CN114424568A - 预测方法、编码器、解码器及计算机存储介质 - Google Patents
预测方法、编码器、解码器及计算机存储介质 Download PDFInfo
- Publication number
- CN114424568A CN114424568A CN201980100519.8A CN201980100519A CN114424568A CN 114424568 A CN114424568 A CN 114424568A CN 201980100519 A CN201980100519 A CN 201980100519A CN 114424568 A CN114424568 A CN 114424568A
- Authority
- CN
- China
- Prior art keywords
- point
- color component
- value
- prediction
- model parameter
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 145
- 230000009466 transformation Effects 0.000 claims abstract description 56
- 238000004364 calculation method Methods 0.000 claims description 18
- 238000004590 computer program Methods 0.000 claims description 17
- 238000000638 solvent extraction Methods 0.000 claims description 16
- 238000004458 analytical method Methods 0.000 claims description 15
- 238000010276 construction Methods 0.000 claims description 12
- 238000013139 quantization Methods 0.000 claims description 10
- 230000001174 ascending effect Effects 0.000 claims description 9
- 230000001788 irregular Effects 0.000 claims description 7
- 230000001131 transforming effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 22
- 238000004891 communication Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000013441 quality evaluation Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000011426 transformation method Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000011478 gradient descent method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- H04N19/129—Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T9/00—Image coding
- G06T9/001—Model-based coding, e.g. wire frame
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T9/00—Image coding
- G06T9/004—Predictors, e.g. intraframe, interframe 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
- H04N19/102—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
- H04N19/124—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
- H04N19/134—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
- H04N19/136—Incoming video signal characteristics or properties
-
- 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
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
-
- 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
- H04N19/597—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
本申请实施例公开了一种预测方法、编码器、解码器及计算机存储介质,该方法应用于编码器,包括:确定待编码点所处的空间块;根据所述空间块,构造预测模型;其中,所述预测模型用于表征所述待编码点的第一颜色分量与第二颜色分量之间的预测关系;获取所述待编码点的第一颜色分量值和第二颜色分量值;利用所述预测模型以及所述第一颜色分量值,获得所述待编码点的第二颜色分量预测值;计算所述第二颜色分量值与所述第二颜色分量预测值之间的差值,将得到的差值作为所述待编码点的残差;基于所述待编码点的残差,进行细节层次LOD划分和提升变换。
Description
PCT国内申请,说明书已公开。
Claims (26)
- PCT国内申请,权利要求书已公开。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2019/109695 WO2021062772A1 (zh) | 2019-09-30 | 2019-09-30 | 预测方法、编码器、解码器及计算机存储介质 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN114424568A true CN114424568A (zh) | 2022-04-29 |
Family
ID=75336668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201980100519.8A Pending CN114424568A (zh) | 2019-09-30 | 2019-09-30 | 预测方法、编码器、解码器及计算机存储介质 |
Country Status (4)
Country | Link |
---|---|
US (1) | US11936909B2 (zh) |
EP (1) | EP4040790A4 (zh) |
CN (1) | CN114424568A (zh) |
WO (1) | WO2021062772A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024082152A1 (zh) * | 2022-10-18 | 2024-04-25 | Oppo广东移动通信有限公司 | 编解码方法及装置、编解码器、码流、设备、存储介质 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114207668A (zh) * | 2019-09-30 | 2022-03-18 | Oppo广东移动通信有限公司 | 划分方法、编码器、解码器以及计算机存储介质 |
US11956470B2 (en) * | 2020-04-07 | 2024-04-09 | Qualcomm Incorporated | Predictor index signaling for predicting transform in geometry-based point cloud compression |
CN115474035A (zh) * | 2021-06-11 | 2022-12-13 | 鹏城实验室 | 点云属性编码方法、装置、解码方法、装置及相关设备 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018191224A1 (en) * | 2017-04-11 | 2018-10-18 | Vid Scale, Inc. | 360-degree video coding using face continuities |
EP3673651A1 (en) * | 2017-08-22 | 2020-07-01 | Panasonic Intellectual Property Corporation of America | Image encoder, image decoder, image encoding method, and image decoding method |
US10861196B2 (en) * | 2017-09-14 | 2020-12-08 | Apple Inc. | Point cloud compression |
GB201717012D0 (en) * | 2017-10-17 | 2017-11-29 | Nokia Technologies Oy | An apparatus a method and a computer program for coding volumetric video |
CN108322742B (zh) | 2018-02-11 | 2019-08-16 | 北京大学深圳研究生院 | 一种基于帧内预测的点云属性压缩方法 |
CN108632621B (zh) | 2018-05-09 | 2019-07-02 | 北京大学深圳研究生院 | 一种基于层次划分的点云属性压缩方法 |
CN109257604B (zh) * | 2018-11-20 | 2020-11-27 | 山东大学 | 一种基于tmc3点云编码器的颜色属性编码方法 |
-
2019
- 2019-09-30 EP EP19947496.6A patent/EP4040790A4/en not_active Withdrawn
- 2019-09-30 WO PCT/CN2019/109695 patent/WO2021062772A1/zh unknown
- 2019-09-30 CN CN201980100519.8A patent/CN114424568A/zh active Pending
-
2022
- 2022-03-17 US US17/655,353 patent/US11936909B2/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024082152A1 (zh) * | 2022-10-18 | 2024-04-25 | Oppo广东移动通信有限公司 | 编解码方法及装置、编解码器、码流、设备、存储介质 |
Also Published As
Publication number | Publication date |
---|---|
EP4040790A1 (en) | 2022-08-10 |
US11936909B2 (en) | 2024-03-19 |
EP4040790A4 (en) | 2022-10-19 |
WO2021062772A1 (zh) | 2021-04-08 |
US20220210471A1 (en) | 2022-06-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN114424568A (zh) | 预测方法、编码器、解码器及计算机存储介质 | |
CN110996098A (zh) | 处理点云数据的方法和装置 | |
JP7386337B2 (ja) | 分割方法、符号器、復号器及びコンピュータ記憶媒体 | |
ES2718049T3 (es) | Búsqueda de forma de cuantificador de vector en pirámide | |
CN114402532A (zh) | 占位信息的预测方法、编码器、解码器、及存储介质 | |
US20230101072A1 (en) | Nearest neighbour search method, encoder, decoder and storage medium | |
US11983905B2 (en) | Methods for level partition of point cloud, and decoder | |
EP4083924A1 (en) | Nearest neighbor search method, apparatus, device, and storage medium | |
CN114009014A (zh) | 颜色分量预测方法、编码器、解码器及计算机存储介质 | |
WO2022120594A1 (zh) | 点云编解码方法、编码器、解码器及计算机存储介质 | |
CN114730474A (zh) | 点云处理方法、编码器、解码器及存储介质 | |
JP2023525207A (ja) | イントラ予測方法、装置、エンコーダ、デコーダ、及び記憶媒体 | |
CN115174922A (zh) | 划分方法、编码器、解码器及计算机存储介质 | |
CN112616058B (zh) | 视频编码或解码方法、装置、计算机设备和存储介质 | |
WO2022067782A1 (zh) | 一种点云数据的层次划分方法、编码器及存储介质 | |
CN117157973A (zh) | 编解码方法及相关设备、存储介质 | |
CN118175319A (zh) | 点云编码方法、点云解码方法及相关设备 | |
JPWO2021218509A5 (zh) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |