MX2022008006A - Métodos y aparatos para remuestrear imagen de referencia. - Google Patents

Métodos y aparatos para remuestrear imagen de referencia.

Info

Publication number
MX2022008006A
MX2022008006A MX2022008006A MX2022008006A MX2022008006A MX 2022008006 A MX2022008006 A MX 2022008006A MX 2022008006 A MX2022008006 A MX 2022008006A MX 2022008006 A MX2022008006 A MX 2022008006A MX 2022008006 A MX2022008006 A MX 2022008006A
Authority
MX
Mexico
Prior art keywords
decoder
video block
reference picture
sampling filter
apparatuses
Prior art date
Application number
MX2022008006A
Other languages
English (en)
Inventor
Xianglin Wang
Xiaoyu Xiu
Yi- Wen Chen
Hong- Jheng Jhu
Tsung- Chuan MA
Bing Yu
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 MX2022008006A publication Critical patent/MX2022008006A/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
    • H04N19/132—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
    • H04N19/102—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
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • 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
    • H04N19/103—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
    • 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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • H04N19/426—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements using memory downsizing methods
    • H04N19/428—Recompression, e.g. by spatial or temporal decimation
    • 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
    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
    • 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
    • H04N19/50—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
    • 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

Se proporcionan métodos, aparatos y medios de almacenamiento legibles en computadora no transitorios para decodificar una señal de video; un decodificador obtiene una imagen de referencia asociada con un bloque de video dentro de la señal de video; el decodificador además puede obtener muestras de referencia del bloque de video a partir de un bloque de referencia en la imagen de referencia ; el decodificador también puede obtener un primer filtro de muestreo hacia abajo y un segundo filtro de muestreo hacia abajo para generar respectivamente muestras de interpredicción de brillo y color del bloque de video; el decodificador además puede obtener un tercer filtro de muestreo hacia abajo y un cuarto filtro de muestreo hacia abajo para generar respectivamente muestras de interpredicción de brillo y color del bloque de video cuando el bloque de video se codifica por modo afín; el decodificador también puede obtener muestras de interpredicción del bloque de video con base en el tercer y cuarto filtros de muestreo hacia abajo siendo aplicados a las muestras de referencia .
MX2022008006A 2019-12-24 2020-12-24 Métodos y aparatos para remuestrear imagen de referencia. MX2022008006A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962953471P 2019-12-24 2019-12-24
PCT/US2020/067017 WO2021134017A1 (en) 2019-12-24 2020-12-24 Methods and apparatuses for reference picture resampling

Publications (1)

Publication Number Publication Date
MX2022008006A true MX2022008006A (es) 2022-09-26

Family

ID=76575160

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2022008006A MX2022008006A (es) 2019-12-24 2020-12-24 Métodos y aparatos para remuestrear imagen de referencia.

Country Status (7)

Country Link
US (1) US20230025503A1 (es)
EP (1) EP4082195A4 (es)
JP (2) JP7239786B2 (es)
KR (3) KR20230175350A (es)
CN (2) CN115176464A (es)
MX (1) MX2022008006A (es)
WO (1) WO2021134017A1 (es)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102438135B (zh) * 2011-01-14 2013-12-04 展讯通信（上海）有限公司 高分辨率视频在小尺寸显示设备上的降采样解码方法及装置
PL3448025T3 (pl) 2011-06-28 2020-04-30 Samsung Electronics Co., Ltd. Interpolacja obrazu z wykorzystaniem asymetrycznego filtru interpolacyjnego
GB2512829B (en) * 2013-04-05 2015-05-27 Canon Kk Method and apparatus for encoding or decoding an image with inter layer motion information prediction according to motion information compression scheme
EP3149943B1 (en) * 2014-05-28 2022-08-31 ARRIS Enterprises LLC Content aware scheduling in a hevc decoder operating on a multi-core processor platform
MX2018003768A (es) * 2015-09-25 2018-09-12 Huawei Tech Co Ltd Aparato y metodo para compensacion de movimiento de video con filtro de interpolacion seleccionable.
CN108781291B (zh) * 2016-01-25 2022-03-22 皇家Kpn公司 空间可缩放视频编码
US11025903B2 (en) * 2017-01-13 2021-06-01 Qualcomm Incorporated Coding video data using derived chroma mode
WO2019194647A1 (ko) * 2018-04-06 2019-10-10 가온미디어 주식회사 필터 정보 기반의 적응적 루프 필터링 방법, 그를 이용한 영상 부호화 및 복호화 방법
CN114097222A (zh) * 2019-06-23 2022-02-25 夏普株式会社 用于在视频编码中执行自适应分辨率变化的系统和方法
CN114667734A (zh) * 2019-09-23 2022-06-24 阿里巴巴集团控股有限公司 通过重采样执行运动补偿插值的滤波器

Also Published As

Publication number Publication date
KR20220110331A (ko) 2022-08-05
CN116506610B (zh) 2024-06-18
JP2023065601A (ja) 2023-05-12
KR102617470B1 (ko) 2023-12-21
JP7239786B2 (ja) 2023-03-14
CN116506610A (zh) 2023-07-28
KR20230175350A (ko) 2023-12-29
EP4082195A4 (en) 2023-06-28
CN115176464A (zh) 2022-10-11
JP2022552436A (ja) 2022-12-15
KR20240005131A (ko) 2024-01-11
US20230025503A1 (en) 2023-01-26
EP4082195A1 (en) 2022-11-02
WO2021134017A1 (en) 2021-07-01

Similar Documents

Publication Publication Date Title
US11303889B2 (en) Encoder-side decisions for sample adaptive offset filtering
US12081779B2 (en) Rules for intra-picture prediction modes when wavefront parallel processing is enabled
US11563950B2 (en) Parsing friendly and error resilient merge flag coding in video coding
US11388433B2 (en) Block vector prediction in video and image coding/decoding
US20220030251A1 (en) Unified intra block copy and inter prediction modes
US11184631B2 (en) Flexible band offset mode in sample adaptive offset in HEVC
US20190098304A1 (en) Mode adaptive intra prediction smoothing in video coding
AU2014388185B2 (en) Adjusting quantization/scaling and inverse quantization/scaling when switching color spaces
US20120177104A1 (en) Reduced Complexity Adaptive Loop Filter (ALF) for Video Coding
JP2017513326A (ja) ピクセル距離を使用したデブロックフィルタ処理
KR102632259B1 (ko) 교차-성분 선형 모델을 사용하는 비디오 코딩
CA3112913C (en) Method and apparatus for intra prediction of image or video coding
TW202031041A (zh) 廣角內預測平滑及內插
US20220191548A1 (en) Picture prediction method, encoder, decoder and storage medium
CN107197314B (zh) 编码图像单元以及解码表示图像单元的流的方法和设备
MX2021014221A (es) Se?alizacion de derivacion de diferencia de vector de movimiento.
MX2022003220A (es) Metodos y aparatos para refinamiento de prediccion con flujo optico.
JP2022535025A (ja) ビデオ符号化および復号における空間スケーラビリティのサポート
US20160261875A1 (en) Video stream processing method and video processing apparatus thereof
MX2022008006A (es) Métodos y aparatos para remuestrear imagen de referencia.
MX2022004216A (es) Metodo y aparato de codificacion/decodificacion de imagenes y medio de grabacion que almacena flujo de bits.
CN114424554B (zh) 色度qp偏移表指示和推导的方法和装置
US20160330486A1 (en) Method and apparatus for processing video signal for reducing visibility of blocking artifacts
RU2022116245A (ru) Флаги фильтра для устранения блочности субкартинок
RU2022116246A (ru) Флаги фильтра для устранения блочности субкартинок