MX366389B - Codificacion y decodificacion de datos. - Google Patents
Codificacion y decodificacion de datos.Info
- Publication number
- MX366389B MX366389B MX2016003402A MX2016003402A MX366389B MX 366389 B MX366389 B MX 366389B MX 2016003402 A MX2016003402 A MX 2016003402A MX 2016003402 A MX2016003402 A MX 2016003402A MX 366389 B MX366389 B MX 366389B
- Authority
- MX
- Mexico
- Prior art keywords
- data values
- array
- inverse frequency
- transform
- apply
- Prior art date
Links
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
- H04N19/10—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
- H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
-
- 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
- H04N19/10—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
-
- 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
- H04N19/10—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
- H04N19/102—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]
-
- 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
- H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
-
- 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
- H04N19/18—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
-
- 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
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)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Un aparato de decodificación de datos de video operable para decodificar una arreglo de valores de datos de video codificados comprende un descuantificador configurado para descuantificar el arreglo de valores de datos de video codificados mediante la aplicación de un parámetro descuantificación a cada valor de datos para generar valores de datos descuantificados correspondientes; un transformador de frecuencia inverso configurado para aplicar una transformación de frecuencia inversa de los valores de datos descuantificados; y un detector configurado para detectar si un modo de salto de transformación es aplicable al arreglo de valores de datos de video codificados; en el cual: si el detector detecta que el modo de salto de transformación no es aplicable al arreglo de valores de datos de video codificados, el detector controla el descuantificador para aplicar parámetros de descuantificación que pueden variar entre los valores de datos en el arreglo de valores de datos codificados de acuerdo con el posición de cada valor de los datos dentro del arreglo, y controla el transformador de frecuencia inversa para aplicar una transformación de frecuencia inversa de los valores de datos descuantificados; y si el detector detecta que el modo de salto de transformación es aplicable al arreglo de valores de datos de video codificados, el detector controla el descuantificador para aplicar parámetros de descuantificación que, para cada arreglo de valores de datos codificados, son independientes de la posición de cada valor de datos dentro del arreglo, y controla el transformador de frecuencia inversa para que no aplique una transformación de frecuencia inversa a los valores de los datos descuantificados.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1317041.0A GB2518823A (en) | 2013-09-25 | 2013-09-25 | Data encoding and decoding |
| PCT/GB2014/052902 WO2015044660A1 (en) | 2013-09-25 | 2014-09-24 | Data encoding and decoding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MX2016003402A MX2016003402A (es) | 2016-06-30 |
| MX366389B true MX366389B (es) | 2019-07-08 |
Family
ID=49553411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2016003402A MX366389B (es) | 2013-09-25 | 2014-09-24 | Codificacion y decodificacion de datos. |
Country Status (11)
| Country | Link |
|---|---|
| US (2) | US10575017B2 (es) |
| EP (1) | EP3036904B1 (es) |
| JP (1) | JP6548635B2 (es) |
| CN (2) | CN105580367B (es) |
| AU (1) | AU2014326421B2 (es) |
| CA (1) | CA2923556C (es) |
| GB (1) | GB2518823A (es) |
| MX (1) | MX366389B (es) |
| RU (2) | RU2760234C2 (es) |
| TW (1) | TWI650012B (es) |
| WO (1) | WO2015044660A1 (es) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10091506B2 (en) * | 2015-06-11 | 2018-10-02 | Sony Corporation | Data-charge phase data compression architecture |
| US10027968B2 (en) * | 2015-06-12 | 2018-07-17 | Sony Corporation | Data-charge phase data compression tool |
| US10123044B2 (en) * | 2015-07-16 | 2018-11-06 | Mediatek Inc. | Partial decoding circuit of video encoder/decoder for dealing with inverse second transform and partial encoding circuit of video encoder for dealing with second transform |
| US10224042B2 (en) * | 2016-10-31 | 2019-03-05 | Qualcomm Incorporated | Encoding of multiple audio signals |
| CN116668687A (zh) * | 2016-11-25 | 2023-08-29 | 株式会社Kt | 用于对视频进行编码和解码的方法 |
| KR20180089290A (ko) | 2017-01-31 | 2018-08-08 | 세종대학교산학협력단 | 영상의 부호화/복호화 방법 및 장치 |
| GB2570710B (en) * | 2018-02-05 | 2022-10-12 | Sony Corp | Data encoding and decoding |
| CN118945349A (zh) * | 2019-06-14 | 2024-11-12 | 弗劳恩霍夫应用研究促进协会 | 具有改进的基于变换的缩放的编码器、解码器、方法和计算机程序 |
| US20220256151A1 (en) * | 2019-08-23 | 2022-08-11 | Sony Group Corporation | Image processing device and method |
| WO2021086023A1 (ko) * | 2019-10-28 | 2021-05-06 | 엘지전자 주식회사 | 적응적 변환을 이용하여 레지듀얼 처리를 수행하는 영상 부호화/복호화 방법, 장치 및 비트스트림을 전송하는 방법 |
| US11490122B2 (en) * | 2020-09-24 | 2022-11-01 | Tencent America LLC | Method and apparatus for video coding |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3542911B2 (ja) * | 1998-08-24 | 2004-07-14 | 日本電気株式会社 | 動画圧縮装置 |
| EP1569458A1 (en) * | 2004-02-12 | 2005-08-31 | Matsushita Electric Industrial Co., Ltd. | Encoding and decoding of video images based on a non-linear quantization |
| US7519229B2 (en) * | 2004-03-30 | 2009-04-14 | Apple, Inc. | Video coding system providing separate coding chains for dynamically selected small-size or full-size playback |
| RU2007128067A (ru) * | 2004-12-22 | 2009-01-27 | Конинклейке Филипс Электроникс Н.В. (Nl) | Масштабируемое кодирование |
| EP2324641A1 (en) * | 2008-08-12 | 2011-05-25 | Nokia Corporation | Video coding using spatially varying transform |
| JP5686499B2 (ja) * | 2009-01-22 | 2015-03-18 | 株式会社Ｎｔｔドコモ | 画像予測符号化装置、方法及びプログラム、画像予測復号装置、方法及びプログラム、並びに、符号化・復号システム及び方法 |
| JP5604825B2 (ja) * | 2009-08-19 | 2014-10-15 | ソニー株式会社 | 画像処理装置および方法 |
| US9706214B2 (en) * | 2010-12-24 | 2017-07-11 | Microsoft Technology Licensing, Llc | Image and video decoding implementations |
| US9854275B2 (en) | 2011-06-25 | 2017-12-26 | Qualcomm Incorporated | Quantization in video coding |
| GB2492333B (en) | 2011-06-27 | 2018-12-12 | British Broadcasting Corp | Video encoding and decoding using transforms |
| US9756360B2 (en) * | 2011-07-19 | 2017-09-05 | Qualcomm Incorporated | Coefficient scanning in video coding |
| MX382735B (es) * | 2011-10-17 | 2025-03-13 | Kt Corp | Método y aparato para codificar/decodificar imágenes. |
| GB2496197A (en) * | 2011-11-07 | 2013-05-08 | Sony Corp | Frequency Domain Video Data Reordering for Encoding |
| GB2496194A (en) * | 2011-11-07 | 2013-05-08 | Sony Corp | Entropy encoding video data using reordering patterns |
| TWI535222B (zh) * | 2012-06-29 | 2016-05-21 | Sony Corp | Image processing apparatus and method |
| CN115065823A (zh) * | 2012-07-02 | 2022-09-16 | 韩国电子通信研究院 | 视频编码/解码方法和非暂时性计算机可读记录介质 |
| US9253483B2 (en) * | 2012-09-25 | 2016-02-02 | Google Technology Holdings LLC | Signaling of scaling list |
-
2013
- 2013-09-25 GB GB1317041.0A patent/GB2518823A/en not_active Withdrawn
-
2014
- 2014-08-28 TW TW103129724A patent/TWI650012B/zh active
- 2014-09-24 RU RU2018130348A patent/RU2760234C2/ru active
- 2014-09-24 AU AU2014326421A patent/AU2014326421B2/en active Active
- 2014-09-24 CN CN201480052828.XA patent/CN105580367B/zh active Active
- 2014-09-24 US US15/021,191 patent/US10575017B2/en active Active
- 2014-09-24 CA CA2923556A patent/CA2923556C/en active Active
- 2014-09-24 CN CN201811267447.XA patent/CN109451311B/zh active Active
- 2014-09-24 RU RU2016115854A patent/RU2665309C2/ru active
- 2014-09-24 WO PCT/GB2014/052902 patent/WO2015044660A1/en not_active Ceased
- 2014-09-24 EP EP14777122.4A patent/EP3036904B1/en active Active
- 2014-09-24 MX MX2016003402A patent/MX366389B/es active IP Right Grant
- 2014-09-24 JP JP2016517463A patent/JP6548635B2/ja active Active
-
2020
- 2020-02-21 US US16/797,095 patent/US10958938B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015044660A1 (en) | 2015-04-02 |
| RU2665309C2 (ru) | 2018-08-28 |
| CA2923556C (en) | 2021-11-23 |
| RU2016115854A (ru) | 2017-10-30 |
| GB201317041D0 (en) | 2013-11-06 |
| AU2014326421A1 (en) | 2016-03-17 |
| US20200195971A1 (en) | 2020-06-18 |
| US20160227252A1 (en) | 2016-08-04 |
| BR112016006042A2 (pt) | 2017-08-01 |
| CN109451311B (zh) | 2023-06-30 |
| US10958938B2 (en) | 2021-03-23 |
| CA2923556A1 (en) | 2015-04-02 |
| AU2014326421B2 (en) | 2019-04-04 |
| GB2518823A (en) | 2015-04-08 |
| RU2760234C2 (ru) | 2021-11-23 |
| MX2016003402A (es) | 2016-06-30 |
| EP3036904B1 (en) | 2020-01-15 |
| TW201517600A (zh) | 2015-05-01 |
| EP3036904A1 (en) | 2016-06-29 |
| CN109451311A (zh) | 2019-03-08 |
| CN105580367A (zh) | 2016-05-11 |
| TWI650012B (zh) | 2019-02-01 |
| RU2018130348A (ru) | 2019-03-15 |
| RU2018130348A3 (es) | 2021-10-20 |
| US10575017B2 (en) | 2020-02-25 |
| JP2016532341A (ja) | 2016-10-13 |
| JP6548635B2 (ja) | 2019-07-24 |
| CN105580367B (zh) | 2018-11-13 |
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Legal Events
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| FG | Grant or registration |