KR102782659B1 - 화상 부호화 장치, 화상 부호화 방법 및 저장 매체 - Google Patents

화상 부호화 장치, 화상 부호화 방법 및 저장 매체 Download PDF

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KR102782659B1
KR102782659B1 KR1020217031424A KR20217031424A KR102782659B1 KR 102782659 B1 KR102782659 B1 KR 102782659B1 KR 1020217031424 A KR1020217031424 A KR 1020217031424A KR 20217031424 A KR20217031424 A KR 20217031424A KR 102782659 B1 KR102782659 B1 KR 102782659B1
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transform coefficients
quantization
matrix
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마사토 시마
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캐논 가부시끼가이샤
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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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • 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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • 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
    • H04N19/12—Selection 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
    • 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • 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
    • H04N19/124—Quantisation
    • 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • 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
    • H04N19/124—Quantisation
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • 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
    • H04N19/10—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
    • H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence estimation
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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
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    • 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
    • H04N19/157—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
    • H—ELECTRICITY
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    • 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
    • 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
    • H04N19/10—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
    • H04N19/177—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 a group of pictures [GOP]
    • 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
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    • 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
    • H04N19/18—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 a set of transform coefficients
    • 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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
KR1020217031424A 2019-03-11 2020-02-28 화상 부호화 장치, 화상 부호화 방법 및 저장 매체 Active KR102782659B1 (ko)

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JP2019044276A JP2020150340A (ja) 2019-03-11 2019-03-11 画像符号化装置、画像符号化方法、及びプログラム
JPJP-P-2019-044276 2019-03-11
PCT/JP2020/008439 WO2020184229A1 (ja) 2019-03-11 2020-02-28 画像符号化装置、画像符号化方法、及びプログラム

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KR102782659B1 true KR102782659B1 (ko) 2025-03-19

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US (6) US11985352B2 (enExample)
EP (1) EP3941053A4 (enExample)
JP (3) JP2020150340A (enExample)
KR (1) KR102782659B1 (enExample)
CN (6) CN118158412A (enExample)
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JP2020150338A (ja) * 2019-03-11 2020-09-17 キヤノン株式会社 画像復号装置、画像復号方法、及びプログラム
JP7267785B2 (ja) 2019-03-11 2023-05-02 キヤノン株式会社 画像復号装置、画像復号方法、及びプログラム
JP2020150340A (ja) * 2019-03-11 2020-09-17 キヤノン株式会社 画像符号化装置、画像符号化方法、及びプログラム
EP4124036A4 (en) 2020-09-27 2023-11-22 Tencent Technology (Shenzhen) Company Limited Video coding/decoding method, apparatus, and device
CN114286096B (zh) * 2020-09-27 2023-02-10 腾讯科技（深圳）有限公司 视频解码方法、装置及设备
CN117519887B (zh) * 2023-12-13 2024-03-12 南京云玑信息科技有限公司 一种提升云电脑远程操作体验的方法及系统

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JP2020150338A (ja) * 2019-03-11 2020-09-17 キヤノン株式会社 画像復号装置、画像復号方法、及びプログラム
JP2020150340A (ja) * 2019-03-11 2020-09-17 キヤノン株式会社 画像符号化装置、画像符号化方法、及びプログラム
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CN118158409A (zh) 2024-06-07
CN113574881A (zh) 2021-10-29
US12425653B2 (en) 2025-09-23
US12425652B2 (en) 2025-09-23
CN113574881B (zh) 2024-03-19
KR20210125095A (ko) 2021-10-15
US20240259602A1 (en) 2024-08-01
JP2020150340A (ja) 2020-09-17
US12425651B2 (en) 2025-09-23
US20240259600A1 (en) 2024-08-01
US12464165B2 (en) 2025-11-04
TW202332273A (zh) 2023-08-01
WO2020184229A1 (ja) 2020-09-17
CN118158410A (zh) 2024-06-07
JP2023105156A (ja) 2023-07-28
TW202034691A (zh) 2020-09-16
EP3941053A4 (en) 2022-12-21
US20240259599A1 (en) 2024-08-01
EP3941053A1 (en) 2022-01-19
CN118158411A (zh) 2024-06-07
CN118158408A (zh) 2024-06-07
TWI849820B (zh) 2024-07-21
US11985352B2 (en) 2024-05-14
US12425650B2 (en) 2025-09-23
US20240267562A1 (en) 2024-08-08
US20240259601A1 (en) 2024-08-01
JP2025074308A (ja) 2025-05-13
CN118158412A (zh) 2024-06-07
TWI800712B (zh) 2023-05-01
JP7651615B2 (ja) 2025-03-26
US20210409772A1 (en) 2021-12-30

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