BR112016022085A8 - determinação de tamanho de paleta, entradas de paleta e filtragem de blocos codificados por paleta em codificação de vídeo - Google Patents
determinação de tamanho de paleta, entradas de paleta e filtragem de blocos codificados por paleta em codificação de vídeoInfo
- Publication number
- BR112016022085A8 BR112016022085A8 BR112016022085A BR112016022085A BR112016022085A8 BR 112016022085 A8 BR112016022085 A8 BR 112016022085A8 BR 112016022085 A BR112016022085 A BR 112016022085A BR 112016022085 A BR112016022085 A BR 112016022085A BR 112016022085 A8 BR112016022085 A8 BR 112016022085A8
- Authority
- BR
- Brazil
- Prior art keywords
- palette
- filtering
- entries
- encoding
- video
- Prior art date
Links
- 238000001914 filtration Methods 0.000 title abstract 5
- 238000000034 method Methods 0.000 abstract 3
- 239000003086 colorant Substances 0.000 abstract 2
- 230000003044 adaptive effect Effects 0.000 abstract 1
Classifications
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- G06T5/00—Image enhancement or restoration
- G06T5/40—Image enhancement or restoration using histogram techniques
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/40—Analysis of texture
- G06T7/41—Analysis of texture based on statistical description of texture
- G06T7/44—Analysis of texture based on statistical description of texture using image operators, e.g. filters, edge density metrics or local histograms
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- G06T7/00—Image analysis
- G06T7/90—Determination of colour characteristics
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- G06—COMPUTING; CALCULATING OR COUNTING
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- G06T9/00—Image coding
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Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Probability & Statistics with Applications (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Image Processing (AREA)
- Color Television Systems (AREA)
Abstract
determinação de tamanho de paleta, entradas de paleta e filtragem de blocos codificados por paleta em codificação de vídeo. são descrita técnicas para codificação baseada em paleta. na codificação baseada em paleta, um codificador de vídeo 20 pode formar uma paleta como uma tabela de cores para representar dados de vídeo de um dado bloco. a codificação baseada em paleta pode ser útil para codificar blocos de dados de vídeo que têm um número relativamente pequeno de cores. em vez de codificar valores de pixel reais ou seus resíduos para o dado bloco, o codificador de vídeo pode codificar valores de índice para um ou mais dos pixels. os valores de índice mapeiam os pixels em entradas na paleta e representam as cores dos pixels. são descritas técnicas para determinar se será desabilitada a filtragem, tal como a filtragem desbloqueadora e a filtragem por desvio adaptativo às amostras (sao), de blocos codificados por paleta em um codificador de vídeo ou em um decodificador de vídeo. são também descritas técnicas para modificar o tamanho de paleta e as entradas de paleta de uma paleta no codificador de vídeo com base em custos de distorção de taxa.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201461970838P | 2014-03-26 | 2014-03-26 | |
US61/970,838 | 2014-03-26 | ||
US14/667,900 US9654806B2 (en) | 2014-03-26 | 2015-03-25 | Determining palette size, palette entries and filtering of palette coded blocks in video coding |
US14/667,900 | 2015-03-25 | ||
PCT/US2015/022771 WO2015148814A1 (en) | 2014-03-26 | 2015-03-26 | Determining palette size, palette entries and filtering of palette coded blocks in video coding |
Publications (3)
Publication Number | Publication Date |
---|---|
BR112016022085A2 BR112016022085A2 (pt) | 2017-08-15 |
BR112016022085A8 true BR112016022085A8 (pt) | 2021-07-13 |
BR112016022085B1 BR112016022085B1 (pt) | 2024-04-30 |
Family
ID=54192242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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BR112016022085-4A BR112016022085B1 (pt) | 2014-03-26 | 2015-03-26 | Determinação de tamanho de paleta, entradas de paleta e filtragem de blocos codificados por paleta em codificação de vídeo |
Country Status (24)
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US (1) | US9654806B2 (pt) |
EP (1) | EP3123727A1 (pt) |
JP (1) | JP6640105B2 (pt) |
KR (1) | KR102352642B1 (pt) |
CN (1) | CN106105228B (pt) |
AU (1) | AU2015235991B2 (pt) |
BR (1) | BR112016022085B1 (pt) |
CA (1) | CA2939678C (pt) |
CL (1) | CL2016002393A1 (pt) |
CR (1) | CR20160447A (pt) |
DO (1) | DOP2016000258A (pt) |
GT (1) | GT201600200A (pt) |
HK (1) | HK1226229A1 (pt) |
IL (1) | IL247899B (pt) |
MX (1) | MX357993B (pt) |
MY (1) | MY177780A (pt) |
PH (1) | PH12016501573B1 (pt) |
RU (1) | RU2678490C2 (pt) |
SA (1) | SA516371863B1 (pt) |
SG (1) | SG11201606420TA (pt) |
SV (1) | SV2016005285A (pt) |
TW (1) | TWI666918B (pt) |
WO (1) | WO2015148814A1 (pt) |
ZA (1) | ZA201607321B (pt) |
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CN105659606B (zh) | 2013-10-14 | 2019-06-18 | 微软技术许可有限责任公司 | 用于视频和图像编码和解码的方法、***和介质 |
KR101897378B1 (ko) * | 2013-12-10 | 2018-09-10 | 캐논 가부시끼가이샤 | 팔레트 코딩 모드에서 팔레트를 인코딩 또는 디코딩하기 위한 방법 및 장치 |
WO2015090219A1 (en) | 2013-12-18 | 2015-06-25 | Mediatek Inc. | Method and apparatus for palette initialization and management |
US10972742B2 (en) * | 2013-12-19 | 2021-04-06 | Canon Kabushiki Kaisha | Encoding process using a palette mode |
CN110225345B (zh) | 2013-12-27 | 2022-07-19 | 寰发股份有限公司 | 用于主颜色索引图编码的方法及装置 |
EP3087738B1 (en) * | 2013-12-27 | 2019-10-02 | MediaTek Inc. | Method and apparatus for palette coding with cross block prediction |
EP3087742B1 (en) | 2013-12-27 | 2020-09-23 | HFI Innovation Inc. | Method and apparatus for syntax redundancy removal in palette coding |
WO2015103980A1 (en) | 2014-01-07 | 2015-07-16 | Mediatek Inc. | Method and apparatus for color index prediction |
US10542274B2 (en) | 2014-02-21 | 2020-01-21 | Microsoft Technology Licensing, Llc | Dictionary encoding and decoding of screen content |
AU2014202921B2 (en) * | 2014-05-29 | 2017-02-02 | Canon Kabushiki Kaisha | Method, apparatus and system for de-blocking a block of video samples |
US9924175B2 (en) | 2014-06-11 | 2018-03-20 | Qualcomm Incorporated | Determining application of deblocking filtering to palette coded blocks in video coding |
US10136141B2 (en) | 2014-06-11 | 2018-11-20 | Qualcomm Incorporated | Determining quantization parameter (QP) values and delta QP values for palette coded blocks in video coding |
EP3917146A1 (en) | 2014-09-30 | 2021-12-01 | Microsoft Technology Licensing, LLC | Rules for intra-picture prediction modes when wavefront parallel processing is enabled |
US9596479B2 (en) * | 2014-10-07 | 2017-03-14 | Hfi Innovation Inc. | Method of pulse-code modulation and palette coding for video coding |
JP6122516B2 (ja) | 2015-01-28 | 2017-04-26 | 財團法人工業技術研究院Industrial Technology Research Institute | エンコーディング方法及びエンコーダ |
US10390028B2 (en) * | 2015-06-03 | 2019-08-20 | Mediatek Inc. | Methods for palette coding of image and video data |
EP3308540B1 (en) * | 2015-06-09 | 2020-04-15 | Microsoft Technology Licensing, LLC | Robust encoding/decoding of escape-coded pixels in palette mode |
GB2539486B (en) * | 2015-06-18 | 2019-07-31 | Gurulogic Microsystems Oy | Encoder, decoder and method employing palette compression |
US10097842B2 (en) * | 2015-09-18 | 2018-10-09 | Qualcomm Incorporated | Restriction of escape pixel signaled values in palette mode video coding |
JP6613842B2 (ja) * | 2015-11-24 | 2019-12-04 | 富士通株式会社 | 画像符号化装置、画像符号化方法、及び画像符号化プログラム |
JP6662123B2 (ja) * | 2016-03-14 | 2020-03-11 | 富士通株式会社 | 画像符号化装置、画像符号化方法、及び画像符号化プログラム |
CN110024383B (zh) | 2016-09-23 | 2024-03-08 | 弗劳恩霍夫应用研究促进协会 | 图像压缩技术 |
CN106686384B (zh) * | 2016-11-29 | 2019-05-24 | 西安万像电子科技有限公司 | 文字块的压缩方法和装置以及图像压缩方法和装置 |
CN106604032B (zh) * | 2016-11-29 | 2020-02-04 | 西安万像电子科技有限公司 | 图像中文字块的压缩方法和装置及图像压缩方法和装置 |
CN106851294B (zh) * | 2017-01-03 | 2018-08-14 | 西安万像电子科技有限公司 | 图像的压缩方法和装置及其文字块的压缩方法和装置 |
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- 2016-12-16 HK HK16114356A patent/HK1226229A1/zh unknown
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