM INC

    Abstract: A device includes a memory device configured to store video data including a current block, and processing circuitry in communication with the memory. The processing circuitry configured to obtain a parameter value that is based on one or more corresponding parameter values associated with one or more neighbor blocks of the video data stored to the memory device, the one or more neighbor blocks being positioned within a spatio-temporal neighborhood of the current block, the spatio-temporal neighborhood including one or more spatial neighbor blocks that are positioned adjacent to the current block and a temporal neighbor block that is pointed to by a disparity vector (DV) associated with the current block. The processing circuitry is also configured to code the current block of the video data stored to the memory device.

    Methods and systems for generating and processing content color volume messages for video

    公开(公告)号:AU2017267544A1

    公开(公告)日:2018-10-25

    申请号:AU2017267544

    申请日:2017-05-15

    Applicant: QUALCOMM INC

    Abstract: Systems, methods, and computer readable media are described for processing content color volume messages. In some examples, video data is obtained. The video data can include video data obtained from a camera, encoded video data, or decoded video data. Content color volume information associated with the video data is processed. The content color volume information is indicative of the content color volume of one or more pictures of the video data. For example, the content color volume information includes a first luminance value associated with a minimum luminance of the one or more pictures, a second luminance value associated with a maximum luminance of the one or more pictures, and one or more chromaticity coordinates of one or more color primaries describing a color gamut of the one or more pictures.

    Methods and systems for generating color remapping information supplemental enhancement information messages for video

    公开(公告)号:AU2017225513A1

    公开(公告)日:2018-08-09

    申请号:AU2017225513

    申请日:2017-02-21

    Applicant: QUALCOMM INC

    Abstract: Systems, methods, and computer readable media are described for providing improved color remapping. In some examples, a video bitstream is obtained that includes a plurality of pictures having a first color characteristic. A color remapping information (CRI) supplemental enhancement information (SEI) message is identified from the video bitstream. A restriction is placed on the CRI SEI message such that a value of a syntax element of the CRI SEI message is restricted based on a condition. One or more samples of the plurality of pictures is remapped from the first color characteristic to a second color characteristic using a color remapping model of the CRI SEI message according to the restriction. In some cases, the condition is a chroma format of the plurality of pictures, in which case the value of the syntax element of the CRI SEI message is restricted based on the chroma format. In some cases, the condition is a color remap value identifying a purpose of the color remapping model of the CRI SEI message, in which case the value of the syntax element of the CRI SEI message is restricted based on the color remap value.

    IMPROVED COLOUR REMAPPING INFORMATION SUPPLEMENTAL ENHANCEMENT INFORMATION MESSAGE PROCESSING
    40.
    发明申请
    IMPROVED COLOUR REMAPPING INFORMATION SUPPLEMENTAL ENHANCEMENT INFORMATION MESSAGE PROCESSING 审中-公开
    改进的颜色再现信息辅助增强信息消息处理

    公开(公告)号:WO2017044740A3

    公开(公告)日:2017-04-27

    申请号:PCT/US2016050941

    申请日:2016-09-09

    Applicant: QUALCOMM INC

    CPC classification number: H04N19/124 H04N19/186 H04N19/70

    Abstract: In an example, a method of processing video may include receiving a bitstream including encoded video data and a colour remapping information (CRI) supplemental enhancement information (SEI) message. The CRI SEI message may include information corresponding to one or more colour remapping processes. The method may include decoding the encoded video data to generate decoded video data. The method may include applying a process that does not correspond to the CRI SEI message to the decoded video data before applying at least one of the one or more colour remapping processes to the decoded video data to produce processed decoded video data.

    Abstract translation: 在一个示例中,处理视频的方法可以包括:接收包括编码的视频数据和颜色重新映射信息(CRI)补充增强信息(SEI)消息的比特流。 CRI SEI消息可以包括对应于一个或多个颜色重新映射过程的信息。 该方法可以包括对编码的视频数据进行解码以生成解码的视频数据。 该方法可以包括在将一个或多个颜色重新映射处理中的至少一个应用于解码视频数据以产生处理后的解码视频数据之前,将不对应于CRI SEI消息的处理应用于解码视频数据。

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