CL2020001785A1 - Selección de transformación en un codificador de vídeo y / o un decodificador de vídeo. - Google Patents

Selección de transformación en un codificador de vídeo y / o un decodificador de vídeo.

Info

Publication number
CL2020001785A1
CL2020001785A1 CL2020001785A CL2020001785A CL2020001785A1 CL 2020001785 A1 CL2020001785 A1 CL 2020001785A1 CL 2020001785 A CL2020001785 A CL 2020001785A CL 2020001785 A CL2020001785 A CL 2020001785A CL 2020001785 A1 CL2020001785 A1 CL 2020001785A1
Authority
CL
Chile
Prior art keywords
transformation
video
selection
decoder
encoder
Prior art date
Application number
CL2020001785A
Other languages
English (en)
Inventor
Ruoyang Yu
Zhi Zhang
Rickard Sjöberg
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of CL2020001785A1 publication Critical patent/CL2020001785A1/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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • H04N19/45—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder performing compensation of the inverse transform mismatch, e.g. Inverse Discrete Cosine Transform [IDCT] mismatch
    • 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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
    • 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
    • H04N19/60—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

Landscapes

  • 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)

Abstract

Un proceso para seleccionar un conjunto de transformación para un bloque de predicción. El proceso puede usarse tanto en un codificador como en un decodificador. Por ejemplo, el proceso puede usarse tanto en un codificador como en un decodificador para un bloque de predicción que se ha pronosticado a partir de un bloque de referencia. En algunas modalidades, tanto el bloque de predicción como el bloque de referencia son bloques intra.
CL2020001785A 2018-07-13 2020-07-02 Selección de transformación en un codificador de vídeo y / o un decodificador de vídeo. CL2020001785A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201862697484P 2018-07-13 2018-07-13

Publications (1)

Publication Number Publication Date
CL2020001785A1 true CL2020001785A1 (es) 2020-10-09

Family

ID=67439185

Family Applications (1)

Application Number Title Priority Date Filing Date
CL2020001785A CL2020001785A1 (es) 2018-07-13 2020-07-02 Selección de transformación en un codificador de vídeo y / o un decodificador de vídeo.

Country Status (14)

Country Link
US (4) US11218716B2 (es)
EP (2) EP3843395A1 (es)
JP (1) JP6934572B2 (es)
KR (1) KR102226462B1 (es)
CN (1) CN111567041B (es)
BR (1) BR112020012295A2 (es)
CA (1) CA3090207C (es)
CL (1) CL2020001785A1 (es)
DK (1) DK3707898T3 (es)
ES (1) ES2864670T3 (es)
MX (1) MX2020006114A (es)
PH (1) PH12020551004A1 (es)
PL (1) PL3707898T3 (es)
WO (1) WO2020011860A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11218716B2 (en) 2018-07-13 2022-01-04 Telefonaktiebolaget Lm Ericsson (Publ) Transform selection in a video encoder and/or video decoder
KR20230062685A (ko) * 2019-10-29 2023-05-09 엘지전자 주식회사 변환에 기반한 영상 코딩 방법 및 그 장치
WO2021086064A1 (ko) * 2019-10-29 2021-05-06 엘지전자 주식회사 변환에 기반한 영상 코딩 방법 및 그 장치
WO2021134635A1 (zh) * 2019-12-31 2021-07-08 Oppo广东移动通信有限公司 变换方法、编码器、解码器以及存储介质
WO2022220546A1 (ko) * 2021-04-12 2022-10-20 엘지전자 주식회사 저주파 비분리 변환 설계 방법 및 장치
WO2024044404A1 (en) * 2022-08-26 2024-02-29 Beijing Dajia Internet Information Technology Co., Ltd. Methods and devices using intra block copy for video coding
US20240187620A1 (en) * 2022-10-20 2024-06-06 Tencent America LLC Transform selection through block matching

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
WO1994022108A1 (en) * 1993-03-23 1994-09-29 Zoran Corporation Rapid thumbnail image reconstruction of dct compressed image data
US7751478B2 (en) * 2005-01-21 2010-07-06 Seiko Epson Corporation Prediction intra-mode selection in an encoder
CA2840488A1 (en) 2011-06-28 2013-01-03 Samsung Electronics Co., Ltd. Prediction method and apparatus for chroma component of image using luma component of image
US8929455B2 (en) * 2011-07-01 2015-01-06 Mitsubishi Electric Research Laboratories, Inc. Method for selecting transform types from mapping table for prediction modes
RU2626014C1 (ru) * 2011-10-19 2017-07-21 Кт Корпорейшен Способ декодирования видеосигнала
CN109218730B (zh) * 2012-01-19 2023-07-28 华为技术有限公司 用于lm帧内预测的参考像素缩减
CN107707920B (zh) 2012-04-16 2021-06-01 韩国电子通信研究院 用于解码视频信号的方法
US10306229B2 (en) 2015-01-26 2019-05-28 Qualcomm Incorporated Enhanced multiple transforms for prediction residual
US20160286241A1 (en) * 2015-03-24 2016-09-29 Nokia Technologies Oy Apparatus, a method and a computer program for video coding and decoding
US10681379B2 (en) 2015-09-29 2020-06-09 Qualcomm Incorporated Non-separable secondary transform for video coding with reorganizing
US10972733B2 (en) * 2016-07-15 2021-04-06 Qualcomm Incorporated Look-up table for enhanced multiple transform
US10728548B2 (en) * 2017-04-04 2020-07-28 Futurewei Technologies, Inc. Processing reference samples used for intra-prediction of a picture block
US10623738B2 (en) * 2017-04-06 2020-04-14 Futurewei Technologies, Inc. Noise suppression filter
US11218716B2 (en) 2018-07-13 2022-01-04 Telefonaktiebolaget Lm Ericsson (Publ) Transform selection in a video encoder and/or video decoder

Also Published As

Publication number Publication date
CA3090207A1 (en) 2020-01-16
MX2020006114A (es) 2020-08-24
US11218716B2 (en) 2022-01-04
EP3843395A1 (en) 2021-06-30
US20230239486A1 (en) 2023-07-27
JP2021513230A (ja) 2021-05-20
US20240214596A1 (en) 2024-06-27
US20200186815A1 (en) 2020-06-11
BR112020012295A2 (pt) 2020-11-24
EP3707898A1 (en) 2020-09-16
PH12020551004A1 (en) 2021-09-06
ES2864670T3 (es) 2021-10-14
CA3090207C (en) 2022-03-15
WO2020011860A1 (en) 2020-01-16
PL3707898T3 (pl) 2021-10-04
US11627329B2 (en) 2023-04-11
US20220078459A1 (en) 2022-03-10
DK3707898T3 (da) 2021-05-03
KR102226462B1 (ko) 2021-03-10
CN111567041A (zh) 2020-08-21
KR20200085917A (ko) 2020-07-15
JP6934572B2 (ja) 2021-09-15
CN111567041B (zh) 2022-04-29
EP3707898B1 (en) 2021-03-17
US11882302B2 (en) 2024-01-23

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