JP7223014B2 - 縮小された変換を用いて、ビデオ信号を処理する方法及び装置 - Google Patents
縮小された変換を用いて、ビデオ信号を処理する方法及び装置 Download PDFInfo
- Publication number
- JP7223014B2 JP7223014B2 JP2020541390A JP2020541390A JP7223014B2 JP 7223014 B2 JP7223014 B2 JP 7223014B2 JP 2020541390 A JP2020541390 A JP 2020541390A JP 2020541390 A JP2020541390 A JP 2020541390A JP 7223014 B2 JP7223014 B2 JP 7223014B2
- Authority
- JP
- Japan
- Prior art keywords
- transform
- block
- index
- primary
- current block
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 102
- 238000012545 processing Methods 0.000 title description 7
- 230000009466 transformation Effects 0.000 claims description 65
- 238000013139 quantization Methods 0.000 description 38
- 239000011159 matrix material Substances 0.000 description 35
- 230000008569 process Effects 0.000 description 34
- 239000013598 vector Substances 0.000 description 32
- 238000010586 diagram Methods 0.000 description 28
- 241000023320 Luma <angiosperm> Species 0.000 description 15
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 description 15
- 241000282596 Hylobatidae Species 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 12
- 238000001914 filtration Methods 0.000 description 10
- 230000009467 reduction Effects 0.000 description 9
- 238000000844 transformation Methods 0.000 description 9
- 238000012546 transfer Methods 0.000 description 8
- 230000003044 adaptive effect Effects 0.000 description 7
- 101150089388 dct-5 gene Proteins 0.000 description 7
- 238000000638 solvent extraction Methods 0.000 description 6
- 208000037170 Delayed Emergence from Anesthesia Diseases 0.000 description 5
- 238000005457 optimization Methods 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 101150090341 dst1 gene Proteins 0.000 description 2
- 239000013074 reference sample Substances 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 101100278585 Dictyostelium discoideum dst4 gene Proteins 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- 239000004984 smart glass Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Images
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
- H04N19/12—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
- H04N19/12—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
- H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
-
- 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
- H04N19/10—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
- H04N19/134—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
- H04N19/146—Data rate or code amount at the encoder output
- H04N19/147—Data rate or code amount at the encoder output according to rate distortion criteria
-
- 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
- H04N19/46—Embedding additional information in the video signal during the compression process
-
- 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
-
- 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]
-
- 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
-
- 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
- H04N19/169—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
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)
- Television Systems (AREA)
- Color Television Systems (AREA)
- Television Signal Processing For Recording (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Description
(H(Gi、j)、V(Gi、j))
DCT type 2:、DCT type 8:
DST type 7:、DST type 4:
と
のような2D行列は、列ベクトル(column vector)が変換基底(transform basis)をなすことを仮定する。
とし、下側ブロックの変換係数を
とするとき
のように一つずつ交互に混ぜることができる。または、
と
の順序を変えることもできる。つまり、
が先に出るように設定することができる。
のように接続して配置することができる。または、
のように順序を変更することもできる。
Claims (7)
- 縮小された変換(Reduced transform)に基づいた、ビデオ信号のデコード方法において、
現在のブロックに変換スキップ(transform skip)が適用されるか否かを確認する段階と、
前記現在のブロックに前記変換スキップが適用されないことに基づいて、前記ビデオ信号から前記現在のブロックの変換カーネル(transform kernel)を指示する変換インデックス(transform index)を獲得する段階と、
前記変換インデックスによって指示される変換カーネル及び前記現在のブロックのサイズに基づいて、前記現在のブロックに一次変換(primary transform)が適用される領域を決定する段階と、
前記一次変換が適用される領域に対し、前記変換インデックスによって指示される変換カーネルに基づいて、逆方向一次変換(inverse primary transform)を実行する段階を含む、ビデオ信号のデコード方法。 - 前記一次変換が適用される領域を決定する段階は、
前記現在のブロック内で、前記一次変換が適用される領域以外の残りの領域の係数を0とみなす段階を含む、請求項1に記載のビデオ信号のデコード方法。 - 前記一次変換が適用される領域を決定する段階は、
前記変換インデックスによって指示される変換カーネルが予め定義された変換であり、前記現在のブロックの幅(width)、及び/または高さ(height)が予め定義されたサイズより大きいことに基づいて、前記予め定義されたサイズの幅及び/または高さを有する領域を前記一次変換が適用される領域に決定することにより実行される、請求項1に記載のビデオ信号のデコード方法。 - 前記予め定義された変換は、DST7及び/またはDCT8の組み合わせで構成された複数の変換の組み合わせの内いずれか1つである、請求項3に記載のビデオ信号のデコード方法。
- 前記予め定義されたサイズは、16である、請求項3に記載のビデオ信号のデコード方法。
- 前記一次変換が適用される領域を決定する段階は、
前記変換インデックスによって指示される変換カーネルが一次変換グループに属することに基づいて、前記現在のブロックの幅(width)及び32の内、小さい方の値を前記一次変換が適用される領域の幅と決定し、前記現在のブロックの高さ(height)及び32の内、小さい方の値を前記一次変換が適用される領域の高さと決定し、
前記変換インデックスによって指示される変換カーネルが二次変換グループに属することに基づいて、前記現在のブロックの幅と16の内、小さな値を前記一次変換が適用される領域の幅と決定し、前記現在のブロックの高さ及び16の内、小さな値を前記一次変換が適用される領域の高さと決定することにより実行される、請求項1に記載のビデオ信号のデコード方法。 - 前記一次変換グループは、DCT2を含み、前記二次変換グループはDST7及び/またはDCT8の組み合わせで構成された複数の変換の組み合わせを含む、請求項6に記載のビデオ信号のデコード方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2023015037A JP2023052876A (ja) | 2018-06-03 | 2023-02-03 | 縮小された変換を用いて、ビデオ信号を処理する方法及び装置 |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201862679939P | 2018-06-03 | 2018-06-03 | |
US201862679940P | 2018-06-03 | 2018-06-03 | |
US62/679,939 | 2018-06-03 | ||
US62/679,940 | 2018-06-03 | ||
PCT/KR2019/006675 WO2019235797A1 (ko) | 2018-06-03 | 2019-06-03 | 축소된 변환을 이용하여 비디오 신호를 처리하는 방법 및 장치 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2023015037A Division JP2023052876A (ja) | 2018-06-03 | 2023-02-03 | 縮小された変換を用いて、ビデオ信号を処理する方法及び装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021511752A JP2021511752A (ja) | 2021-05-06 |
JP7223014B2 true JP7223014B2 (ja) | 2023-02-15 |
Family
ID=68769617
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020541390A Active JP7223014B2 (ja) | 2018-06-03 | 2019-06-03 | 縮小された変換を用いて、ビデオ信号を処理する方法及び装置 |
JP2023015037A Pending JP2023052876A (ja) | 2018-06-03 | 2023-02-03 | 縮小された変換を用いて、ビデオ信号を処理する方法及び装置 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2023015037A Pending JP2023052876A (ja) | 2018-06-03 | 2023-02-03 | 縮小された変換を用いて、ビデオ信号を処理する方法及び装置 |
Country Status (12)
Country | Link |
---|---|
US (3) | US11284097B2 (ja) |
EP (2) | EP3806476B1 (ja) |
JP (2) | JP7223014B2 (ja) |
KR (3) | KR102659354B1 (ja) |
CN (3) | CN115379216A (ja) |
ES (1) | ES2949998T3 (ja) |
FI (1) | FI3806476T3 (ja) |
HR (1) | HRP20230521T1 (ja) |
HU (1) | HUE063012T2 (ja) |
PL (1) | PL3806476T3 (ja) |
SI (1) | SI3806476T1 (ja) |
WO (1) | WO2019235797A1 (ja) |
Families Citing this family (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019027241A1 (ko) * | 2017-07-31 | 2019-02-07 | 한국전자통신연구원 | 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체 |
BR112020005097A2 (pt) * | 2017-09-28 | 2020-09-15 | Samsung Electronics Co., Ltd. | método de decodificação de vídeo, aparelho de decodificação de vídeo, método de codificação de vídeo, e aparelho de codificação de vídeo |
WO2020035829A1 (en) * | 2018-08-16 | 2020-02-20 | Beijing Bytedance Network Technology Co., Ltd. | Coefficient dependent coding of transform matrix selection |
JP7223014B2 (ja) * | 2018-06-03 | 2023-02-15 | エルジー エレクトロニクス インコーポレイティド | 縮小された変換を用いて、ビデオ信号を処理する方法及び装置 |
WO2019235891A1 (ko) * | 2018-06-08 | 2019-12-12 | 주식회사 케이티 | 비디오 신호 처리 방법 및 장치 |
WO2019240050A1 (ja) * | 2018-06-11 | 2019-12-19 | 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 | 符号化装置、復号装置、符号化方法および復号方法 |
WO2020006304A1 (en) | 2018-06-29 | 2020-01-02 | Vid Scale, Inc. | Adaptive control point selection for affine motion model based video coding |
KR102553341B1 (ko) * | 2018-08-12 | 2023-07-06 | 엘지전자 주식회사 | 영상 신호를 처리하기 위한 방법 및 장치 |
KR20210046002A (ko) | 2018-09-07 | 2021-04-27 | 주식회사 윌러스표준기술연구소 | 다중 변환 커널을 사용하는 비디오 신호 처리 방법 및 장치 |
EP3854080A1 (en) * | 2018-09-21 | 2021-07-28 | InterDigital VC Holdings, Inc. | Harmonization of intra transform coding and wide angle intra prediction |
WO2020071736A1 (ko) * | 2018-10-01 | 2020-04-09 | 엘지전자 주식회사 | 비디오 신호의 부호화/복호화 방법 및 이를 위한 장치 |
CN113225559B (zh) * | 2018-10-12 | 2023-05-16 | Oppo广东移动通信有限公司 | 视频信号的编码方法和解码方法及其装置 |
US11546632B2 (en) * | 2018-12-19 | 2023-01-03 | Lg Electronics Inc. | Method and device for processing video signal by using intra-prediction |
US10986339B2 (en) * | 2019-02-08 | 2021-04-20 | Tencent America LLC | Method and apparatus for harmonization between transform skip mode and multiple transform selection |
KR20210114386A (ko) | 2019-02-08 | 2021-09-23 | 주식회사 윌러스표준기술연구소 | 이차 변환을 이용하는 비디오 신호 처리 방법 및 장치 |
JP7293376B2 (ja) | 2019-02-28 | 2023-06-19 | ヒューマックス・カンパニー・リミテッド | イントラ予測ベースのビデオ信号処理方法及び装置 |
CN113365057B (zh) * | 2019-03-09 | 2023-02-28 | 杭州海康威视数字技术股份有限公司 | 进行编码和解码的方法、解码端、编码端和*** |
US11616966B2 (en) * | 2019-04-03 | 2023-03-28 | Mediatek Inc. | Interaction between core transform and secondary transform |
US11172211B2 (en) * | 2019-04-04 | 2021-11-09 | Tencent America LLC | Method and apparatus for video coding |
WO2020218861A1 (ko) * | 2019-04-23 | 2020-10-29 | 주식회사 윌러스표준기술연구소 | 다중 변환 커널을 사용하는 비디오 신호 처리 방법 및 장치 |
US11032572B2 (en) | 2019-05-17 | 2021-06-08 | Qualcomm Incorporated | Low-frequency non-separable transform signaling based on zero-out patterns for video coding |
CN113950828B (zh) * | 2019-06-07 | 2024-07-05 | 北京字节跳动网络技术有限公司 | 视频比特流中的简化二次变换的有条件信令 |
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 |
KR20210158400A (ko) * | 2019-06-19 | 2021-12-30 | 엘지전자 주식회사 | 영상 코딩에서 변환 커널 세트를 나타내는 정보의 시그널링 |
US11949870B2 (en) * | 2019-06-21 | 2024-04-02 | Qualcomm Incorporated | Context modeling for low-frequency non-separable transformation signaling for video coding |
CN115967811A (zh) * | 2019-06-25 | 2023-04-14 | 三星电子株式会社 | 使用二次变换的视频信号处理方法及装置 |
JP7422858B2 (ja) | 2019-08-03 | 2024-01-26 | 北京字節跳動網絡技術有限公司 | ビデオ処理方法、装置、記憶媒体及び記憶方法 |
WO2021032045A1 (en) | 2019-08-17 | 2021-02-25 | Beijing Bytedance Network Technology Co., Ltd. | Context modeling of side information for reduced secondary transforms in video |
EP4062645A4 (en) * | 2019-11-21 | 2023-08-16 | Beijing Dajia Internet Information Technology Co., Ltd. | METHOD AND DEVICE FOR TRANSFORMATION AND COEFFICIENT SIGNALING |
US11457229B2 (en) * | 2019-12-23 | 2022-09-27 | Qualcomm Incorporated | LFNST signaling for chroma based on chroma transform skip |
WO2021128284A1 (zh) * | 2019-12-27 | 2021-07-01 | 富士通株式会社 | 二次变换的约束方法及其装置 |
WO2021137445A1 (ko) * | 2019-12-31 | 2021-07-08 | (주)휴맥스 | 비디오 신호 처리를 위한 변환 커널 결정 방법 및 이를 위한 장치 |
EP4087252A4 (en) * | 2019-12-31 | 2023-01-25 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | TRANSFORMATION METHOD, ENCODER, DECODER AND STORAGE MEDIUM |
US20230064931A1 (en) * | 2020-01-12 | 2023-03-02 | Lg Electronics Inc. | Transform-based image coding method and device therefor |
WO2021155005A1 (en) * | 2020-01-28 | 2021-08-05 | Beijing Dajia Internet Information Technology Co., Ltd. | Methods and apparatus on transform and coefficient signaling |
EP4307677A3 (en) | 2020-02-24 | 2024-04-17 | ByteDance Inc. | Interaction between subpicture and tile row signaling |
JP7479492B2 (ja) * | 2020-03-03 | 2024-05-08 | バイトダンス インコーポレイテッド | ビデオ・コーディングにおける低周波ノン・セパラブル変換シグナリング |
EP4104438A4 (en) | 2020-03-11 | 2023-08-16 | Beijing Bytedance Network Technology Co., Ltd. | ADAPTIVE LOOP FILTERING |
WO2021194199A1 (ko) * | 2020-03-24 | 2021-09-30 | 엘지전자 주식회사 | 변환에 기반한 영상 코딩 방법 및 그 장치 |
KR20220161382A (ko) * | 2020-03-26 | 2022-12-06 | 엘지전자 주식회사 | 변환에 기반한 영상 코딩 방법 및 그 장치 |
JP7446046B2 (ja) * | 2020-03-27 | 2024-03-08 | 三星電子株式会社 | 映像の復号化方法及び装置 |
GB2593778A (en) * | 2020-04-03 | 2021-10-06 | Sony Group Corp | Video data encoding and decoding |
US11785254B2 (en) * | 2020-05-29 | 2023-10-10 | Tencent America LLC | Implicit mode dependent primary transforms |
CN115699769A (zh) | 2020-05-31 | 2023-02-03 | 抖音视界有限公司 | 使用通用约束信息语法元素的约束信令 |
US11930186B2 (en) | 2020-11-11 | 2024-03-12 | Tencent America LLC | Method and apparatus for video coding |
US20240107009A1 (en) * | 2021-01-25 | 2024-03-28 | Nec Corporation | Video coding device and video coding method |
GB2603559B (en) * | 2021-07-22 | 2023-08-09 | Imagination Tech Ltd | Coding blocks of pixels |
WO2024076134A1 (ko) * | 2022-10-05 | 2024-04-11 | 세종대학교산학협력단 | 동영상 인코딩 및 디코딩 장치와 방법 |
Family Cites Families (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100525785B1 (ko) * | 2001-06-15 | 2005-11-03 | 엘지전자 주식회사 | 이미지 화소 필터링 방법 |
US8634456B2 (en) * | 2008-10-03 | 2014-01-21 | Qualcomm Incorporated | Video coding with large macroblocks |
US20110026593A1 (en) * | 2009-02-10 | 2011-02-03 | New Wei Lee | Image processing apparatus, image processing method, program and integrated circuit |
CN101577826B (zh) * | 2009-03-12 | 2014-04-23 | 北京中星微电子有限公司 | 视频编码中的运动搜索控制方法和控制装置 |
US9635368B2 (en) * | 2009-06-07 | 2017-04-25 | Lg Electronics Inc. | Method and apparatus for decoding a video signal |
KR101994216B1 (ko) * | 2009-06-07 | 2019-06-28 | 엘지전자 주식회사 | 비디오 신호의 디코딩 방법 및 장치 |
KR20110112168A (ko) * | 2010-04-05 | 2011-10-12 | 삼성전자주식회사 | 내부 비트뎁스 확장에 기반한 비디오 부호화 방법 및 그 장치, 내부 비트뎁스 확장에 기반한 비디오 복호화 방법 및 그 장치 |
AU2011241284B2 (en) * | 2010-04-13 | 2015-05-07 | Samsung Electronics Co., Ltd. | Video-encoding method and video-encoding apparatus using prediction units based on encoding units determined in accordance with a tree structure, and video-decoding method and video-decoding apparatus using prediction units based on encoding units determined in accordance with a tree structure |
KR101791242B1 (ko) * | 2010-04-16 | 2017-10-30 | 에스케이텔레콤 주식회사 | 영상 부호화/복호화 장치 및 방법 |
KR101791078B1 (ko) * | 2010-04-16 | 2017-10-30 | 에스케이텔레콤 주식회사 | 영상 부호화/복호화 장치 및 방법 |
KR101813189B1 (ko) * | 2010-04-16 | 2018-01-31 | 에스케이 텔레콤주식회사 | 영상 부호화/복호화 장치 및 방법 |
US10091529B2 (en) * | 2010-07-09 | 2018-10-02 | Samsung Electronics Co., Ltd. | Method and apparatus for entropy encoding/decoding a transform coefficient |
US8934540B2 (en) * | 2010-07-20 | 2015-01-13 | Cisco Technology, Inc. | Video compression using multiple variable length coding methods for multiple types of transform coefficient blocks |
US9706214B2 (en) * | 2010-12-24 | 2017-07-11 | Microsoft Technology Licensing, Llc | Image and video decoding implementations |
JP6051156B2 (ja) * | 2011-04-27 | 2016-12-27 | シャープ株式会社 | 画像復号装置および画像符号化装置 |
CN107835414B (zh) * | 2011-10-18 | 2020-11-06 | 株式会社Kt | 视频信号解码方法 |
RU2602834C2 (ru) * | 2011-10-19 | 2016-11-20 | Кт Корпорейшен | Способ и устройство для кодирования/декодирования видеоданных |
CN103096053B (zh) * | 2011-11-04 | 2015-10-07 | 华为技术有限公司 | 一种变换模式的编解码方法和装置 |
US9538175B2 (en) * | 2012-09-26 | 2017-01-03 | Qualcomm Incorporated | Context derivation for context-adaptive, multi-level significance coding |
AU2012232992A1 (en) * | 2012-09-28 | 2014-04-17 | Canon Kabushiki Kaisha | Method, apparatus and system for encoding and decoding the transform units of a coding unit |
US9367291B2 (en) * | 2013-03-29 | 2016-06-14 | Samsung Electronics Co., Ltd. | Apparatus and method for generating vector code |
US9432696B2 (en) * | 2014-03-17 | 2016-08-30 | Qualcomm Incorporated | Systems and methods for low complexity forward transforms using zeroed-out coefficients |
US20160044314A1 (en) * | 2014-08-08 | 2016-02-11 | Qualcomm Incorporated | System and method for reusing transform structure for multi-partition transform |
EP3211893B1 (en) * | 2014-10-24 | 2019-09-04 | LG Electronics Inc. | Method and apparatus for decoding/encoding video signal using transform derived from graph template |
CN105574842A (zh) * | 2014-11-09 | 2016-05-11 | 许亚夫 | 一种比赛边线视频检测方法 |
WO2016167538A1 (ko) * | 2015-04-12 | 2016-10-20 | 엘지전자(주) | 비디오 신호의 인코딩, 디코딩 방법 및 그 장치 |
JP6613720B2 (ja) * | 2015-08-26 | 2019-12-04 | 沖電気工業株式会社 | 画像処理装置、プログラム及び方法 |
JP6528635B2 (ja) * | 2015-10-05 | 2019-06-12 | 富士通株式会社 | 動画像符号化装置、動画像符号化方法及び動画像符号化用コンピュータプログラム |
EP3334160A1 (en) * | 2015-11-06 | 2018-06-13 | Huawei Technologies Co., Ltd. | Method and apparatus for de-quantization of transform coefficients, and decoding device |
KR20170124077A (ko) * | 2016-04-29 | 2017-11-09 | 세종대학교산학협력단 | 영상 신호 부호화/복호화 방법 및 장치 |
US10972733B2 (en) * | 2016-07-15 | 2021-04-06 | Qualcomm Incorporated | Look-up table for enhanced multiple transform |
CN115914625A (zh) * | 2016-08-01 | 2023-04-04 | 韩国电子通信研究院 | 图像编码/解码方法 |
US10440394B2 (en) * | 2016-09-08 | 2019-10-08 | Google Llc | Context adaptive scan order for entropy coding |
US10880564B2 (en) * | 2016-10-01 | 2020-12-29 | Qualcomm Incorporated | Transform selection for video coding |
US11095893B2 (en) * | 2016-10-12 | 2021-08-17 | Qualcomm Incorporated | Primary transform and secondary transform in video coding |
US11405645B2 (en) * | 2017-02-28 | 2022-08-02 | Google Llc | Transform kernel selection and entropy coding |
US10855997B2 (en) * | 2017-04-14 | 2020-12-01 | Mediatek Inc. | Secondary transform kernel size selection |
KR20240010541A (ko) * | 2017-07-04 | 2024-01-23 | 삼성전자주식회사 | 다중 코어 변환에 의한 비디오 복호화 방법 및 장치, 다중 코어 변환에 의한 비디오 부호화 방법 및 장치 |
US10841577B2 (en) * | 2018-02-08 | 2020-11-17 | Electronics And Telecommunications Research Institute | Method and apparatus for video encoding and video decoding based on neural network |
CN116847081A (zh) * | 2018-04-01 | 2023-10-03 | Lg电子株式会社 | 图像解码设备、图像编码设备和用于发送视频信号的设备 |
JP7223014B2 (ja) * | 2018-06-03 | 2023-02-15 | エルジー エレクトロニクス インコーポレイティド | 縮小された変換を用いて、ビデオ信号を処理する方法及び装置 |
-
2019
- 2019-06-03 JP JP2020541390A patent/JP7223014B2/ja active Active
- 2019-06-03 WO PCT/KR2019/006675 patent/WO2019235797A1/ko unknown
- 2019-06-03 ES ES19814714T patent/ES2949998T3/es active Active
- 2019-06-03 CN CN202211039334.0A patent/CN115379216A/zh active Pending
- 2019-06-03 KR KR1020237006374A patent/KR102659354B1/ko active IP Right Grant
- 2019-06-03 CN CN201980021153.5A patent/CN111937400B/zh active Active
- 2019-06-03 FI FIEP19814714.2T patent/FI3806476T3/fi active
- 2019-06-03 PL PL19814714.2T patent/PL3806476T3/pl unknown
- 2019-06-03 EP EP19814714.2A patent/EP3806476B1/en active Active
- 2019-06-03 KR KR1020207016734A patent/KR102504694B1/ko active IP Right Grant
- 2019-06-03 US US16/429,956 patent/US11284097B2/en active Active
- 2019-06-03 EP EP23161707.7A patent/EP4216554A1/en active Pending
- 2019-06-03 HR HRP20230521TT patent/HRP20230521T1/hr unknown
- 2019-06-03 SI SI201930603T patent/SI3806476T1/sl unknown
- 2019-06-03 HU HUE19814714A patent/HUE063012T2/hu unknown
- 2019-06-03 KR KR1020247012642A patent/KR20240056624A/ko active Application Filing
- 2019-06-03 CN CN202211038969.9A patent/CN115379215A/zh active Pending
-
2022
- 2022-02-15 US US17/671,946 patent/US11711533B2/en active Active
-
2023
- 2023-02-03 JP JP2023015037A patent/JP2023052876A/ja active Pending
- 2023-06-03 US US18/205,501 patent/US20230396788A1/en active Pending
Non-Patent Citations (4)
Title |
---|
BUDAGAVI, Madhukar et al.,IDCT pruning,Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11 5th Meeting: Geneva, CH, 16-23 March, 2011, [JCTVC-E386],JCTVC-E386 (version 4),ITU-T,2011年03月21日,JCTVC-E386_r2.doc: pp. 1-6 |
CHEN, Jianle et al.,Algorithm Description of Joint Exploration Test Model 7 (JEM 7),Joint Video Exploration Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11 7th Meeting: Torino, IT, 13-21 July 2017, [JVET-G1001-v1],JVET-G1001 (version 1),ITU-T,2017年08月19日,JVET-G1001-v1.docx: pp. 28-30 |
KOO, Moonmo et al.,Description of SDR video coding technology proposal by LG Electronics,Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11 10th Meeting: San Diego, CA, 10-20 April 2018, [JVET-J0017-v1],JVET-J0017 (version 2),ITU-T,2018年04月11日,JVET-J0017_r1.docx: pp. 6-15 |
LI, Xiang et al.,Description of SDR video coding technology proposal by Tencent,Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11 10th Meeting: San Diego, US, 10-20 Apr. 2018, [JVET-J0029-v1],JVET-J0029 (version 2),ITU-T,2018年04月06日,JVET-J0029.docx: pp. 5-6 |
Also Published As
Publication number | Publication date |
---|---|
EP3806476A1 (en) | 2021-04-14 |
JP2021511752A (ja) | 2021-05-06 |
HUE063012T2 (hu) | 2023-12-28 |
KR20240056624A (ko) | 2024-04-30 |
EP4216554A1 (en) | 2023-07-26 |
WO2019235797A1 (ko) | 2019-12-12 |
CN111937400A (zh) | 2020-11-13 |
US20230396788A1 (en) | 2023-12-07 |
FI3806476T3 (fi) | 2023-08-15 |
CN115379215A (zh) | 2022-11-22 |
SI3806476T1 (sl) | 2023-10-30 |
US11284097B2 (en) | 2022-03-22 |
US11711533B2 (en) | 2023-07-25 |
KR20230033024A (ko) | 2023-03-07 |
CN111937400B (zh) | 2022-09-13 |
US20220182651A1 (en) | 2022-06-09 |
HRP20230521T1 (hr) | 2023-08-04 |
KR102504694B1 (ko) | 2023-02-28 |
CN115379216A (zh) | 2022-11-22 |
ES2949998T3 (es) | 2023-10-04 |
JP2023052876A (ja) | 2023-04-12 |
KR102659354B1 (ko) | 2024-04-18 |
KR20200078649A (ko) | 2020-07-01 |
PL3806476T3 (pl) | 2023-09-11 |
US20190387241A1 (en) | 2019-12-19 |
EP3806476B1 (en) | 2023-05-24 |
EP3806476A4 (en) | 2022-04-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7223014B2 (ja) | 縮小された変換を用いて、ビデオ信号を処理する方法及び装置 | |
JP7301951B2 (ja) | 縮小された2次変換を用いて、ビデオ信号を処理する方法及び装置 | |
KR102599446B1 (ko) | 인트라 예측 모드에 기초하여 변환 인덱스 코딩을 수행하는 방법 및 이를 위한 장치 | |
KR102526578B1 (ko) | 이차 변환을 기반으로 비디오 신호를 처리하는 방법 및 장치 | |
KR102664785B1 (ko) | 비디오 신호를 처리하기 위한 방법 및 장치 | |
KR102509578B1 (ko) | 영상의 부호화/복호화 방법 및 이를 위한 장치 | |
KR102650865B1 (ko) | 분할된 블록에 2차 변환을 적용하여 비디오 신호를 처리하는 방법 및 장치 | |
WO2019194505A1 (ko) | 축소된 회전기반 변환을 이용하여 비디오 신호를 처리하는 방법 및 장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20200728 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20210806 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20210817 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20211108 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20220301 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20220601 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220826 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20230110 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20230203 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7223014 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |