CN114556943A - 变换方法、编码器、解码器以及存储介质 - Google Patents

变换方法、编码器、解码器以及存储介质 Download PDF

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CN114556943A
CN114556943A CN202080071780.2A CN202080071780A CN114556943A CN 114556943 A CN114556943 A CN 114556943A CN 202080071780 A CN202080071780 A CN 202080071780A CN 114556943 A CN114556943 A CN 114556943A
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CN114556943B (zh
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霍俊彦
乔文涵
马彦卓
万帅
杨付正
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/513—Processing of motion vectors

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  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

一种变换方法、编码器、解码器以及存储介质，编码器确定当前块的ISP模式参数；当ISP模式参数指示当前块使用ISP模式确定当前块的帧内预测值时，确定当前块的子分区；确定子分区的残差值；当子分区使用一次变换时，确定子分区使用的一次变换核；使用一次变换核，对残差值进行变换处理。解码器解析码流，确定当前块的ISP模式参数；当ISP模式参数指示当前块使用ISP模式确定当前块的帧内预测值时，确定当前块的子分区；解析码流，确定子分区的变换系数矩阵；确定子分区使用的一次变换核；使用一次变换核，对变换系数矩阵进行变换处理。

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PCT国内申请，说明书已公开。

Claims (30)

  1. PCT国内申请，权利要求书已公开。
CN202080071780.2A 2020-04-03 2020-04-03 变换方法、编码器、解码器以及存储介质 Active CN114556943B (zh)

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WO2024007120A1 (zh) * 2022-07-04 2024-01-11 Oppo广东移动通信有限公司 编解码方法、编码器、解码器以及存储介质
CN117596399A (zh) * 2023-10-09 2024-02-23 小红书科技有限公司 变换参数确定方法、装置、电子设备及存储介质

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WO2023197195A1 (zh) * 2022-04-13 2023-10-19 Oppo广东移动通信有限公司 视频编解码方法、编码器、解码器及存储介质

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024007120A1 (zh) * 2022-07-04 2024-01-11 Oppo广东移动通信有限公司 编解码方法、编码器、解码器以及存储介质
CN117596399A (zh) * 2023-10-09 2024-02-23 小红书科技有限公司 变换参数确定方法、装置、电子设备及存储介质

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