GB201118445D0 - Method and apparatus for processing components of an image - Google Patents
Method and apparatus for processing components of an imageInfo
- Publication number
- GB201118445D0 GB201118445D0 GB201118445A GB201118445A GB201118445D0 GB 201118445 D0 GB201118445 D0 GB 201118445D0 GB 201118445 A GB201118445 A GB 201118445A GB 201118445 A GB201118445 A GB 201118445A GB 201118445 D0 GB201118445 D0 GB 201118445D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- type
- samples
- model parameter
- model
- image
- 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.)
- Granted
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
- H04N19/50—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
- H04N19/10—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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Components (e.g. luma, chroma) of an image are processed, the image being composed of at least a first and a second, different, type of component. Samples of the second type are predictable (406) from samples of the first type (401, 402, 403) using a prediction model linking the first and second types. The link is represented in the model by at least one model parameter. The value of an intermediate model parameter (404) used to obtain the prediction model parameter, or the value of the model parameter itself, is adjusted (e.g. according to a correction parameter), and samples of the second type are predicted from filtered or non-filtered samples of the first type using the model and model parameter(s) (405) based on the adjusted intermediate model parameter value or the adjusted model parameter. Also disclosed is filtering the samples of the first type using a filter (i) having integer only coefficients and/or (ii) avoiding using left shift operations and/or (iii) avoiding using right shift operations. Samples are predicted of the second type from the filtered samples of the first type using the prediction model.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1118445.4A GB2495942B (en) | 2011-10-25 | 2011-10-25 | Method and apparatus for processing components of an image |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1118445.4A GB2495942B (en) | 2011-10-25 | 2011-10-25 | Method and apparatus for processing components of an image |
Publications (3)
Publication Number | Publication Date |
---|---|
GB201118445D0 true GB201118445D0 (en) | 2011-12-07 |
GB2495942A GB2495942A (en) | 2013-05-01 |
GB2495942B GB2495942B (en) | 2014-09-03 |
Family
ID=45373408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1118445.4A Active GB2495942B (en) | 2011-10-25 | 2011-10-25 | Method and apparatus for processing components of an image |
Country Status (1)
Country | Link |
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GB (1) | GB2495942B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2591379B (en) * | 2018-01-03 | 2023-02-15 | Beijing Bytedance Network Tech Co Ltd | Single-line cross component linear model prediction mode |
CN110839153B (en) | 2018-08-17 | 2023-04-07 | 北京字节跳动网络技术有限公司 | Method and device for processing video data |
WO2020053804A1 (en) * | 2018-09-12 | 2020-03-19 | Beijing Bytedance Network Technology Co., Ltd. | Downsampling in cross-component linear modeling |
WO2020094067A1 (en) * | 2018-11-06 | 2020-05-14 | Beijing Bytedance Network Technology Co., Ltd. | Simplified parameter derivation for intra prediction |
CN113170122B (en) | 2018-12-01 | 2023-06-27 | 北京字节跳动网络技术有限公司 | Parameter derivation for intra prediction |
SG11202105759QA (en) | 2018-12-07 | 2021-06-29 | Beijing Bytedance Network Technology Co Ltd | Context-based intra prediction |
BR112021015017B1 (en) | 2019-02-24 | 2022-07-26 | Bytedance Inc. | METHOD AND DEVICE TO ENCODE VIDEO DATA AND STORAGE MEDIA |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2795276B1 (en) * | 1999-06-15 | 2001-08-03 | Canon Kk | FLOW CONTROL OF A LOST DIGITAL DATA COMPRESSION SYSTEM |
GB2366679A (en) * | 2000-09-05 | 2002-03-13 | Sony Uk Ltd | Processing data having multiple components |
KR101266168B1 (en) * | 2006-08-16 | 2013-05-21 | 삼성전자주식회사 | Method and apparatus for encoding, decoding video |
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2011
- 2011-10-25 GB GB1118445.4A patent/GB2495942B/en active Active
Also Published As
Publication number | Publication date |
---|---|
GB2495942B (en) | 2014-09-03 |
GB2495942A (en) | 2013-05-01 |
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