CA2648125C - Method and system for real-time adaptive quantization control - Google Patents

Method and system for real-time adaptive quantization control Download PDF

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Publication number
CA2648125C
CA2648125C CA2648125A CA2648125A CA2648125C CA 2648125 C CA2648125 C CA 2648125C CA 2648125 A CA2648125 A CA 2648125A CA 2648125 A CA2648125 A CA 2648125A CA 2648125 C CA2648125 C CA 2648125C
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group
data block
pixels
differences
quantizer scale
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CA2648125A
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French (fr)
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CA2648125A1 (en
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Eldad Melamed
Roni M. Sadeh
Erez Barniv
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Ceva DSP Ltd
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Ceva DSP Ltd
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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
    • H04N19/189—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
    • H04N19/192—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 the adaptation method, adaptation tool or adaptation type being iterative or recursive
    • H04N19/194—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 the adaptation method, adaptation tool or adaptation type being iterative or recursive involving only two passes
    • 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
    • H04N19/134—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
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • 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
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • 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
    • H04N19/17—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
    • 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
    • H04N19/182—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 pixel
    • 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
    • H04N19/189—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
    • 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
    • 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
    • H04N19/189—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
    • 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
    • H04N19/197—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 determination of the initial value of an encoding parameter
    • 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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  • 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, Expansion, Code Conversion, And Decoders (AREA)
CA2648125A 2007-12-31 2008-12-24 Method and system for real-time adaptive quantization control Active CA2648125C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/967,288 US8213502B2 (en) 2007-12-31 2007-12-31 Method and system for real-time adaptive quantization control
US11/967,288 2007-12-31

Publications (2)

Publication Number Publication Date
CA2648125A1 CA2648125A1 (en) 2009-06-30
CA2648125C true CA2648125C (en) 2014-09-23

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Family Applications (1)

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CA2648125A Active CA2648125C (en) 2007-12-31 2008-12-24 Method and system for real-time adaptive quantization control

Country Status (4)

Country Link
US (1) US8213502B2 (https=)
EP (1) EP2076045B1 (https=)
JP (1) JP5015129B2 (https=)
CA (1) CA2648125C (https=)

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JP4833309B2 (ja) * 2009-03-06 2011-12-07 株式会社東芝 動画像圧縮符号化装置
KR101885258B1 (ko) * 2010-05-14 2018-08-06 삼성전자주식회사 비디오 신호의 부호화 방법과 그 장치, 및 비디오 복호화 방법과 그 장치
US9172960B1 (en) * 2010-09-23 2015-10-27 Qualcomm Technologies, Inc. Quantization based on statistics and threshold of luminanceand chrominance
US8885706B2 (en) 2011-09-16 2014-11-11 Google Inc. Apparatus and methodology for a video codec system with noise reduction capability
US9131073B1 (en) 2012-03-02 2015-09-08 Google Inc. Motion estimation aided noise reduction
US9344729B1 (en) 2012-07-11 2016-05-17 Google Inc. Selective prediction signal filtering
GB2513112B (en) * 2013-04-08 2020-01-08 Snell Advanced Media Ltd Video sequence processing
US10102613B2 (en) 2014-09-25 2018-10-16 Google Llc Frequency-domain denoising

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US5073821A (en) * 1989-01-30 1991-12-17 Matsushita Electric Industrial Co., Ltd. Orthogonal transform coding apparatus for reducing the amount of coded signals to be processed and transmitted
JP2839339B2 (ja) * 1990-08-06 1998-12-16 松下電器産業株式会社 直交変換符号化装置および直交変換符号化方法
DE69213511T2 (de) * 1991-03-07 1997-04-17 Mitsubishi Electric Corp Kodiervorrichtung zum Kodieren eines digitalen Bildsignals
JP2646920B2 (ja) * 1991-03-07 1997-08-27 三菱電機株式会社 高能率符号化装置
US5479211A (en) * 1992-04-30 1995-12-26 Olympus Optical Co., Ltd. Image-signal decoding apparatus
KR100192270B1 (ko) * 1996-02-03 1999-06-15 구자홍 에이치디티브이 비데오 디코더 회로
KR100243430B1 (ko) * 1997-12-31 2000-02-01 구자홍 적응형 양자화 제어방법
US6658157B1 (en) * 1999-06-29 2003-12-02 Sony Corporation Method and apparatus for converting image information
US6782135B1 (en) * 2000-02-18 2004-08-24 Conexant Systems, Inc. Apparatus and methods for adaptive digital video quantization
JP4218920B2 (ja) * 2000-04-07 2009-02-04 キヤノン株式会社 画像処理装置及び画像処理方法並びに記憶媒体
US6741758B2 (en) * 2000-04-07 2004-05-25 Canon Kabushiki Kaisha Image processor and image processing method
JP4130780B2 (ja) * 2002-04-15 2008-08-06 松下電器産業株式会社 画像符号化方法および画像復号化方法
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JP2007081474A (ja) * 2005-09-09 2007-03-29 Toshiba Corp 画像符号化装置及び方法
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Also Published As

Publication number Publication date
US20090168869A1 (en) 2009-07-02
EP2076045A1 (en) 2009-07-01
CA2648125A1 (en) 2009-06-30
EP2076045B1 (en) 2018-11-28
JP2009165124A (ja) 2009-07-23
US8213502B2 (en) 2012-07-03
JP5015129B2 (ja) 2012-08-29

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