KR102686757B1 - 수정된 양자화기 - Google Patents

수정된 양자화기 Download PDF

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Publication number
KR102686757B1
KR102686757B1 KR1020227010975A KR20227010975A KR102686757B1 KR 102686757 B1 KR102686757 B1 KR 102686757B1 KR 1020227010975 A KR1020227010975 A KR 1020227010975A KR 20227010975 A KR20227010975 A KR 20227010975A KR 102686757 B1 KR102686757 B1 KR 102686757B1
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South Korea
Prior art keywords
offset value
quantization
step size
quantization index
computer
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KR1020227010975A
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Korean (ko)
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KR20220051015A (ko
Inventor
신 자오
마두 페링가세리 크리슈난
샨 리우
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텐센트 아메리카 엘엘씨
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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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/02—Digital function generators
    • G06F1/03—Digital function generators working, at least partly, by table look-up
    • 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
    • H04N19/134—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
    • 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
    • H04N19/18—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
    • H04N19/10—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
    • H04N19/184—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 bits, e.g. of the compressed video stream
    • 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
    • H04N19/186—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 colour or a chrominance component
    • 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
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
KR1020227010975A 2020-06-11 2020-11-16 수정된 양자화기 Active KR102686757B1 (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US202063038010P 2020-06-11 2020-06-11
US63/038,010 2020-06-11
US17/077,471 US11381830B2 (en) 2020-06-11 2020-10-22 Modified quantizer
US17/077,471 2020-10-22
PCT/US2020/060743 WO2021252010A1 (en) 2020-06-11 2020-11-16 Modified quantizer

Publications (2)

Publication Number Publication Date
KR20220051015A KR20220051015A (ko) 2022-04-25
KR102686757B1 true KR102686757B1 (ko) 2024-07-19

Family

ID=78826219

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020227010975A Active KR102686757B1 (ko) 2020-06-11 2020-11-16 수정된 양자화기

Country Status (6)

Country Link
US (3) US11381830B2 (https=)
EP (1) EP4000255A4 (https=)
JP (2) JP7447258B2 (https=)
KR (1) KR102686757B1 (https=)
CN (2) CN114375571B (https=)
WO (1) WO2021252010A1 (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11381830B2 (en) * 2020-06-11 2022-07-05 Tencent America LLC Modified quantizer
US20240056575A1 (en) * 2020-12-22 2024-02-15 Intellectual Discovery Co., Ltd. Deep learning-based image coding method and device
CN116207326A (zh) 2021-11-30 2023-06-02 株式会社Lg新能源 电极组件、电池单元
EP4706245A1 (en) * 2023-04-27 2026-03-11 Beijing Dajia Internet Information Technology Co., Ltd. Methods and devices on transform coefficient dequantization
KR20250033760A (ko) * 2023-09-01 2025-03-10 삼성전자주식회사 최적화된 양자화 및 역양자화를 위한 영상 복호화 장치, 영상 복호화 방법, 영상 부호화 장치, 및 영상 부호화 방법

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7995649B2 (en) 2006-04-07 2011-08-09 Microsoft Corporation Quantization adjustment based on texture level
ES2630203T3 (es) * 2006-10-10 2017-08-18 Nippon Telegraph And Telephone Corporation Método y dispositivo de control de codificación de predicción intra, su programa, y medio de almacenamiento que contiene programa
EP2647202A1 (en) * 2010-12-01 2013-10-09 iMinds Method and device for correlation channel estimation
US9451258B2 (en) * 2012-04-03 2016-09-20 Qualcomm Incorporated Chroma slice-level QP offset and deblocking
US9414054B2 (en) * 2012-07-02 2016-08-09 Microsoft Technology Licensing, Llc Control and use of chroma quantization parameter values
JP5986877B2 (ja) * 2012-10-17 2016-09-06 日立マクセル株式会社 画像伝送システム
US9300967B2 (en) * 2013-06-19 2016-03-29 Apple Inc. Sample adaptive offset control
EP4366308A3 (en) * 2013-06-28 2024-07-10 Velos Media International Limited Methods and devices for emulating low-fidelity coding in a high-fidelity coder
WO2016054765A1 (en) * 2014-10-08 2016-04-14 Microsoft Technology Licensing, Llc Adjustments to encoding and decoding when switching color spaces
US20170280139A1 (en) * 2016-03-22 2017-09-28 Qualcomm Incorporated Apparatus and methods for adaptive calculation of quantization parameters in display stream compression
US11019339B2 (en) 2017-07-12 2021-05-25 Futurewei Technologies, Inc. Fractional quantization parameter offset in video compression
US10432929B2 (en) 2018-02-12 2019-10-01 Tencent America LLC Method and apparatus for multiple line intra prediction in video compression
EP3618440A1 (en) * 2018-09-03 2020-03-04 InterDigital VC Holdings, Inc. Quantization parameter prediction for video encoding and decoding
US10931950B2 (en) * 2018-11-19 2021-02-23 Intel Corporation Content adaptive quantization for video coding
US11381830B2 (en) * 2020-06-11 2022-07-05 Tencent America LLC Modified quantizer

Also Published As

Publication number Publication date
WO2021252010A1 (en) 2021-12-16
EP4000255A4 (en) 2022-10-26
US20220150519A1 (en) 2022-05-12
JP7447258B2 (ja) 2024-03-11
US11882301B2 (en) 2024-01-23
EP4000255A1 (en) 2022-05-25
US20220303563A1 (en) 2022-09-22
CN118646894A (zh) 2024-09-13
JP2023505950A (ja) 2023-02-14
US11381830B2 (en) 2022-07-05
JP2024059893A (ja) 2024-05-01
CN114375571B (zh) 2024-06-04
JP7722799B2 (ja) 2025-08-13
CN114375571A (zh) 2022-04-19
US11711532B2 (en) 2023-07-25
US20210392355A1 (en) 2021-12-16
KR20220051015A (ko) 2022-04-25

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