MX2022003471A - Metodos y dispositivos para dise?o de cuantificacion y descuantificacion en codificacion de video. - Google Patents

Metodos y dispositivos para dise?o de cuantificacion y descuantificacion en codificacion de video.

Info

Publication number
MX2022003471A
MX2022003471A MX2022003471A MX2022003471A MX2022003471A MX 2022003471 A MX2022003471 A MX 2022003471A MX 2022003471 A MX2022003471 A MX 2022003471A MX 2022003471 A MX2022003471 A MX 2022003471A MX 2022003471 A MX2022003471 A MX 2022003471A
Authority
MX
Mexico
Prior art keywords
quantization
video coding
methods
devices
design
Prior art date
Application number
MX2022003471A
Other languages
English (en)
Inventor
Xianglin Wang
Xiaoyu Xiu
Yi-Wen Chen
Tsung-Chuan Ma
Bing Yu
Hong-Jheng Jhu
Original Assignee
Beijing Dajia Internet Information Tech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Dajia Internet Information Tech Co Ltd filed Critical Beijing Dajia Internet Information Tech Co Ltd
Publication of MX2022003471A publication Critical patent/MX2022003471A/es

Links

Classifications

    • 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
    • H04N19/102—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
    • H04N19/119—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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • 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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • 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
    • H04N19/157—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
    • 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
    • H04N19/17—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
    • H04N19/186—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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • 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)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

Se proporciona un método para codificación de video. El método incluye: determinar un parámetro de cuantificación para datos restantes de una unidad de codificación (CU); derivar un valor de escala mediante el escalamiento del parámetro de cuantificación por un factor de escala; determinar una pluralidad de coeficientes asociados con la CU; determinar una pluralidad de parámetros asociados con la CU; obtener una pluralidad de desplazamientos de bit mediante el desplazamiento de bit de la pluralidad de parámetros; y obtener un nivel cuantificado con base en el valor de escala, la pluralidad de coeficientes, y la pluralidad de desplazamientos de bit.
MX2022003471A 2019-09-23 2020-09-23 Metodos y dispositivos para dise?o de cuantificacion y descuantificacion en codificacion de video. MX2022003471A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962904668P 2019-09-23 2019-09-23
PCT/US2020/052175 WO2021061744A1 (en) 2019-09-23 2020-09-23 Methods and devices for quantization and de-quantization design in video coding

Publications (1)

Publication Number Publication Date
MX2022003471A true MX2022003471A (es) 2022-04-19

Family

ID=75167108

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2022003471A MX2022003471A (es) 2019-09-23 2020-09-23 Metodos y dispositivos para dise?o de cuantificacion y descuantificacion en codificacion de video.

Country Status (7)

Country Link
US (1) US20220217349A1 (es)
EP (1) EP4035368A4 (es)
JP (2) JP7382494B6 (es)
KR (4) KR102571893B1 (es)
CN (2) CN114450948A (es)
MX (1) MX2022003471A (es)
WO (1) WO2021061744A1 (es)

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2805492B1 (en) * 2012-01-19 2018-11-14 VID SCALE, Inc. System and method of video coding quantization and dynamic range control
US9635371B2 (en) * 2013-05-31 2017-04-25 Qualcomm Incorporated Determining rounding offset using scaling factor in picture resampling
US10708588B2 (en) * 2013-06-19 2020-07-07 Apple Inc. Sample adaptive offset control
EP4366308A2 (en) * 2013-06-28 2024-05-08 Velos Media International Limited Methods and devices for emulating low-fidelity coding in a high-fidelity coder
US10038915B2 (en) * 2014-05-22 2018-07-31 Qualcomm Incorporated Escape sample coding in palette-based video coding
CN110099277B (zh) * 2014-05-23 2021-06-25 寰发股份有限公司 调色板大小发信和有条件的调色板例外标志发信的方法
US10382749B2 (en) * 2014-05-23 2019-08-13 Qualcomm Incorporated Coding run values based on palette index in palette-based video coding
US10136141B2 (en) * 2014-06-11 2018-11-20 Qualcomm Incorporated Determining quantization parameter (QP) values and delta QP values for palette coded blocks in video coding
US10477204B2 (en) * 2014-06-20 2019-11-12 Sharp Kabushiki Kaisha Harmonized palette coding
RU2686559C2 (ru) * 2015-01-29 2019-04-29 Кэнон Кабусики Кайся Инициализатор предсказателя палитры при кодировании или декодировании самостоятельных кодируемых структур
WO2016123262A1 (en) 2015-01-29 2016-08-04 Vid Scale, Inc. Escape color coding for palette coding mode
CN106664405B (zh) * 2015-06-09 2020-06-09 微软技术许可有限责任公司 用调色板模式对经逸出编码的像素的稳健编码/解码
US10097842B2 (en) * 2015-09-18 2018-10-09 Qualcomm Incorporated Restriction of escape pixel signaled values in palette mode video coding
KR20180074150A (ko) * 2016-12-23 2018-07-03 삼성전자주식회사 Sao 필터링을 포함하는 비디오 데이터의 부호화를 위한 방법 및 장치
KR102521034B1 (ko) 2019-08-15 2023-04-13 베이징 다지아 인터넷 인포메이션 테크놀로지 컴퍼니 리미티드 팔레트 모드를 이용한 비디오 코딩의 방법 및 장치
KR20240056668A (ko) 2019-08-26 2024-04-30 엘지전자 주식회사 팔레트 모드 기반 영상 또는 비디오 코딩

Also Published As

Publication number Publication date
CN114827605A (zh) 2022-07-29
KR20230127375A (ko) 2023-08-31
JP7382494B6 (ja) 2023-11-29
CN114450948A (zh) 2022-05-06
KR20230006060A (ko) 2023-01-10
WO2021061744A1 (en) 2021-04-01
JP7382494B2 (ja) 2023-11-16
JP2022541076A (ja) 2022-09-21
JP2023162319A (ja) 2023-11-08
US20220217349A1 (en) 2022-07-07
KR102571893B1 (ko) 2023-08-28
KR20220054900A (ko) 2022-05-03
EP4035368A1 (en) 2022-08-03
KR102487062B1 (ko) 2023-01-09
EP4035368A4 (en) 2022-11-30
KR20230125862A (ko) 2023-08-29

Similar Documents

Publication Publication Date Title
PH12017501640B1 (en) Video encoding method with bit depth adjustment for fixed-point conversion and apparatus therefor, and video decoding method and apparatus therefor.
MY163789A (en) Image processing apparatus and method
MX2020005044A (es) Aparato y metodo para codificar o decodificar parametros de codificacion de audio direccional utilizando diferentes resoluciones de tiempo/frecuencia.
MX2023005933A (es) Metodo de codificacion/decodificacion de imagenes y dispositivo para el mismo.
PH12016502373A1 (en) Block adaptive color-space conversion coding
MY169660A (en) Image processing device and image processing method
GB2574733A (en) Improved video bitstream coding
TW201613352A (en) Inter-component de-correlation for video coding
MX2016011596A (es) Parametros de cuantificacion para codificacion de conversion de espacio de color.
AU2024202188A1 (en) Method for coding transform coefficient on basis of high frequency zeroing and apparatus therefor
MY180423A (en) Signal encoding method and apparatus, and signal decoding method and apparatus
MY163448A (en) Method and apparatus for encoding and decoding coding unit of picture boundary
EP2985700A3 (en) Video encoding method and device and decoding method and device
WO2011126272A3 (en) Method and apparatus for encoding video by using dynamic-range transformation, and method and apparatus for decoding video by using dynamic-range transformation
MY185457A (en) Parameter update method for entropy coding and decoding of conversion coefficient level, and entropy coding device and entropy decoding device of conversion coefficient level using same
IN2014MN01846A (es)
MX2016013225A (es) Sistema y metodo para seleccionar un parametro de cuantificacion (qp) en compresion de flujo de visualizacion (dsc).
MY168865A (en) Image processing device and method
MX2022004026A (es) Metodos y aparatos de codificacion residual y de coeficiente.
EP4283999A3 (en) Video decoding method, and video decoder
EP4293666A3 (en) Signal encoding method and apparatus and signal decoding method and apparatus
MX2021011333A (es) Cuantificación de residuos en codificación de vídeo.
MX2016004643A (es) Dispositivo y metodo para codificacion escalable de informacion de video.
MX2022001059A (es) Metodos y aparato de codificacion residual y de coeficientes.
GB201107947D0 (en) Hybrid coded audio data streaming apparatus and method