MX2017009558A - Método y aparato para codificar y decodificar imágenes. - Google Patents

Método y aparato para codificar y decodificar imágenes.

Info

Publication number
MX2017009558A
MX2017009558A MX2017009558A MX2017009558A MX2017009558A MX 2017009558 A MX2017009558 A MX 2017009558A MX 2017009558 A MX2017009558 A MX 2017009558A MX 2017009558 A MX2017009558 A MX 2017009558A MX 2017009558 A MX2017009558 A MX 2017009558A
Authority
MX
Mexico
Prior art keywords
coefficients
bit
plane
significance
state
Prior art date
Application number
MX2017009558A
Other languages
English (en)
Inventor
Rissa Tero
Original Assignee
Nokia Technologies Oy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nokia Technologies Oy filed Critical Nokia Technologies Oy
Publication of MX2017009558A publication Critical patent/MX2017009558A/es

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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
    • H04N19/64—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets characterised by ordering of coefficients or of bits for transmission
    • H04N19/647—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets characterised by ordering of coefficients or of bits for transmission using significance based coding, e.g. Embedded Zerotrees of Wavelets [EZW] or Set Partitioning in Hierarchical Trees [SPIHT]
    • 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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/34—Scalability techniques involving progressive bit-plane based encoding of the enhancement layer, e.g. fine granular scalability [FGS]
    • 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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/436—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation using parallelised computational arrangements
    • 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
    • H04N19/90—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
    • H04N19/93—Run-length coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)

Abstract

Se desvelan diversos métodos y aparatos para codificar una imagen. En algunas realizaciones el método comprende obtener una banda que comprende un bit de magnitud de dos o más coeficientes, perteneciendo cada bit de magnitud al mismo plano de bits. Los coeficientes representan una imagen o una parte de la imagen. El método comprende adicionalmente obtener el estado de significancia de dichos coeficientes y el estado de significancia de coeficientes vecinos a dichos dos o más coeficientes en el plano de bits actual; obtener el estado de significancia de dichos coeficientes y el estado de significancia de coeficientes vecinos a los dichos dos o más coeficientes en un plano de bits por encima del plano de bits actual; obtener el estado de significancia de dichos coeficientes en dos planos de bits por encima del plano de bits actual; obtener una matriz de contexto de estado de propagación de significancia que comprende la propagación de significancia de dichos coeficientes y el estado de significancia de coeficientes vecinos a los dichos dos o más coeficientes en el plano de bits actual; y usar al menos una de dichas matrices para construir una etiqueta de contexto para cada uno de dichos dos o más bits de magnitud en paralelo asignando una etiqueta de contexto seleccionada a partir de un conjunto de etiquetas de contexto.
MX2017009558A 2015-03-05 2016-02-15 Método y aparato para codificar y decodificar imágenes. MX2017009558A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1503689.0A GB2536026A (en) 2015-03-05 2015-03-05 Method and apparatus for encoding and decoding images
PCT/FI2016/050093 WO2016139391A1 (en) 2015-03-05 2016-02-15 Method and apparatus for encoding and decoding images

Publications (1)

Publication Number Publication Date
MX2017009558A true MX2017009558A (es) 2017-12-19

Family

ID=52998394

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2017009558A MX2017009558A (es) 2015-03-05 2016-02-15 Método y aparato para codificar y decodificar imágenes.

Country Status (10)

Country Link
US (1) US20180041777A1 (es)
EP (1) EP3266213A4 (es)
JP (1) JP6388732B2 (es)
KR (1) KR20170122801A (es)
CN (1) CN107431823A (es)
CA (1) CA2971963A1 (es)
GB (1) GB2536026A (es)
MX (1) MX2017009558A (es)
PH (1) PH12017501241A1 (es)
WO (1) WO2016139391A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6975137B2 (ja) * 2015-09-18 2021-12-01 コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. 高速かつ効率的な画像圧縮及び解凍のための方法及び装置
CN114374840B (zh) * 2018-04-04 2024-04-12 阿里健康信息技术有限公司 一种图像编码方法、装置及存储介质
CN109492648B (zh) * 2018-09-21 2021-12-14 云南大学 基于离散余弦系数多尺度小波变换的显著性检测方法
WO2020132853A1 (en) 2018-12-25 2020-07-02 Zhejiang Dahua Technology Co., Ltd. Systems and methods for image processing
WO2020252730A1 (zh) * 2019-06-20 2020-12-24 深圳市大疆创新科技有限公司 位平面解码的方法和装置
WO2022109916A1 (zh) * 2020-11-26 2022-06-02 深圳市大疆创新科技有限公司 图像编码方法、解码方法、装置、图像处理系统、可移动平台、图传系统及存储介质
CN117354545B (zh) * 2023-12-06 2024-02-23 成都索贝数码科技股份有限公司 视频图像小波变换高频系数按限定尺寸分块编码方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5867602A (en) * 1994-09-21 1999-02-02 Ricoh Corporation Reversible wavelet transform and embedded codestream manipulation
JP3990949B2 (ja) * 2002-07-02 2007-10-17 キヤノン株式会社 画像符号化装置及び画像符号化方法
US7418146B2 (en) * 2004-02-10 2008-08-26 Sanyo Electric Co., Ltd. Image decoding apparatus
CN1671177A (zh) * 2004-03-19 2005-09-21 北京大学 Jpeg2000分数位平面编码方法及电路
JP2005341368A (ja) * 2004-05-28 2005-12-08 Fujitsu Ltd ビットモデリング演算器
US7352903B2 (en) * 2004-08-17 2008-04-01 Pegasus Imaging Corporation Methods and apparatus for implementing JPEG 2000 encoding operations
US7245241B2 (en) * 2005-11-25 2007-07-17 Microsoft Corporation Image coding with scalable context quantization
US7760948B1 (en) * 2006-10-13 2010-07-20 Xilinx, Inc. Parallel coefficient bit modeling
US20080118169A1 (en) * 2006-11-16 2008-05-22 Sohm Oliver P Method for Optimizing Software Implementations of the JPEG2000 Binary Arithmetic Encoder

Also Published As

Publication number Publication date
KR20170122801A (ko) 2017-11-06
PH12017501241A1 (en) 2017-10-30
JP2018509863A (ja) 2018-04-05
GB201503689D0 (en) 2015-04-22
CA2971963A1 (en) 2016-09-09
CN107431823A (zh) 2017-12-01
JP6388732B2 (ja) 2018-09-12
GB2536026A (en) 2016-09-07
EP3266213A4 (en) 2018-10-10
WO2016139391A1 (en) 2016-09-09
US20180041777A1 (en) 2018-02-08
EP3266213A1 (en) 2018-01-10

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