CN113039787B - 解码器侧运动矢量细化 - Google Patents

解码器侧运动矢量细化 Download PDF

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CN113039787B
CN113039787B CN201980075607.7A CN201980075607A CN113039787B CN 113039787 B CN113039787 B CN 113039787B CN 201980075607 A CN201980075607 A CN 201980075607A CN 113039787 B CN113039787 B CN 113039787B
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block
motion vector
prediction
pixels
determining
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CN113039787A (zh
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C-C·陈
W-J·钱
C-H·洪
M·卡切维奇
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Qualcomm Inc
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    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/44Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • HELECTRICITY
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    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51Motion estimation or motion compensation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
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    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods 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
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    • H04N19/12Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • HELECTRICITY
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    • H04N19/134Methods 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
    • H04N19/136Incoming video signal characteristics or properties
    • H04N19/137Motion inside a coding unit, e.g. average field, frame or block difference
    • H04N19/139Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
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    • H04N19/17Methods 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
    • H04N19/176Methods 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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    • H04N19/51Motion estimation or motion compensation
    • H04N19/513Processing of motion vectors
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    • H04N19/513Processing of motion vectors
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    • H04N19/51Motion estimation or motion compensation
    • H04N19/523Motion estimation or motion compensation with sub-pixel accuracy
    • HELECTRICITY
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    • H04N19/51Motion estimation or motion compensation
    • H04N19/563Motion estimation with padding, i.e. with filling of non-object values in an arbitrarily shaped picture block or region for estimation purposes
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    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51Motion estimation or motion compensation
    • H04N19/573Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
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    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51Motion estimation or motion compensation
    • H04N19/577Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
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US16/695,907 US11146810B2 (en) 2018-11-27 2019-11-26 Decoder-side motion vector refinement
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US11146810B2 (en) 2021-10-12
US20200169748A1 (en) 2020-05-28
KR20210093259A (ko) 2021-07-27
KR102936770B1 (ko) 2026-03-09
WO2020113051A3 (en) 2020-07-23
BR112021009606A2 (pt) 2021-08-10
CN113039787A (zh) 2021-06-25
EP3888358A2 (en) 2021-10-06
WO2020113051A2 (en) 2020-06-04
JP7446297B2 (ja) 2024-03-08
SG11202104085RA (en) 2021-06-29
CL2021001335A1 (es) 2021-12-03
CN118741148A (zh) 2024-10-01
JP2022507683A (ja) 2022-01-18

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