WO2003049452A2 - Verfahren zur gerichteten prädiktion eines bildblockes - Google Patents
Verfahren zur gerichteten prädiktion eines bildblockes Download PDFInfo
- Publication number
- WO2003049452A2 WO2003049452A2 PCT/DE2002/003390 DE0203390W WO03049452A2 WO 2003049452 A2 WO2003049452 A2 WO 2003049452A2 DE 0203390 W DE0203390 W DE 0203390W WO 03049452 A2 WO03049452 A2 WO 03049452A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- prediction
- block
- pixels
- image block
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/41—Bandwidth or redundancy reduction
- H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
- H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
- H04N1/417—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information using predictive or differential encoding
-
- 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
- H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
- H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
-
- 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
- H04N19/117—Filters, e.g. for pre-processing or post-processing
-
- 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
- H04N19/60—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
-
- 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
- H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
- H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop
Definitions
- the invention is based on a method for the directed prediction of an image block consisting of pixels, in particular for the intra-prediction of image blocks with a size of more than 4 x pixels.
- Intra-prediction means that only information of a current picture that has already been transmitted is used to generate a prediction signal (e.g. the first picture of a video sequence is always coded "intra").
- a prediction signal e.g. the first picture of a video sequence is always coded "intra"
- [1] has six modes available, which differ in the direction from which the prediction is made. The edge pixels of already predicted (coded) neighboring image blocks are used for the prediction.
- edge pixels of at least one already predicted neighboring image block are also used to predict a current image block.
- the pixels used for the prediction are also dependent on the
- Prediction direction pre-filtered along a block edge of the image block currently to be predicted. This pre-filtering leads to improved prediction properties, especially for blocks with a large edge length, i.e. an edge length of more than four pixels.
- the invention is based on the knowledge that if a directional prediction for block sizes with more than 4 pixels, e.g. 4 x 8, 8 x 4, 8 x 8, 16 x 8, ..., 16 x 16, very concise structures are created in the predicted image block, which lead to strong artifacts in the reconstructed image.
- these artifacts are prevented by smoothing the prediction signal, which leads to a subjective and objective improvement in the coding method for the transmission of the picture blocks predicted in this way.
- the pixels used in prediction of a neighboring image block are combined to form a prediction vector, and low-pass filtering is carried out along the direction of the prediction vector. This measure simplifies the processing effort compared to a possible individual filtering.
- the measures of claim 4 also advantageously contribute to the suppression of artifacts.
- Block edge treatment on In particular, the continuation of the prediction vector with its boundary values simplifies the processing and storage effort, which leads to an increase in coding efficiency.
- FIG. 1 shows an image block to be predicted with its
- Figure 2 shows an image block to be currently predicted with its
- FIG. 3 the prediction directions of the different ones
- FIG. 4 shows an image block of size 4 ⁇ 4 pixels with predicted pixels using already predicted pixels of a neighboring block
- FIG. 5 shows an image block of size 8 ⁇ 8 pixels with unfiltered prediction
- FIG. 6 shows the image block from FIG. 5, but with pre-filtering according to the invention.
- the intra-prediction according to [1] is carried out on 4 x 4-pixel blocks or on 16 x 16-pixel blocks. There are six modes available for 4 x 4 prediction, which differ in the direction from which the prediction is made.
- the edge pixels (edge picture elements) of already encoded neighboring picture blocks are used for the prediction. Possible neighboring blocks A 'and B' to the image block C 'currently to be predicted are shown in FIG. 1.
- FIG. 1 Possible neighboring blocks A 'and B' to the image block C 'currently to be predicted are shown in FIG. 1.
- FIG. 2 shows the current image block C 'with its pixels a, b, c, ..., p with the edge pixels of the neighboring image blocks, namely A, B, C, D of the image block A' or E, F, G which adjoins upwards , H for the neighboring picture block B 'adjoining to the left and I for the neighboring picture block adjoining the upper left corner (dashed in FIG. 1).
- mean values from positions A to H are used as a prediction for all pixels of the image block C, five modes with different prediction directions are available. In addition to horizontal and vertical prediction, three oblique prediction directions are also possible.
- Prediction directions are shown in FIG. 3.
- An example of the prediction with mode 1 is given in FIG. In this mode, only pixels A to D are used for prediction.
- mode 1 the prediction is as follows:
- the methods presented for the 4 x 4 prediction can be extended directly to other block sizes. The predictions are continued accordingly.
- the description is based on the directional prediction modes used in TML [1] for the intra-coding of 4 x 4 image blocks.
- Image blocks of the sizes 4 x 8, 8 x 4, 8 x 8, 8 x 16, 16 x 8 and 16 x 16 are considered.
- the filtering is on the edges with length> 4 pixels, ie for Edges of 8 or 16 pixels in length are used.
- the method can also be used for other block sizes and prediction directions.
- the pixels of the current image block are M lines and N columns
- the pixels of the neighboring image blocks used for the prediction are located at the positions P (-l, j) and P (i, -1). They are summarized below in the prediction vector V (n) of length N f .
- N f 4:
- a filtered version V f (n) is used to predict an image block, not V (n).
- a (low-pass) filter of suitable length L is used for filtering, for example:
- the pre-filtering takes place depending on the direction of the prediction. In the presented mode 1 along the upper block edge of the image block C currently to be predicted. The pre-filtering is carried out along the direction of the prediction vector V (n). The low-pass filtering smoothes the prediction signal. There are several options for edge treatment.
- int (x) means "rounding by truncation".
- FIG. 5 shows the effect of the prefiltering as an example for an 8 x 8 image block in a mode 1 prediction.
- FIG. 5 shows the unfiltered prediction
- FIG. 6 shows the predicted image block in pre-filtering with the filter of length given above for the edge length of 8 pixels
- V f (0) (7 * V (0) + 18 * V (0) + 7 * V (l)) / 32
- V f (l) (7 * V (0) + 18 * V (2) + 7 * V (3)) / 32
- V f (2) (7 * V (1) + 18 * V (3) + 7 * V (4)) / 32
- V f (7) (7 * V (6) + 18 * V (7) + 7 * V (7)) / 32
- Image blocks in which all AC (alternating component) coefficients have been quatized to zero can be determined directly from the edge pixels of the neighboring image blocks if the prediction mode and the filter used are known.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Image Processing (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/479,678 US7379499B2 (en) | 2001-11-30 | 2002-09-12 | Method for conducting a directed prediction of an image block |
| KR1020047008005A KR100964483B1 (ko) | 2001-11-30 | 2002-09-12 | 이미지 블록의 지향성 예측 방법 |
| DE50206504T DE50206504D1 (de) | 2001-11-30 | 2002-09-12 | Verfahren zur gerichteten prädiktion eines bildblockes |
| JP2003550511A JP4268875B2 (ja) | 2001-11-30 | 2002-09-12 | 画像ブロックの指向性予測方法 |
| EP02774338A EP1457055B1 (de) | 2001-11-30 | 2002-09-12 | Verfahren zur gerichteten prädiktion eines bildblockes |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10158658A DE10158658A1 (de) | 2001-11-30 | 2001-11-30 | Verfahren zur gerichteten Prädiktion eines Bildblockes |
| DE10158658.2 | 2001-11-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2003049452A2 true WO2003049452A2 (de) | 2003-06-12 |
| WO2003049452A3 WO2003049452A3 (de) | 2003-10-09 |
Family
ID=7707432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2002/003390 Ceased WO2003049452A2 (de) | 2001-11-30 | 2002-09-12 | Verfahren zur gerichteten prädiktion eines bildblockes |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US7379499B2 (de) |
| EP (1) | EP1457055B1 (de) |
| JP (1) | JP4268875B2 (de) |
| KR (1) | KR100964483B1 (de) |
| CN (1) | CN1258926C (de) |
| AT (1) | ATE324012T1 (de) |
| DE (2) | DE10158658A1 (de) |
| DK (1) | DK1457055T3 (de) |
| ES (1) | ES2262847T3 (de) |
| WO (1) | WO2003049452A2 (de) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1613091A1 (de) * | 2004-07-02 | 2006-01-04 | Mitsubishi Electric Information Technology Centre Europe B.V. | Intra-Bildprädiktion für zeitlich Hochpass gefilterte Bilder in Wavelet-Videokodierung |
| WO2008130367A1 (en) | 2007-04-19 | 2008-10-30 | Thomson Licensing | Adaptive reference picture data generation for intra prediction |
| EP2081386A1 (de) * | 2008-01-18 | 2009-07-22 | Panasonic Corporation | Hochpräzise Randvorhersage zur Intrakodierung |
| EP2288163A4 (de) * | 2008-05-07 | 2011-08-03 | Lg Electronics Inc | Verfahren und vorrichtung zur dekodierung eines videosignals |
| EP2953354A1 (de) * | 2008-05-07 | 2015-12-09 | LG Electronics, Inc. | Verfahren und vorrichtung zur decodierung eines videosignals |
| US10469844B2 (en) | 2010-12-08 | 2019-11-05 | Lg Electronics Inc. | Intra prediction in image processing |
Families Citing this family (45)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10158658A1 (de) * | 2001-11-30 | 2003-06-12 | Bosch Gmbh Robert | Verfahren zur gerichteten Prädiktion eines Bildblockes |
| JP4763422B2 (ja) * | 2004-12-03 | 2011-08-31 | パナソニック株式会社 | イントラ予測装置 |
| KR100678911B1 (ko) | 2005-07-21 | 2007-02-05 | 삼성전자주식회사 | 방향적 인트라 예측의 적용을 확장하여 비디오 신호를인코딩하고 디코딩하는 방법 및 장치 |
| FR2889382A1 (fr) * | 2005-07-29 | 2007-02-02 | Canon Res Ct France Soc Par Ac | Procede et dispositif de filtrage d'un signal numerique multidimensionnel et procedes et dispositifs de codage et decodage associes |
| PL3306923T3 (pl) | 2005-11-08 | 2020-04-30 | Sun Patent Trust | Sposób kodowania ruchomych obrazów, sposób dekodowania ruchomych obrazów oraz urządzenia służące do tego celu |
| KR100745765B1 (ko) * | 2006-04-13 | 2007-08-02 | 삼성전자주식회사 | 화상 데이터의 공간상 예측 장치 및 방법과 그를 이용한부호화 장치 및 방법, 화상 데이터의 공간상 예측 보상장치 및 방법과 그를 이용한 복호화 장치 및 방법 |
| JP4571955B2 (ja) * | 2007-02-07 | 2010-10-27 | 日本電信電話株式会社 | 適応デブロッキング処理方法,装置および適応デブロッキング処理プログラム並びにコンピュータ読み取り可能な記録媒体 |
| EP3410706B1 (de) * | 2007-06-29 | 2021-12-01 | Velos Media International Limited | Bildcodierungsvorrichtung und bilddecodierungsvorrichtung |
| TWI386068B (zh) * | 2008-10-22 | 2013-02-11 | Nippon Telegraph & Telephone | 解塊處理方法、解塊處理裝置、解塊處理程式及記錄該程式之可由電腦讀取之記錄媒體 |
| JP2012054618A (ja) * | 2008-11-26 | 2012-03-15 | Hitachi Ltd | 動画像符号化装置及び符号化方法、動画像復号化装置及び復号化方法 |
| WO2010091504A1 (en) * | 2009-02-13 | 2010-08-19 | Research In Motion Limited | In-loop deblocking for intra-coded images or frames |
| AU2016200566B2 (en) * | 2009-07-01 | 2017-02-16 | Sony Group Corporation | Image processing device and method |
| JP5429582B2 (ja) * | 2009-07-01 | 2014-02-26 | ソニー株式会社 | 画像処理装置および方法 |
| AU2015203503B2 (en) * | 2009-07-01 | 2016-01-07 | Sony Group Corporation | Image processing device and method |
| JP5597968B2 (ja) * | 2009-07-01 | 2014-10-01 | ソニー株式会社 | 画像処理装置および方法、プログラム、並びに記録媒体 |
| KR101510108B1 (ko) * | 2009-08-17 | 2015-04-10 | 삼성전자주식회사 | 영상의 부호화 방법 및 장치, 그 복호화 방법 및 장치 |
| CN102550026B (zh) | 2009-10-05 | 2016-08-03 | 汤姆森特许公司 | 视频编码和解码中色度分量的预测像素的自适应滤波的方法和装置 |
| JP2011151655A (ja) * | 2010-01-22 | 2011-08-04 | Mitsubishi Electric Corp | 動画像符号化装置、動画像符号化方法及び動画像符号化プログラム |
| KR20110113561A (ko) * | 2010-04-09 | 2011-10-17 | 한국전자통신연구원 | 적응적인 필터를 이용한 인트라 예측 부호화/복호화 방법 및 그 장치 |
| US8743957B2 (en) | 2010-04-12 | 2014-06-03 | Sony Corporation | Context adaptive directional intra prediction |
| EP2559239A2 (de) | 2010-04-13 | 2013-02-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung zur intraprädiktion eines blocks, vorrichtung zur rekonstruktion eines bildblocks, vorrichtung zur rekonstruktion eines bildblocks mittels intraprädiktion |
| KR20110123651A (ko) | 2010-05-07 | 2011-11-15 | 한국전자통신연구원 | 생략 부호화를 이용한 영상 부호화 및 복호화 장치 및 그 방법 |
| KR20120012385A (ko) * | 2010-07-31 | 2012-02-09 | 오수미 | 인트라 예측 부호화 장치 |
| KR101373814B1 (ko) * | 2010-07-31 | 2014-03-18 | 엠앤케이홀딩스 주식회사 | 예측 블록 생성 장치 |
| WO2012042720A1 (ja) * | 2010-09-30 | 2012-04-05 | 三菱電機株式会社 | 動画像符号化装置、動画像復号装置、動画像符号化方法及び動画像復号方法 |
| US9008175B2 (en) * | 2010-10-01 | 2015-04-14 | Qualcomm Incorporated | Intra smoothing filter for video coding |
| WO2012077719A1 (ja) * | 2010-12-09 | 2012-06-14 | シャープ株式会社 | 画像復号装置、および画像符号化装置 |
| WO2012134046A2 (ko) | 2011-04-01 | 2012-10-04 | 주식회사 아이벡스피티홀딩스 | 동영상의 부호화 방법 |
| CN107888929B (zh) * | 2011-04-12 | 2022-02-01 | 韩国电子通信研究院 | 视频编码解码方法、设备以及计算机可读介质 |
| PT3471412T (pt) | 2011-04-25 | 2021-01-27 | Lg Electronics Inc | Processo de intra-predição para descodificação de vídeo e codificação de vídeo |
| HUE063723T2 (hu) | 2011-10-28 | 2024-01-28 | Samsung Electronics Co Ltd | Eljárás és berendezés video intra predikciójára |
| JP5871628B2 (ja) * | 2011-11-07 | 2016-03-01 | キヤノン株式会社 | 画像符号化装置、画像符号化方法及びプログラム、画像復号装置、画像復号方法及びプログラム |
| JP2013102297A (ja) | 2011-11-07 | 2013-05-23 | Canon Inc | 画像符号化方法、画像符号化装置及びプログラム、画像復号方法、画像復号装置及びプログラム |
| KR101530758B1 (ko) * | 2012-07-04 | 2015-07-20 | 한양대학교 산학협력단 | 적응적 필터링을 이용하는 인트라 예측 방법 및 장치 |
| CN105684409B (zh) | 2013-10-25 | 2019-08-13 | 微软技术许可有限责任公司 | 在视频和图像编码和解码中使用散列值来表示各块 |
| CN105684441B (zh) | 2013-10-25 | 2018-09-21 | 微软技术许可有限责任公司 | 视频和图像编码中的基于散列的块匹配 |
| US10368092B2 (en) | 2014-03-04 | 2019-07-30 | Microsoft Technology Licensing, Llc | Encoder-side decisions for block flipping and skip mode in intra block copy prediction |
| KR102185245B1 (ko) | 2014-03-04 | 2020-12-01 | 마이크로소프트 테크놀로지 라이센싱, 엘엘씨 | 해시 기반 블록 매칭을 위한 해시 테이블 구성 및 이용가능성 검사 |
| CN105706450B (zh) | 2014-06-23 | 2019-07-16 | 微软技术许可有限责任公司 | 根据基于散列的块匹配的结果的编码器决定 |
| JP6462119B2 (ja) | 2014-09-30 | 2019-01-30 | マイクロソフト テクノロジー ライセンシング,エルエルシー | コンピューティングデバイス |
| US10390039B2 (en) | 2016-08-31 | 2019-08-20 | Microsoft Technology Licensing, Llc | Motion estimation for screen remoting scenarios |
| US11095877B2 (en) | 2016-11-30 | 2021-08-17 | Microsoft Technology Licensing, Llc | Local hash-based motion estimation for screen remoting scenarios |
| EP3554071A1 (de) | 2018-04-12 | 2019-10-16 | InterDigital VC Holdings, Inc. | Verfahren und vorrichtung zur intraprädiktion unter verwendung einer zusammengesetzten referenzanordnung |
| US11202085B1 (en) | 2020-06-12 | 2021-12-14 | Microsoft Technology Licensing, Llc | Low-cost hash table construction and hash-based block matching for variable-size blocks |
| CN114494294B (zh) * | 2022-01-25 | 2022-10-14 | 北京市测绘设计研究院 | 地表覆盖数据处理方法及装置、电子设备和存储介质 |
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| FI106071B (fi) * | 1997-03-13 | 2000-11-15 | Nokia Mobile Phones Ltd | Mukautuva suodatin |
| US6370192B1 (en) * | 1997-11-20 | 2002-04-09 | Hitachi America, Ltd. | Methods and apparatus for decoding different portions of a video image at different resolutions |
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| DE10158658A1 (de) * | 2001-11-30 | 2003-06-12 | Bosch Gmbh Robert | Verfahren zur gerichteten Prädiktion eines Bildblockes |
-
2001
- 2001-11-30 DE DE10158658A patent/DE10158658A1/de not_active Withdrawn
-
2002
- 2002-09-12 US US10/479,678 patent/US7379499B2/en not_active Expired - Lifetime
- 2002-09-12 ES ES02774338T patent/ES2262847T3/es not_active Expired - Lifetime
- 2002-09-12 EP EP02774338A patent/EP1457055B1/de not_active Expired - Lifetime
- 2002-09-12 WO PCT/DE2002/003390 patent/WO2003049452A2/de not_active Ceased
- 2002-09-12 DK DK02774338T patent/DK1457055T3/da active
- 2002-09-12 AT AT02774338T patent/ATE324012T1/de active
- 2002-09-12 DE DE50206504T patent/DE50206504D1/de not_active Expired - Lifetime
- 2002-09-12 JP JP2003550511A patent/JP4268875B2/ja not_active Expired - Lifetime
- 2002-09-12 KR KR1020047008005A patent/KR100964483B1/ko not_active Expired - Lifetime
- 2002-09-12 CN CNB028238249A patent/CN1258926C/zh not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1613091A1 (de) * | 2004-07-02 | 2006-01-04 | Mitsubishi Electric Information Technology Centre Europe B.V. | Intra-Bildprädiktion für zeitlich Hochpass gefilterte Bilder in Wavelet-Videokodierung |
| WO2008130367A1 (en) | 2007-04-19 | 2008-10-30 | Thomson Licensing | Adaptive reference picture data generation for intra prediction |
| US8971652B2 (en) | 2008-01-18 | 2015-03-03 | Panasonic Intellectual Property Corporation Of America | Image coding method and image decoding method for coding and decoding image data on a block-by-block basis |
| EP2081386A1 (de) * | 2008-01-18 | 2009-07-22 | Panasonic Corporation | Hochpräzise Randvorhersage zur Intrakodierung |
| EP2230851A4 (de) * | 2008-01-18 | 2011-01-19 | Panasonic Corp | Verfahren zur bildkodierung und bilddekodierung |
| US8442334B2 (en) | 2008-01-18 | 2013-05-14 | Panasonic Corporation | Image coding method and image decoding method based on edge direction |
| EP2958323A1 (de) * | 2008-05-07 | 2015-12-23 | LG Electronics, Inc. | Verfahren und vorrichtung zur decodierung eines videosignals |
| US9756358B2 (en) | 2008-05-07 | 2017-09-05 | Lg Electronics Inc. | Method and apparatus for decoding video signal |
| EP2953354A1 (de) * | 2008-05-07 | 2015-12-09 | LG Electronics, Inc. | Verfahren und vorrichtung zur decodierung eines videosignals |
| EP2953353A1 (de) * | 2008-05-07 | 2015-12-09 | LG Electronics, Inc. | Verfahren und vorrichtung zur decodierung eines videosignals |
| EP2288163A4 (de) * | 2008-05-07 | 2011-08-03 | Lg Electronics Inc | Verfahren und vorrichtung zur dekodierung eines videosignals |
| EP2958324A1 (de) * | 2008-05-07 | 2015-12-23 | LG Electronics, Inc. | Verfahren und vorrichtung zur decodierung eines videosignals |
| US9277244B2 (en) | 2008-05-07 | 2016-03-01 | Lg Electronics Inc. | Decoding a video signal using intra-prediction mode information |
| EP2924994A1 (de) * | 2008-05-07 | 2015-09-30 | LG Electronics, Inc. | Verfahren und Vorrichtung zur Dekodierung eines Videosignals |
| US10306263B2 (en) | 2008-05-07 | 2019-05-28 | Lg Electronics Inc. | Method and apparatus for decoding video signal |
| US10880575B2 (en) | 2008-05-07 | 2020-12-29 | Lg Electronics Inc. | Method and apparatus for decoding video signal |
| US10555003B2 (en) | 2008-05-07 | 2020-02-04 | Lg Electronics Inc. | Method and apparatus for decoding video signal |
| US10785487B2 (en) | 2010-12-08 | 2020-09-22 | Lg Electronics Inc. | Intra prediction in image processing |
| US10812808B2 (en) | 2010-12-08 | 2020-10-20 | Lg Electronics Inc. | Intra prediction method and encoding apparatus and decoding apparatus using same |
| US10469844B2 (en) | 2010-12-08 | 2019-11-05 | Lg Electronics Inc. | Intra prediction in image processing |
| US11102491B2 (en) | 2010-12-08 | 2021-08-24 | Lg Electronics Inc. | Intra prediction in image processing |
| US11677961B2 (en) | 2010-12-08 | 2023-06-13 | Lg Electronics Inc. | Intra prediction method and encoding apparatus and decoding apparatus using same |
Also Published As
| Publication number | Publication date |
|---|---|
| DK1457055T3 (da) | 2006-08-07 |
| KR20040062651A (ko) | 2004-07-07 |
| CN1596546A (zh) | 2005-03-16 |
| ES2262847T3 (es) | 2006-12-01 |
| US20040136458A1 (en) | 2004-07-15 |
| WO2003049452A3 (de) | 2003-10-09 |
| EP1457055A2 (de) | 2004-09-15 |
| JP2005512419A (ja) | 2005-04-28 |
| DE50206504D1 (de) | 2006-05-24 |
| DE10158658A1 (de) | 2003-06-12 |
| US7379499B2 (en) | 2008-05-27 |
| EP1457055B1 (de) | 2006-04-19 |
| CN1258926C (zh) | 2006-06-07 |
| ATE324012T1 (de) | 2006-05-15 |
| KR100964483B1 (ko) | 2010-06-21 |
| JP4268875B2 (ja) | 2009-05-27 |
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