WO2008142956A1 - 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 - Google Patents

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 Download PDF

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Publication number
WO2008142956A1
WO2008142956A1 PCT/JP2008/058166 JP2008058166W WO2008142956A1 WO 2008142956 A1 WO2008142956 A1 WO 2008142956A1 JP 2008058166 W JP2008058166 W JP 2008058166W WO 2008142956 A1 WO2008142956 A1 WO 2008142956A1
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WO
WIPO (PCT)
Prior art keywords
video encoding
picture
entropy encoding
inputted
encoding
Prior art date
Application number
PCT/JP2008/058166
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English (en)
French (fr)
Inventor
Keiichi Chono
Original Assignee
Nec Corporation
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 Nec Corporation filed Critical Nec Corporation
Priority to JP2009515119A priority Critical patent/JPWO2008142956A1/ja
Priority to EP08740898A priority patent/EP2150061A4/en
Priority to US12/601,484 priority patent/US8396311B2/en
Publication of WO2008142956A1 publication Critical patent/WO2008142956A1/ja

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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
    • 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
    • H04N19/115—Selection of the code volume for a coding unit prior to 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
    • H04N19/10—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
    • H04N19/102—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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence estimation
    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/149—Data rate or code amount at the encoder output by estimating the code amount by means of a model, e.g. mathematical model or statistical model
    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/15—Data rate or code amount at the encoder output by monitoring actual compressed data size at the memory before deciding storage at the transmission buffer
    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of the transmission buffer
    • 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
    • H04N19/60—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

Abstract

　画質劣化の程度が小さく、ピクチャよりも細かい単位での符号量制御が可能であり、ピクチャの符号化完了時間を一定時間に保証できるようにする。シンボル数推定器２０８は、ピクチャを構成する複数マクロブロックのビン総数２０９を推定する。ビン数２０９は、エントロピ符号化選択器２１０は、入力されたビン数２０９を利用してエントロピ符号化モード選択信号２３２をエントロピ符号化器２１５に出力してＣＡＢＡＣ器またはＶＬＣ器を選択させる。ＣＰＵ２７１はプログラム格納部２７２に格納された制御プログラムを実行することで映像符号化を行う。
PCT/JP2008/058166 2007-05-21 2008-04-28 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 WO2008142956A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2009515119A JPWO2008142956A1 (ja) 2007-05-21 2008-04-28 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
EP08740898A EP2150061A4 (en) 2007-05-21 2008-04-28 VIDEO CODING DEVICE, VIDEO CODING METHOD, AND VIDEO CODING PROGRAM
US12/601,484 US8396311B2 (en) 2007-05-21 2008-04-28 Image encoding apparatus, image encoding method, and image encoding program

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007134162 2007-05-21
JP2007-134162 2007-05-21

Publications (1)

Publication Number Publication Date
WO2008142956A1 true WO2008142956A1 (ja) 2008-11-27

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Country Status (5)

Country Link
US (1) US8396311B2 (ja)
EP (1) EP2150061A4 (ja)
JP (1) JPWO2008142956A1 (ja)
TW (1) TW200917850A (ja)
WO (1) WO2008142956A1 (ja)

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US8542748B2 (en) 2008-03-28 2013-09-24 Sharp Laboratories Of America, Inc. Methods and systems for parallel video encoding and decoding
WO2011080851A1 (ja) * 2009-12-28 2011-07-07 パナソニック株式会社 画像符号化装置および集積回路
ES2627431T3 (es) 2010-05-12 2017-07-28 Nippon Telegraph And Telephone Corporation Método y aparato de control de cantidad de código
US20120014431A1 (en) * 2010-07-14 2012-01-19 Jie Zhao Methods and Systems for Parallel Video Encoding and Parallel Video Decoding
TWI418220B (zh) * 2010-08-12 2013-12-01 Via Telecom Co Ltd 結合軟硬體實現之視訊處理系統，方法及其電腦程式產品
US9313514B2 (en) 2010-10-01 2016-04-12 Sharp Kabushiki Kaisha Methods and systems for entropy coder initialization
EP3703263A1 (en) 2011-01-14 2020-09-02 GE Video Compression, LLC Entropy encoding and decoding scheme
US9231616B2 (en) * 2011-08-05 2016-01-05 Broadcom Corporation Unified binarization for CABAC/CAVLC entropy coding
KR20240038130A (ko) * 2012-02-04 2024-03-22 엘지전자 주식회사 비디오 인코딩 방법, 비디오 디코딩 방법 및 이를 이용하는 장치
US10021409B2 (en) * 2012-05-09 2018-07-10 Integrated Device Technology, Inc. Apparatuses and methods for estimating bitstream bit counts
JP2015177466A (ja) * 2014-03-17 2015-10-05 富士通株式会社 動画符号化装置、動画符号化方法および動画符号化プログラム
CN106412579B (zh) * 2015-07-30 2019-07-16 浙江大华技术股份有限公司 一种图像的编码、解码方法和装置
EP3320683A4 (en) * 2015-07-30 2018-12-05 Zhejiang Dahua Technology Co., Ltd Methods and systems for image compression
US11283539B2 (en) * 2016-12-05 2022-03-22 Telefonaktiebolaget Lm Ericsson (Publ) Methods, encoder and decoder for handling a data stream for transmission between a remote unit and a base unit of a base station system
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US20210076047A1 (en) * 2019-09-11 2021-03-11 Chung Yuan Christian University System, apparatus and method for data compaction and decompaction

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Also Published As

Publication number Publication date
JPWO2008142956A1 (ja) 2010-08-05
US20100172593A1 (en) 2010-07-08
TW200917850A (en) 2009-04-16
EP2150061A1 (en) 2010-02-03
US8396311B2 (en) 2013-03-12
EP2150061A4 (en) 2011-07-20

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