JP2005514880A - 画素値を抽出する方法および装置 - Google Patents

画素値を抽出する方法および装置 Download PDF

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Publication number
JP2005514880A
JP2005514880A JP2003559156A JP2003559156A JP2005514880A JP 2005514880 A JP2005514880 A JP 2005514880A JP 2003559156 A JP2003559156 A JP 2003559156A JP 2003559156 A JP2003559156 A JP 2003559156A JP 2005514880 A JP2005514880 A JP 2005514880A
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JP
Japan
Prior art keywords
dct
extracted
pixel
dct coefficients
block
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Withdrawn
Application number
JP2003559156A
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English (en)
Japanese (ja)
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JP2005514880A5 (enExample
Inventor
ジャン、ジャンミン
シュ、リ‐クン
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British Telecommunications PLC
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British Telecommunications PLC
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Publication date
Application filed by British Telecommunications PLC filed Critical British Telecommunications PLC
Publication of JP2005514880A publication Critical patent/JP2005514880A/ja
Publication of JP2005514880A5 publication Critical patent/JP2005514880A5/ja
Withdrawn legal-status Critical Current

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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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • 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
    • H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
    • 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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • 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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Complex Calculations (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Image Processing (AREA)
JP2003559156A 2002-01-07 2002-12-24 画素値を抽出する方法および装置 Withdrawn JP2005514880A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02250075 2002-01-07
PCT/GB2002/005924 WO2003058972A2 (en) 2002-01-07 2002-12-24 Method and apparatus for extracting pixel values

Related Child Applications (1)

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JP2009239212A Division JP4515534B2 (ja) 2002-01-07 2009-10-16 画素値を抽出する方法および装置

Publications (2)

Publication Number Publication Date
JP2005514880A true JP2005514880A (ja) 2005-05-19
JP2005514880A5 JP2005514880A5 (enExample) 2006-02-16

Family

ID=8185628

Family Applications (2)

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JP2003559156A Withdrawn JP2005514880A (ja) 2002-01-07 2002-12-24 画素値を抽出する方法および装置
JP2009239212A Expired - Fee Related JP4515534B2 (ja) 2002-01-07 2009-10-16 画素値を抽出する方法および装置

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2009239212A Expired - Fee Related JP4515534B2 (ja) 2002-01-07 2009-10-16 画素値を抽出する方法および装置

Country Status (8)

Country Link
US (1) US7444033B2 (enExample)
EP (1) EP1461958A2 (enExample)
JP (2) JP2005514880A (enExample)
KR (1) KR100964066B1 (enExample)
CN (1) CN100502510C (enExample)
AU (1) AU2002356326A1 (enExample)
CA (1) CA2470346C (enExample)
WO (1) WO2003058972A2 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007014590A1 (de) * 2006-04-11 2007-11-15 Mediatek Inc. Verfahren und System zur Bildüberlagerungsbearbeitung
JP4901450B2 (ja) * 2006-12-19 2012-03-21 株式会社東芝 動画像符号化装置
US8417045B2 (en) 2010-07-29 2013-04-09 Infoprint Solutions Company Llc Mechanism for processing order-16 discrete cosine transforms
CN109151480A (zh) * 2017-06-16 2019-01-04 宝山钢铁股份有限公司 一种视频编码无线传送接收装置及方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2103455A (en) 1981-07-22 1983-02-16 Post Office Method of transmitting an image and apparatus for carrying out the method
US5049992A (en) 1990-08-27 1991-09-17 Zenith Electronics Corporation HDTV system with receivers operable at different levels of resolution
US5703965A (en) * 1992-06-05 1997-12-30 The Regents Of The University Of California Image compression/decompression based on mathematical transform, reduction/expansion, and image sharpening
JPH06237386A (ja) 1993-02-10 1994-08-23 Ricoh Co Ltd 画像処理装置
US5828421A (en) 1994-10-11 1998-10-27 Hitachi America, Ltd. Implementation efficient digital picture-in-picture decoding methods and apparatus
EP0735772A3 (en) * 1995-03-27 1998-04-01 Hewlett-Packard Company Method for selecting JPEG quantization tables for low bandwidth applications
US6381369B1 (en) * 1996-07-17 2002-04-30 Sony Corporation Image coding apparatus, image coding method, image decoding method, image decoding apparatus, image data transmitting method and recording medium
US6473533B1 (en) * 1996-10-25 2002-10-29 Fuji Xerox Co., Ltd. Image encoding apparatus and image decoding apparatus
US6052703A (en) * 1998-05-12 2000-04-18 Oak Technology, Inc. Method and apparatus for determining discrete cosine transforms using matrix multiplication and modified booth encoding
SG75179A1 (en) * 1998-07-14 2000-09-19 Thomson Consumer Electronics System for deriving a decoded reduced-resolution video signal from a coded high-definition video signal
JP2000217112A (ja) * 1999-01-22 2000-08-04 Asahi Optical Co Ltd 画像圧縮伸張装置および画素数増加装置
CN1578159B (zh) * 2000-05-09 2010-05-26 索尼公司 数据处理装置和方法

Also Published As

Publication number Publication date
JP4515534B2 (ja) 2010-08-04
CA2470346A1 (en) 2003-07-17
KR100964066B1 (ko) 2010-06-16
KR20040070303A (ko) 2004-08-06
WO2003058972A9 (en) 2003-11-13
US7444033B2 (en) 2008-10-28
AU2002356326A8 (en) 2003-07-24
CN100502510C (zh) 2009-06-17
WO2003058972A2 (en) 2003-07-17
WO2003058972A3 (en) 2003-09-04
JP2010081618A (ja) 2010-04-08
CN1613260A (zh) 2005-05-04
CA2470346C (en) 2012-05-01
US20050065988A1 (en) 2005-03-24
EP1461958A2 (en) 2004-09-29
AU2002356326A1 (en) 2003-07-24

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