MY210491A - Method and apparatus for improved implicit transform selection - Google Patents

Method and apparatus for improved implicit transform selection

Info

Publication number
MY210491A
MY210491A MYPI2021005923A MYPI2021005923A MY210491A MY 210491 A MY210491 A MY 210491A MY PI2021005923 A MYPI2021005923 A MY PI2021005923A MY PI2021005923 A MYPI2021005923 A MY PI2021005923A MY 210491 A MY210491 A MY 210491A
Authority
MY
Malaysia
Prior art keywords
transform
signaling information
primary
lfnst
mip
Prior art date
Application number
MYPI2021005923A
Inventor
Shan Liu
Xin Zhao
Xiang Li
Original Assignee
Tencent America LLC
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 Tencent America LLC filed Critical Tencent America LLC
Publication of MY210491A publication Critical patent/MY210491A/en

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
    • H04N19/103—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
    • H04N19/102—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
    • H04N19/102—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
    • H04N19/134—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
    • 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
    • H04N19/44—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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]

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

According to an aspect of the disclosure, a method of video decoding for a decoder is provided. In the method, transform block signaling information is acquired from a coded video bitstream. In addition, a determination is made to determine whether the transform block signaling information indicates an implicit transform scheme, and at least one of a low-frequency non-separable transform, LFNST, and a matrix-based intra predication mode, MIP, is invalid. In response to the determination that the transform block signaling information indicates the implicit transform scheme, and at least one of the LFNST and MIP is signaled as invalid, a primary transform type is determined based on a size of a coding block unit, CU, and a primary transform is performed for a transform block that is partitioned from the CU in accordance with the determined primary transform type.
MYPI2021005923A 2019-06-07 2020-06-01 Method and apparatus for improved implicit transform selection MY210491A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962858887P 2019-06-07 2019-06-07
US16/883,545 US11212545B2 (en) 2019-06-07 2020-05-26 Method and apparatus for improved implicit transform selection
PCT/US2020/035529 WO2020247306A1 (en) 2019-06-07 2020-06-01 Method and apparatus for improved implicit transform selection

Publications (1)

Publication Number Publication Date
MY210491A true MY210491A (en) 2025-09-25

Family

ID=73651839

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2021005923A MY210491A (en) 2019-06-07 2020-06-01 Method and apparatus for improved implicit transform selection

Country Status (10)

Country Link
US (3) US11212545B2 (en)
EP (1) EP3981153A4 (en)
JP (4) JP7279168B2 (en)
KR (2) KR20260039795A (en)
CN (2) CN117998085A (en)
AU (2) AU2020286361B2 (en)
CA (1) CA3136374A1 (en)
MY (1) MY210491A (en)
SG (1) SG11202110795TA (en)
WO (1) WO2020247306A1 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3915261A4 (en) * 2019-01-31 2023-03-01 HFI Innovation Inc. METHOD AND DEVICE FOR COMBINED INTER AND INTRA PREDICTION FOR VIDEO CODING
EP4521739A3 (en) * 2019-05-30 2025-05-07 Sharp Kabushiki Kaisha Image decoding device and method
KR102810175B1 (en) * 2019-06-06 2025-05-20 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 Image coding method based on transformation and device thereof
US11212545B2 (en) * 2019-06-07 2021-12-28 Tencent America LLC Method and apparatus for improved implicit transform selection
US11252410B2 (en) * 2019-06-11 2022-02-15 Tencent America LLC Method and apparatus for video coding
US11695960B2 (en) * 2019-06-14 2023-07-04 Qualcomm Incorporated Transform and last significant coefficient position signaling for low-frequency non-separable transform in video coding
CN115150612B (en) 2019-06-25 2025-03-11 Oppo广东移动通信有限公司 Image encoding and decoding method, encoder, decoder and storage medium
WO2021034160A1 (en) * 2019-08-22 2021-02-25 엘지전자 주식회사 Matrix intra prediction-based image coding apparatus and method
CN119743597B (en) 2019-09-09 2026-04-28 北京字节跳动网络技术有限公司 Recursive partitioning of video codec blocks
WO2021086064A1 (en) * 2019-10-29 2021-05-06 엘지전자 주식회사 Image coding method based on transform and apparatus therefor
CN119135897A (en) * 2019-11-01 2024-12-13 Lg 电子株式会社 Transformation-based method and device for compiling images
CN118945350A (en) * 2019-11-01 2024-11-12 Lg 电子株式会社 Image coding method and device based on transformation
KR20260044994A (en) * 2020-02-25 2026-04-02 엘지전자 주식회사 Image decoding method and apparatus therefor
CN113709476B (en) * 2020-06-05 2022-12-23 杭州海康威视数字技术股份有限公司 Encoding method, decoding method, device and machine readable storage medium
US12355942B2 (en) * 2020-06-18 2025-07-08 Interdigital Ce Patent Holdings, Sas Adapting the transform process to neural network-based intra prediction mode
CN113207002B (en) * 2021-02-21 2022-07-26 腾讯科技（深圳）有限公司 Video encoding and decoding method and device, computer readable medium and electronic equipment
US12452423B2 (en) * 2021-12-03 2025-10-21 Intel Corporation Low frequency non-separable transform and multiple transform selection deadlock prevention
CN118511519A (en) * 2022-01-07 2024-08-16 联发科技股份有限公司 Transforming a codec signal
EP4670357A1 (en) * 2023-02-24 2025-12-31 Mediatek Inc. METHOD AND DEVICE FOR TRANSFORMATION SELECTION BASED ON INTRAPREACTION MODE IN A VIDEO CODING SYSTEM
CN122162378A (en) * 2023-10-06 2026-06-05 Oppo广东移动通信有限公司 Systems and methods for non-separable transforms for inter-frame prediction in video coding
EP4661397A1 (en) * 2024-06-06 2025-12-10 InterDigital CE Patent Holdings, SAS Implicit transform derivation
WO2026037301A1 (en) * 2024-08-12 2026-02-19 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method and apparatus for non-separable transofrms for video coding
CN119545059B (en) * 2024-11-19 2025-06-20 黄山市富昊斯光电科技有限公司 A multi-screen display method and system for video images

Family Cites Families (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7330509B2 (en) 2003-09-12 2008-02-12 International Business Machines Corporation Method for video transcoding with adaptive frame rate control
US8238442B2 (en) 2006-08-25 2012-08-07 Sony Computer Entertainment Inc. Methods and apparatus for concealing corrupted blocks of video data
US8085852B2 (en) 2007-06-26 2011-12-27 Mitsubishi Electric Research Laboratories, Inc. Inverse tone mapping for bit-depth scalable image coding
US7983496B2 (en) 2007-06-26 2011-07-19 Mitsubishi Electric Research Laboratories, Inc. Inverse tone mapping for bit-depth scalable image coding adapted to variable block sizes
US8526495B2 (en) 2010-11-22 2013-09-03 Mediatek Singapore Pte. Ltd. Apparatus and method of constrained partition size for high efficiency video coding
US9049452B2 (en) 2011-01-25 2015-06-02 Mediatek Singapore Pte. Ltd. Method and apparatus for compressing coding unit in high efficiency video coding
US9380319B2 (en) 2011-02-04 2016-06-28 Google Technology Holdings LLC Implicit transform unit representation
US9788019B2 (en) 2011-03-09 2017-10-10 Hfi Innovation Inc. Method and apparatus of transform unit partition with reduced complexity
EP2745519B1 (en) 2011-08-17 2017-09-27 MediaTek Singapore Pte Ltd. Method and apparatus for intra prediction using non-square blocks
US9467701B2 (en) 2012-04-05 2016-10-11 Qualcomm Incorporated Coded block flag coding
GB2501535A (en) 2012-04-26 2013-10-30 Sony Corp Chrominance Processing in High Efficiency Video Codecs
WO2013174254A1 (en) 2012-05-21 2013-11-28 Mediatek Singapore Pte. Ltd. Method and apparatus of inter-layer filtering for scalable video coding
EP3069514B1 (en) 2013-11-14 2021-01-06 HFI Innovation Inc. Method of video coding using prediction based on intra picture block copy
WO2016050219A1 (en) 2014-09-30 2016-04-07 Mediatek Inc. Method of adaptive motion vetor resolution for video coding
US10306229B2 (en) 2015-01-26 2019-05-28 Qualcomm Incorporated Enhanced multiple transforms for prediction residual
EP3243330B1 (en) 2015-02-13 2021-10-27 MediaTek Inc. Method for palette syntax coding in video and image compression
CN107534773B (en) 2015-04-29 2020-07-03 寰发股份有限公司 A method and device for encoding and decoding video data
CN107615762B (en) 2015-05-29 2020-06-26 寰发股份有限公司 Method and device for managing decoding image buffer and decoding video bit stream
AU2016343499B2 (en) 2015-10-19 2019-08-29 Hfi Innovation Inc. Method and apparatus for decoded picture buffer management in video coding system using intra block copy
US20170150176A1 (en) * 2015-11-25 2017-05-25 Qualcomm Incorporated Linear-model prediction with non-square prediction units in video coding
EP3457691A1 (en) 2016-05-13 2019-03-20 Sharp Kabushiki Kaisha Image decoding device and image encoding device
US10397569B2 (en) 2016-06-03 2019-08-27 Mediatek Inc. Method and apparatus for template-based intra prediction in image and video coding
US10582195B2 (en) 2017-06-02 2020-03-03 Futurewei Technologies, Inc. Intra prediction using unequal weight planar prediction
WO2019009129A1 (en) 2017-07-03 2019-01-10 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ Coding device, decoding device, coding method and decoding method
US10595019B2 (en) 2017-09-20 2020-03-17 Futurewei Technologies, Inc. Noise suppression filter parameter estimation for video coding
US10609384B2 (en) 2017-09-21 2020-03-31 Futurewei Technologies, Inc. Restriction on sub-block size derivation for affine inter prediction
WO2019069782A1 (en) 2017-10-06 2019-04-11 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ Encoding device, decoding device, encoding method and decoding method
US10432929B2 (en) 2018-02-12 2019-10-01 Tencent America LLC Method and apparatus for multiple line intra prediction in video compression
US10567801B2 (en) 2018-03-07 2020-02-18 Tencent America LLC Method and apparatus for video coding with primary and secondary transforms
US10609402B2 (en) 2018-05-02 2020-03-31 Tencent America LLC Method and apparatus for prediction and transform for small blocks
US10536720B2 (en) 2018-05-07 2020-01-14 Tencent America LLC Method, apparatus and medium for decoding or encoding
US10462486B1 (en) 2018-05-07 2019-10-29 Tencent America, Llc Fast method for implementing discrete sine transform type VII (DST 7)
US10587885B2 (en) 2018-06-04 2020-03-10 Tencent America LLC Method and apparatus for merge mode with additional middle candidates in video coding
US10567752B2 (en) 2018-07-02 2020-02-18 Tencent America LLC Method and apparatus for intra prediction for non-square blocks in video compression
US10609403B2 (en) 2018-07-09 2020-03-31 Tencent America LLC Method and apparatus for block partition with non-uniform quad split
ES3016332T3 (en) 2018-12-19 2025-05-08 Lg Electronics Inc Video coding method on basis of secondary transform, and device for same
SG11202113262WA (en) * 2019-05-31 2021-12-30 Interdigital Vc Holdings Inc Transform selection for implicit multiple transform selection
WO2020244661A1 (en) * 2019-06-06 2020-12-10 Beijing Bytedance Network Technology Co., Ltd. Implicit selection of transform candidates
US11212545B2 (en) * 2019-06-07 2021-12-28 Tencent America LLC Method and apparatus for improved implicit transform selection

Also Published As

Publication number Publication date
AU2020286361B2 (en) 2023-02-23
US11831889B2 (en) 2023-11-28
JP2023090947A (en) 2023-06-29
CA3136374A1 (en) 2020-12-10
AU2023202827B2 (en) 2024-05-02
CN117998085A (en) 2024-05-07
US20220124356A1 (en) 2022-04-21
EP3981153A1 (en) 2022-04-13
JP7279168B2 (en) 2023-05-22
JP2022516732A (en) 2022-03-02
JP7521061B2 (en) 2024-07-23
KR20210111857A (en) 2021-09-13
EP3981153A4 (en) 2023-05-10
JP2024133137A (en) 2024-10-01
US20200389661A1 (en) 2020-12-10
CN113615187B (en) 2023-12-22
US20240048745A1 (en) 2024-02-08
SG11202110795TA (en) 2021-10-28
CN113615187A (en) 2021-11-05
KR20260039795A (en) 2026-03-20
JP2025120309A (en) 2025-08-15
AU2020286361A1 (en) 2021-10-28
US11212545B2 (en) 2021-12-28
KR102934503B1 (en) 2026-03-06
JP7695449B2 (en) 2025-06-18
AU2023202827A1 (en) 2023-05-25
WO2020247306A1 (en) 2020-12-10

Similar Documents

Publication Publication Date Title
MX2022010390A (en) Methods and apparatus for secondary transform signaling in video coding.
MX2021003167A (en) A video encoder, a video decoder and corresponding methods.
MX2025001545A (en) An encoder, a decoder and corresponding methods harmonzting matrix-based intra prediction and secoundary transform core selection
MX2022003559A (en) IMAGE HEADER SIGNALING IN VIDEO ENCODING.
GB2588004A (en) Interaction between IBC and affine
TW201130316A (en) Template matching for video coding
MX2018016070A (en) Method and apparatus for video coding with automatic motion information refinement.
PH12016502084A1 (en) Apparatus of decoding video data
EP4546773A3 (en) Use-case driven context model selection for hybrid video coding tools
ZA202105022B (en) Tree-based transform unit (tu) partition for video coding
FI3849190T3 (en) Syntax design method and apparatus for performing coding by using syntax
MX2016011589A (en) Block adaptive color-space conversion coding.
JP2015516758A5 (en)
JP2015019152A5 (en)
WO2020102173A3 (en) Method and apparatus for improved context design for prediction mode and coded block flag (cbf)
FI4002843T3 (en) Image encoding/decoding method and device for signaling chroma component prediction information according to whether palette mode is applicable, and method for transmitting bitstream
MX2025000991A (en) An encoder, a decoder and corresponding methods of chroma intra mode derivation
JP2016519501A5 (en)
MX2022006867A (en) Image encoding method and device, and image decoding method and device.
FI3939290T3 (en) Interlaced video coding with leading pictures
MX2022003406A (en) Method and apparatus of residual coding selection for lossless coding mode in video coding.
MX2025008499A (en) Prediction mode signaling in video coding
PH12022550670A1 (en) Coding scheme for depth data
EP4604550A3 (en) Method and apparatus for signaling sub-block transform information
MX2021008408A (en) Encoder, decoder and corresponding methods using dct2 enabled high level flag.