BRPI0506196A - pré/pós-filtragem reversìvel bidimensional para transformada biortogonal superposta - Google Patents

pré/pós-filtragem reversìvel bidimensional para transformada biortogonal superposta

Info

Publication number
BRPI0506196A
BRPI0506196A BRPI0506196-2A BRPI0506196A BRPI0506196A BR PI0506196 A BRPI0506196 A BR PI0506196A BR PI0506196 A BRPI0506196 A BR PI0506196A BR PI0506196 A BRPI0506196 A BR PI0506196A
Authority
BR
Brazil
Prior art keywords
transform
superimposed
stages
reversible
operator
Prior art date
Application number
BRPI0506196-2A
Other languages
English (en)
Inventor
Chengjie Tu
Sridhar Srinivasan
Original Assignee
Microsoft Corp
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
Priority claimed from US11/035,991 external-priority patent/US7305139B2/en
Application filed by Microsoft Corp filed Critical Microsoft Corp
Publication of BRPI0506196A publication Critical patent/BRPI0506196A/pt

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0212—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using orthogonal transformation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/26—Pre-filtering or post-filtering
    • 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
    • H04N19/10—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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform 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
    • H04N19/60—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
    • H04N19/60—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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Peptides Or Proteins (AREA)
  • Prostheses (AREA)

Abstract

"PRé/PóS-FILTRAGEM REVERSìVEL BIDIMENSIONAL PARA TRANSFORMADA BIORTOGONAL SUPERPOSTA". Uma transformada superposta eficiente utilizada nos codecs de mídia digital é realizada utilizando-se um operador de sobreposição bidimensional reversível para pré/pós filtragem que é aplicada em uma grade enviesada relativa a uma transformada de núcleo. O operador superposta bidimensional é baseado em um operador superposta reversível unidimensional aplicado separadamente, que é redisposto como uma seqüência de transformadas elementares nos estágios intercalados nos subconjuntos de pontos do respectivo bloco e implementada adicionalmente nas etapas de elevação para obter uma eficiência de computação. Os estágios intercalados incluem a aplicação de rotação e estágios de escalonamento entre os estágios inicial e final envolvendo uma transformada Hadamard 2x2 normalizada.
BRPI0506196-2A 2005-01-14 2005-12-21 pré/pós-filtragem reversìvel bidimensional para transformada biortogonal superposta BRPI0506196A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/035,991 US7305139B2 (en) 2004-12-17 2005-01-14 Reversible 2-dimensional pre-/post-filtering for lapped biorthogonal transform

Publications (1)

Publication Number Publication Date
BRPI0506196A true BRPI0506196A (pt) 2006-09-19

Family

ID=36577456

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0506196-2A BRPI0506196A (pt) 2005-01-14 2005-12-21 pré/pós-filtragem reversìvel bidimensional para transformada biortogonal superposta

Country Status (8)

Country Link
EP (1) EP1684521B1 (pt)
KR (1) KR101036733B1 (pt)
CN (2) CN1805548B (pt)
AU (1) AU2005239628B2 (pt)
BR (1) BRPI0506196A (pt)
CA (1) CA2529914C (pt)
MX (1) MXPA05014004A (pt)
RU (1) RU2412473C2 (pt)

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US7428342B2 (en) * 2004-12-17 2008-09-23 Microsoft Corporation Reversible overlap operator for efficient lossless data compression
US8036274B2 (en) 2005-08-12 2011-10-11 Microsoft Corporation SIMD lapped transform-based digital media encoding/decoding
CN101552918B (zh) * 2008-03-31 2011-05-11 联咏科技股份有限公司 高通系数的区块类型信息的产生方法与其产生电路
CN101552919B (zh) * 2008-04-02 2011-03-02 联咏科技股份有限公司 具有执行重叠滤波以及核心转换的运算方法及其装置
US8447591B2 (en) 2008-05-30 2013-05-21 Microsoft Corporation Factorization of overlapping tranforms into two block transforms
US8275209B2 (en) * 2008-10-10 2012-09-25 Microsoft Corporation Reduced DC gain mismatch and DC leakage in overlap transform processing
KR101054644B1 (ko) * 2008-11-25 2011-08-08 에스케이 텔레콤주식회사 동작 추정 기반 영상 부호화／복호화 장치 및 방법
US9883207B2 (en) 2009-12-31 2018-01-30 Thomson Licensing Dtv Methods and apparatus for adaptive coupled pre-processing and post-processing filters for video encoding and decoding
CN102572432B (zh) * 2010-12-23 2016-12-14 马维尔国际贸易有限公司 用于视频帧旋转的方法和装置
CN103348675B (zh) * 2011-01-28 2016-05-25 日本电气株式会社 二维信号编码设备和二维信号编码方法
CN102665076B (zh) * 2012-04-28 2014-04-02 武汉科技大学 一种重叠变换后置滤波器的构造方法
RU2509437C1 (ru) * 2012-07-17 2014-03-10 Федеральное государственное унитарное предприятие "Государственный научно-исследовательский институт авиационных систем" Способ формирования целочисленных ортогональных декоррелирующих матриц заданных размеров для прямого и обратного декоррелирующего преобразования видеоизображений и устройство для его осуществления
FR2994517A1 (fr) * 2012-08-10 2014-02-14 I Ces Innovative Compression Engineering Solutions Procede, notamment pour optimiser la compression d'un fichier video et/ou audio, utilisant un codec affectant un poids en bits par seconde au fichier compresse correspondant, et systeme associe.
US10146500B2 (en) * 2016-08-31 2018-12-04 Dts, Inc. Transform-based audio codec and method with subband energy smoothing
CN109190083B (zh) * 2018-07-19 2023-04-28 珠海市杰理科技股份有限公司 阵列信号的对齐方法、装置、计算机设备和存储介质
CN110233626B (zh) * 2019-07-05 2022-10-25 重庆邮电大学 基于二维自适应量化的机械振动信号边缘数据无损压缩方法
NO346137B1 (en) * 2020-06-17 2022-03-14 Pexip AS Method, computer program and system for detecting changes and moving objects in a video view

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US6487574B1 (en) * 1999-02-26 2002-11-26 Microsoft Corp. System and method for producing modulated complex lapped transforms
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Also Published As

Publication number Publication date
EP1684521A3 (en) 2010-12-08
KR101036733B1 (ko) 2011-05-24
EP1684521B1 (en) 2019-07-03
RU2412473C2 (ru) 2011-02-20
KR20060083125A (ko) 2006-07-20
CN1805548B (zh) 2011-05-25
CN102158711A (zh) 2011-08-17
EP1684521A2 (en) 2006-07-26
MXPA05014004A (es) 2006-07-13
CA2529914C (en) 2014-01-28
CN1805548A (zh) 2006-07-19
CA2529914A1 (en) 2006-07-14
CN102158711B (zh) 2013-03-13
AU2005239628A1 (en) 2006-08-03
AU2005239628B2 (en) 2010-08-05
RU2005138722A (ru) 2007-06-20

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Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Owner name: MICROSOFT TECHNOLOGY LICENSING, LLC (US)

B15K Others concerning applications: alteration of classification

Ipc: H04N 19/86 (2014.01), H04N 19/80 (2014.01)

B07A Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted