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WO2008126139A1 - 画像データ圧縮装置及び復号装置 - Google Patents

画像データ圧縮装置及び復号装置 Download PDF

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Publication number
WO2008126139A1
WO2008126139A1 PCT/JP2007/000339 JP2007000339W WO2008126139A1 WO 2008126139 A1 WO2008126139 A1 WO 2008126139A1 JP 2007000339 W JP2007000339 W JP 2007000339W WO 2008126139 A1 WO2008126139 A1 WO 2008126139A1
Authority
WO
WIPO (PCT)
Prior art keywords
frequency component
prediction
filter coefficients
image data
high frequency
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2007/000339
Other languages
English (en)
French (fr)
Inventor
Junichi Odagiri
Shigeru Yoshida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to PCT/JP2007/000339 priority Critical patent/WO2008126139A1/ja
Priority to JP2009508693A priority patent/JP4729118B2/ja
Publication of WO2008126139A1 publication Critical patent/WO2008126139A1/ja
Priority to US12/568,099 priority patent/US8306341B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H04N19/635—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets characterised by filter definition or implementation details
    • 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
    • H04N19/10—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
    • H04N19/60—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

Landscapes

  • 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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

　画像データを１次元サブバンド符号化により圧縮する際、まず画像データを1次元サブバンド符号化にしたがった低周波成分と高周波成分に分離してフィルタ係数を算出するとともに、算出した低周波成分と高周波成分に係るフィルタ係数についてスラント変換(SLT)をベースにしたフィルタ係数予測を行う。この場合、算出された現ラインの低周波成分と高周波成分に係る各フィルタ係数の予測を行うためにラインメモリに保持された前ラインで算出された低周波成分と高周波成分に係るフィルタ係数の予測値を参照してフィルタ係数毎に異なる予測手段に切り替えて予測を行う。このような予測方法を採ることにより予測誤差の少ない予測を少ない計算量で実現することができ、１次元サブバンド符号化を採る画像データの圧縮であっても画質および圧縮率を向上させることができる。
PCT/JP2007/000339 2007-03-30 2007-03-30 画像データ圧縮装置及び復号装置 Ceased WO2008126139A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2007/000339 WO2008126139A1 (ja) 2007-03-30 2007-03-30 画像データ圧縮装置及び復号装置
JP2009508693A JP4729118B2 (ja) 2007-03-30 2007-03-30 画像データ圧縮装置及び復号装置
US12/568,099 US8306341B2 (en) 2007-03-30 2009-09-28 Image data compression apparatus and decoding apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/000339 WO2008126139A1 (ja) 2007-03-30 2007-03-30 画像データ圧縮装置及び復号装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/568,099 Continuation US8306341B2 (en) 2007-03-30 2009-09-28 Image data compression apparatus and decoding apparatus

Publications (1)

Publication Number Publication Date
WO2008126139A1 true WO2008126139A1 (ja) 2008-10-23

Family

ID=39863325

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/000339 Ceased WO2008126139A1 (ja) 2007-03-30 2007-03-30 画像データ圧縮装置及び復号装置

Country Status (3)

Country Link
US (1) US8306341B2 (ja)
JP (1) JP4729118B2 (ja)
WO (1) WO2008126139A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012034231A1 (en) * 2010-09-14 2012-03-22 Research In Motion Limited Methods and devices for data compression with adaptive filtering in the transform domain
US9813711B2 (en) * 2012-10-03 2017-11-07 Avago Technologies General Ip (Singapore) Pte. Ltd. Hybrid transform-based compression
US8879858B1 (en) * 2013-10-01 2014-11-04 Gopro, Inc. Multi-channel bit packing engine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5961279A (ja) * 1982-09-29 1984-04-07 Fuji Photo Film Co Ltd 画像信号の適応形量子化方式
JPS63280576A (ja) * 1987-05-12 1988-11-17 Nec Corp 圧縮符号化方法
JP2005218124A (ja) * 1996-05-03 2005-08-11 Ricoh Co Ltd データ圧縮システム
JP2006517065A (ja) * 2003-01-13 2006-07-13 ノキア コーポレイション 限定されたビット数を用いる画像処理
JP2006270392A (ja) * 2005-03-23 2006-10-05 Canon Inc 画像予測符号化装置
WO2007010690A1 (ja) * 2005-07-22 2007-01-25 Mitsubishi Electric Corporation 画像符号化装置、画像復号装置、および画像符号化方法、画像復号方法、画像符号化プログラム、画像復号プログラム、ならびに画像符号化プログラムを記録したコンピュータ読み取り可能な記録媒体、画像復号プログラムを記録したコンピュータ読み取り可能な記録媒体

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69126940T2 (de) * 1990-05-14 1998-02-05 Eastman Kodak Co Blockadaptive lineare prädiktionskodierung mit adaptiver verstärkung und vorspannung
JPH0779251B2 (ja) 1990-05-15 1995-08-23 日本電信電話株式会社 サブバンドフィルタ及びサブバンド符号化方式
JP2933457B2 (ja) * 1993-02-18 1999-08-16 日本電気株式会社 ウェーブレット変換符号化方法
US5748786A (en) * 1994-09-21 1998-05-05 Ricoh Company, Ltd. Apparatus for compression using reversible embedded wavelets
US5881176A (en) * 1994-09-21 1999-03-09 Ricoh Corporation Compression and decompression with wavelet style and binary style including quantization by device-dependent parser
US5777678A (en) * 1995-10-26 1998-07-07 Sony Corporation Predictive sub-band video coding and decoding using motion compensation
US6765963B2 (en) * 2001-01-03 2004-07-20 Nokia Corporation Video decoder architecture and method for using same
WO2008042659A2 (en) * 2006-09-25 2008-04-10 Research Foundation Of The City University Of New York Predictive-transform source coding with subbands

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5961279A (ja) * 1982-09-29 1984-04-07 Fuji Photo Film Co Ltd 画像信号の適応形量子化方式
JPS63280576A (ja) * 1987-05-12 1988-11-17 Nec Corp 圧縮符号化方法
JP2005218124A (ja) * 1996-05-03 2005-08-11 Ricoh Co Ltd データ圧縮システム
JP2006517065A (ja) * 2003-01-13 2006-07-13 ノキア コーポレイション 限定されたビット数を用いる画像処理
JP2006270392A (ja) * 2005-03-23 2006-10-05 Canon Inc 画像予測符号化装置
WO2007010690A1 (ja) * 2005-07-22 2007-01-25 Mitsubishi Electric Corporation 画像符号化装置、画像復号装置、および画像符号化方法、画像復号方法、画像符号化プログラム、画像復号プログラム、ならびに画像符号化プログラムを記録したコンピュータ読み取り可能な記録媒体、画像復号プログラムを記録したコンピュータ読み取り可能な記録媒体

Also Published As

Publication number Publication date
JP4729118B2 (ja) 2011-07-20
US20100080479A1 (en) 2010-04-01
US8306341B2 (en) 2012-11-06
JPWO2008126139A1 (ja) 2010-07-15

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