BRPI0924155A2 - métodos e aparelho para transformar a seleção em codificação e decodificação de video - Google Patents
métodos e aparelho para transformar a seleção em codificação e decodificação de videoInfo
- Publication number
- BRPI0924155A2 BRPI0924155A2 BRPI0924155A BRPI0924155A BRPI0924155A2 BR PI0924155 A2 BRPI0924155 A2 BR PI0924155A2 BR PI0924155 A BRPI0924155 A BR PI0924155A BR PI0924155 A BRPI0924155 A BR PI0924155A BR PI0924155 A2 BRPI0924155 A2 BR PI0924155A2
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- BR
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- Prior art keywords
- decoding
- methods
- video encoding
- turning selection
- turning
- Prior art date
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Classifications
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
- H04N19/198—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters including smoothing of a sequence of encoding parameters, e.g. by averaging, by choice of the maximum, minimum or median value
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- H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
- H04N19/96—Tree coding, e.g. quad-tree coding
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computing Systems (AREA)
- Theoretical Computer Science (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14770509P | 2009-01-27 | 2009-01-27 | |
US61/147,705 | 2009-01-27 | ||
US20778309P | 2009-02-17 | 2009-02-17 | |
US61/207,783 | 2009-02-17 | ||
PCT/US2009/005731 WO2010087809A1 (en) | 2009-01-27 | 2009-10-21 | Methods and apparatus for transform selection in video encoding and decoding |
Publications (2)
Publication Number | Publication Date |
---|---|
BRPI0924155A2 true BRPI0924155A2 (pt) | 2016-10-04 |
BRPI0924155B1 BRPI0924155B1 (pt) | 2021-09-14 |
Family
ID=42395863
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0924044-6A BRPI0924044B1 (pt) | 2009-01-27 | 2009-10-21 | Métodos e aparelhos para seleções de transformada em codificação e decodificação de vídeo |
BRPI0924155-8A BRPI0924155B1 (pt) | 2009-01-27 | 2009-10-21 | Métodos e aparelho para transformar a seleção em codificação e decodificação de video |
BRPI0924167A BRPI0924167A2 (pt) | 2009-01-27 | 2009-10-21 | métodos e aparelho para transformar a seleção em codificação e decodificação de vídeo |
BR122015015910-5A BR122015015910B1 (pt) | 2009-01-27 | 2009-10-21 | Métodos e aparelhos para seleções de transformada em codificação e decodificação de vídeo |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0924044-6A BRPI0924044B1 (pt) | 2009-01-27 | 2009-10-21 | Métodos e aparelhos para seleções de transformada em codificação e decodificação de vídeo |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0924167A BRPI0924167A2 (pt) | 2009-01-27 | 2009-10-21 | métodos e aparelho para transformar a seleção em codificação e decodificação de vídeo |
BR122015015910-5A BR122015015910B1 (pt) | 2009-01-27 | 2009-10-21 | Métodos e aparelhos para seleções de transformada em codificação e decodificação de vídeo |
Country Status (8)
Country | Link |
---|---|
US (6) | US9161031B2 (pt) |
EP (5) | EP2382777A4 (pt) |
JP (11) | JP2012516625A (pt) |
KR (14) | KR20110106403A (pt) |
CN (4) | CN102308578B (pt) |
BR (4) | BRPI0924044B1 (pt) |
HK (1) | HK1222274A1 (pt) |
WO (3) | WO2010087807A1 (pt) |
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KR101527085B1 (ko) * | 2009-06-30 | 2015-06-10 | 한국전자통신연구원 | 인트라 부호화/복호화 방법 및 장치 |
EP2457377A1 (en) * | 2009-07-23 | 2012-05-30 | Thomson Licensing | Methods and apparatus for adaptive transform selection for video encoding and decoding |
JP5908848B2 (ja) * | 2010-03-10 | 2016-04-26 | トムソン ライセンシングThomson Licensing | 変換選択を有するビデオ符号化および復号のための制約付きの変換を行う方法および装置 |
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WO2012008925A1 (en) * | 2010-07-15 | 2012-01-19 | Agency For Science, Technology And Research | Method, apparatus and computer program product for encoding video data |
JP2012023632A (ja) * | 2010-07-15 | 2012-02-02 | Sony Corp | 符号化装置および符号化方法、並びに、復号装置および復号方法 |
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US20120163456A1 (en) * | 2010-12-22 | 2012-06-28 | Qualcomm Incorporated | Using a most probable scanning order to efficiently code scanning order information for a video block in video coding |
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JP5739714B2 (ja) * | 2011-04-04 | 2015-06-24 | 日本放送協会 | 符号化装置、復号装置及びプログラム |
US9167253B2 (en) | 2011-06-28 | 2015-10-20 | Qualcomm Incorporated | Derivation of the position in scan order of the last significant transform coefficient in video coding |
US8929455B2 (en) * | 2011-07-01 | 2015-01-06 | Mitsubishi Electric Research Laboratories, Inc. | Method for selecting transform types from mapping table for prediction modes |
KR101550726B1 (ko) | 2011-10-17 | 2015-09-07 | 주식회사 케이티 | 영상 부호화/복호화 방법 및 그 장치 |
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FR2982446A1 (fr) | 2011-11-07 | 2013-05-10 | France Telecom | Procede de codage et decodage d'images, dispositif de codage et decodage et programmes d'ordinateur correspondants |
FR2982447A1 (fr) | 2011-11-07 | 2013-05-10 | France Telecom | Procede de codage et decodage d'images, dispositif de codage et decodage et programmes d'ordinateur correspondants |
FR2982983A1 (fr) * | 2011-11-22 | 2013-05-24 | Thomson Licensing | Procede de codage et de reconstruction d'un bloc de pixels et dispositifs correspondants |
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KR101418096B1 (ko) * | 2012-01-20 | 2014-07-16 | 에스케이 텔레콤주식회사 | 가중치예측을 이용한 영상 부호화/복호화 방법 및 장치 |
EP3399753B1 (en) * | 2012-01-20 | 2019-12-11 | Velos Media International Limited | Multiple sign bit hiding within a transform unit |
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US10333547B2 (en) | 2012-08-13 | 2019-06-25 | Gurologic Microsystems Oy | Encoder and method for encoding input data using a plurality of different transformations or combinations of transformations |
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US10412414B2 (en) | 2012-08-13 | 2019-09-10 | Gurulogic Microsystems Oy | Decoder and method for decoding encoded input data containing a plurality of blocks or packets |
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GB2516425B (en) * | 2013-07-17 | 2015-12-30 | Gurulogic Microsystems Oy | Encoder and decoder, and method of operation |
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FR3024933A1 (fr) * | 2014-08-12 | 2016-02-19 | Orange | Procede de codage et de decodage d'images, dispositif de codage et de decodage d'images et programmes d'ordinateur correspondants |
US9762912B2 (en) * | 2015-01-16 | 2017-09-12 | Microsoft Technology Licensing, Llc | Gradual updating using transform coefficients for encoding and decoding |
FR3038196A1 (fr) * | 2015-06-29 | 2016-12-30 | B<>Com | Procede de codage d'une image numerique, procede de decodage, dispositifs et programmes d'ordinateurs associes |
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EP3166313A1 (en) | 2015-11-09 | 2017-05-10 | Thomson Licensing | Encoding and decoding method and corresponding devices |
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AU2015417837B2 (en) * | 2015-12-23 | 2019-07-18 | Huawei Technologies Co., Ltd. | Method and apparatus for transform coding with block-level transform selection and implicit signaling within hierarchical partitioning |
KR20180107153A (ko) * | 2016-02-16 | 2018-10-01 | 삼성전자주식회사 | 영상 부호화 방법 및 장치와 영상 복호화 방법 및 장치 |
KR102531124B1 (ko) * | 2016-07-14 | 2023-05-10 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. | 변환 기반 잔차 코딩을 이용한 예측 화상 코딩 |
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