CN112640468A - 应用于双向帧间预测中的参考帧获取方法及装置 - Google Patents

应用于双向帧间预测中的参考帧获取方法及装置 Download PDF

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CN112640468A
CN112640468A CN201980057228.5A CN201980057228A CN112640468A CN 112640468 A CN112640468 A CN 112640468A CN 201980057228 A CN201980057228 A CN 201980057228A CN 112640468 A CN112640468 A CN 112640468A
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CN112640468B (zh
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陈焕浜
杨海涛
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Huawei Technologies Co Ltd
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    • 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
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
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    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
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    • H04N19/136—Incoming video signal characteristics or properties
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    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
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    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/172—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
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    • H04N19/51—Motion estimation or motion compensation
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Abstract

本申请实施例公开了一种应用于双向帧间预测中的参考帧获取方法方法及装置，涉及视频图像编解码技术领域，提高了编解码效率。该方法包括：确定当前图像块的第一参考帧列表以及第二参考帧列表；从所述第一参考帧列表中，确定是否存在满足条件A1的X向参考帧x1；从所述第二参考帧列表中，确定是否存在满足条件B1的Y向参考帧y1；响应于确定存在的所述X向参考帧x1以及确定存在的Y向参考帧y1获取所述当前图像块的双向参考帧索引值(R1,R2)。

Description

PCT国内申请，说明书已公开。

Claims (26)

  1. PCT国内申请，权利要求书已公开。
CN201980057228.5A 2018-09-04 2019-06-30 应用于双向帧间预测中的参考帧获取方法及装置 Active CN112640468B (zh)

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US201862726975P 2018-09-04 2018-09-04
US62/726,975 2018-09-04
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US62/727,534 2018-09-05
US201862734226P 2018-09-20 2018-09-20
US62/734,226 2018-09-20
PCT/CN2019/094106 WO2020048205A1 (zh) 2018-09-04 2019-06-30 应用于双向帧间预测中的参考帧获取方法及装置

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