CN111512630A - 图像块的运动信息的预测方法、装置及编解码器 - Google Patents

图像块的运动信息的预测方法、装置及编解码器 Download PDF

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CN111512630A
CN111512630A CN201880083601.XA CN201880083601A CN111512630A CN 111512630 A CN111512630 A CN 111512630A CN 201880083601 A CN201880083601 A CN 201880083601A CN 111512630 A CN111512630 A CN 111512630A
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motion information
candidate motion
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target
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张娜
安基程
郑建铧
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Huawei Technologies Co Ltd
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    • 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
    • H04N19/573—Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • H—ELECTRICITY
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    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—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
    • 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
    • H04N19/176—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 block, e.g. a macroblock
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    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • 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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    • H04N19/157—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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    • H04N19/51—Motion estimation or motion compensation
    • H04N19/513—Processing of motion vectors
    • H04N19/521—Processing of motion vectors for estimating the reliability of the determined motion vectors or motion vector field, e.g. for smoothing the motion vector field or for correcting motion vectors
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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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    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
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Abstract

本申请实施例公开了图像块的运动信息的预测方法和相关产品。其中该方法包括：确定当前图像块的候选运动信息列表，所述候选运动信息列表包括至少一个组合候选运动信息，所述至少一个组合候选运动信息中的第一组合候选运动信息是对P个候选运动信息采用对应的加权因子进行加权得到的，P为大于或等于2的整数，所述P个候选运动信息中的至少两个候选运动信息的加权因子wpi分别为大于0且小于1的数值，所述P个候选运动信息的加权因子之和为1；从所述候选运动信息列表中确定目标运动信息；根据所述目标运动信息，预测当前图像块的运动信息，所述运动信息用于帧内预测或帧间预测。本申请实施例方案有利于提升图像块的运动信息的预测准确性。

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PCT国内申请，说明书已公开。

Claims (48)

  1. PCT国内申请，权利要求书已公开。
CN201880083601.XA 2017-12-23 2018-09-21 图像块的运动信息的预测方法、装置及编解码器 Pending CN111512630A (zh)

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PCT/CN2018/107094 WO2019119909A1 (zh) 2017-12-23 2018-09-21 图像块的运动信息的预测方法、装置及编解码器

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US11297326B2 (en) 2022-04-05
WO2019120305A1 (zh) 2019-06-27
US20200396462A1 (en) 2020-12-17
EP3731526A4 (en) 2020-12-30
US20220345716A1 (en) 2022-10-27
BR112020012732A2 (pt) 2020-12-01
EP3731526A1 (en) 2020-10-28
JP2021507639A (ja) 2021-02-22
CN109963155B (zh) 2023-06-06
KR20200108856A (ko) 2020-09-21
WO2019119909A1 (zh) 2019-06-27

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