JP4865662B2 - エントロピー符号化装置、エントロピー符号化方法およびコンピュータプログラム - Google Patents

エントロピー符号化装置、エントロピー符号化方法およびコンピュータプログラム Download PDF

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JP4865662B2
JP4865662B2 JP2007250066A JP2007250066A JP4865662B2 JP 4865662 B2 JP4865662 B2 JP 4865662B2 JP 2007250066 A JP2007250066 A JP 2007250066A JP 2007250066 A JP2007250066 A JP 2007250066A JP 4865662 B2 JP4865662 B2 JP 4865662B2
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JP2007250066A
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JP2009081726A (ja
JP2009081726A5 (https=
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雅司 川上
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Canon Inc
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Canon Inc
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Priority to JP2007250066A priority Critical patent/JP4865662B2/ja
Priority to US12/207,084 priority patent/US7830284B2/en
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H03M7/4006—Conversion to or from arithmetic code

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
JP2007250066A 2007-09-26 2007-09-26 エントロピー符号化装置、エントロピー符号化方法およびコンピュータプログラム Expired - Fee Related JP4865662B2 (ja)

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Application Number Priority Date Filing Date Title
JP2007250066A JP4865662B2 (ja) 2007-09-26 2007-09-26 エントロピー符号化装置、エントロピー符号化方法およびコンピュータプログラム
US12/207,084 US7830284B2 (en) 2007-09-26 2008-09-09 Entropy encoding apparatus, entropy encoding method, and computer program

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Application Number Priority Date Filing Date Title
JP2007250066A JP4865662B2 (ja) 2007-09-26 2007-09-26 エントロピー符号化装置、エントロピー符号化方法およびコンピュータプログラム

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JP2009081726A JP2009081726A (ja) 2009-04-16
JP2009081726A5 JP2009081726A5 (https=) 2010-08-12
JP4865662B2 true JP4865662B2 (ja) 2012-02-01

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JP2007250066A Expired - Fee Related JP4865662B2 (ja) 2007-09-26 2007-09-26 エントロピー符号化装置、エントロピー符号化方法およびコンピュータプログラム

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US (1) US7830284B2 (https=)
JP (1) JP4865662B2 (https=)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4915350B2 (ja) * 2008-01-16 2012-04-11 日本電気株式会社 エントロピ符号化器、映像符号化装置、映像符号化方法および映像符号化プログラム
US8138956B2 (en) * 2008-06-02 2012-03-20 Mediatek Inc. CABAC encoder and CABAC encoding method
US9369736B2 (en) * 2010-04-05 2016-06-14 Samsung Electronics Co., Ltd. Low complexity entropy-encoding/decoding method and apparatus
US8344917B2 (en) * 2010-09-30 2013-01-01 Sharp Laboratories Of America, Inc. Methods and systems for context initialization in video coding and decoding
US8378861B2 (en) * 2010-11-29 2013-02-19 Arm Limited Storage of probability values for contexts used in arithmetic coding
US20130272373A1 (en) * 2011-11-15 2013-10-17 Intel Corporation Video encoder with 2-bin per clock cabac encoding

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6677869B2 (en) * 2001-02-22 2004-01-13 Panasonic Communications Co., Ltd. Arithmetic coding apparatus and image processing apparatus
JP4240283B2 (ja) 2002-10-10 2009-03-18 ソニー株式会社 復号装置及び復号方法
JP4438663B2 (ja) * 2005-03-28 2010-03-24 日本ビクター株式会社 算術符号化装置及び算術符号化方法
JP4211780B2 (ja) * 2005-12-27 2009-01-21 三菱電機株式会社 デジタル信号符号化装置、デジタル信号復号装置、デジタル信号算術符号化方法、およびデジタル信号算術復号方法
KR100750165B1 (ko) * 2006-02-22 2007-08-17 삼성전자주식회사 압축률 향상을 위해 개선된 컨텍스트 모델 선택을 사용하는ｃａｂａｃ 부호화 방법 및 장치, 그리고 ｃａｂａｃ복호화 방법 및 장치
JP2007300517A (ja) * 2006-05-02 2007-11-15 Sony Corp 動画像処理方法、動画像処理方法のプログラム、動画像処理方法のプログラムを記録した記録媒体及び動画像処理装置
US7365659B1 (en) * 2006-12-06 2008-04-29 Silicon Image Gmbh Method of context adaptive binary arithmetic coding and coding apparatus using the same
US8422552B2 (en) * 2007-03-29 2013-04-16 James Au Entropy coding for video processing applications

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US20090079601A1 (en) 2009-03-26
JP2009081726A (ja) 2009-04-16
US7830284B2 (en) 2010-11-09

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