CN1179568C - 数字视频图象的1/4尺寸实时解码 - Google Patents

数字视频图象的1/4尺寸实时解码 Download PDF

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Publication number
CN1179568C
CN1179568C CNB981269508A CN98126950A CN1179568C CN 1179568 C CN1179568 C CN 1179568C CN B981269508 A CNB981269508 A CN B981269508A CN 98126950 A CN98126950 A CN 98126950A CN 1179568 C CN1179568 C CN 1179568C
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CN
China
Prior art keywords
phase
discrete cosine
cosine transform
cos
prime
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.)
Expired - Fee Related
Application number
CNB981269508A
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English (en)
Chinese (zh)
Other versions
CN1230078A (zh
Inventor
张静方
史
柳原尚史
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.)
Sony Electronics Inc
Original Assignee
Sony Electronics Inc
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
Priority claimed from US08/970,338 external-priority patent/US6104838A/en
Priority claimed from US08/970,880 external-priority patent/US6111989A/en
Application filed by Sony Electronics Inc filed Critical Sony Electronics Inc
Publication of CN1230078A publication Critical patent/CN1230078A/zh
Application granted granted Critical
Publication of CN1179568C publication Critical patent/CN1179568C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/147—Discrete orthonormal transforms, e.g. discrete cosine transform, discrete sine transform, and variations therefrom, e.g. modified discrete cosine transform, integer transforms approximating the discrete cosine transform
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G06T3/4084—Scaling of whole images or parts thereof, e.g. expanding or contracting in the transform domain, e.g. fast Fourier transform [FFT] domain scaling
    • 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
    • H04N19/18—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 set of transform coefficients
    • 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
    • H04N19/48—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using compressed domain processing techniques other than decoding, e.g. modification of transform coefficients, variable length coding [VLC] data or run-length data
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
    • 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)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Mathematical Analysis (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Software Systems (AREA)
  • Databases & Information Systems (AREA)
  • Algebra (AREA)
  • General Engineering & Computer Science (AREA)
  • Discrete 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)
  • Complex Calculations (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Processing (AREA)
CNB981269508A 1997-11-14 1998-11-14 数字视频图象的1/4尺寸实时解码 Expired - Fee Related CN1179568C (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/970,338 US6104838A (en) 1997-11-14 1997-11-14 1/16 size real time decoding of digital video
US08/970338 1997-11-14
US08/970,880 US6111989A (en) 1997-11-14 1997-11-14 1/4 size real time decoding of digital video
US08/970880 1997-11-14

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN 200410043414 Division CN1290338C (zh) 1997-11-14 1998-11-14 数字视频图象的1/4尺寸实时解码

Publications (2)

Publication Number Publication Date
CN1230078A CN1230078A (zh) 1999-09-29
CN1179568C true CN1179568C (zh) 2004-12-08

Family

ID=27130535

Family Applications (2)

Application Number Title Priority Date Filing Date
CNB981269508A Expired - Fee Related CN1179568C (zh) 1997-11-14 1998-11-14 数字视频图象的1/4尺寸实时解码
CN 200410043414 Expired - Fee Related CN1290338C (zh) 1997-11-14 1998-11-14 数字视频图象的1/4尺寸实时解码

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN 200410043414 Expired - Fee Related CN1290338C (zh) 1997-11-14 1998-11-14 数字视频图象的1/4尺寸实时解码

Country Status (4)

Country Link
EP (2) EP0917105A3 (https=)
JP (2) JP4510946B2 (https=)
CN (2) CN1179568C (https=)
TW (1) TW423240B (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2579502C (en) 2004-09-15 2014-05-27 Electronics And Telecommunications Research Institute Digital television transmission and receiving apparatus and method using 1/4 rate coded robust data
US7930869B2 (en) 2007-12-21 2011-04-26 Pitney Bowes Inc. Inserter control method
FR3050598B1 (fr) * 2016-04-26 2020-11-06 Bcom Procede de decodage d'une image numerique, procede de codage, dispositifs, et programmes d'ordinateurs associes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262854A (en) * 1992-02-21 1993-11-16 Rca Thomson Licensing Corporation Lower resolution HDTV receivers
US5614952A (en) * 1994-10-11 1997-03-25 Hitachi America, Ltd. Digital video decoder for decoding digital high definition and/or digital standard definition television signals
US5708732A (en) * 1996-03-06 1998-01-13 Hewlett-Packard Company Fast DCT domain downsampling and inverse motion compensation
JPH10145788A (ja) * 1996-11-11 1998-05-29 Sumitomo Electric Ind Ltd 映像再生装置
US6175592B1 (en) * 1997-03-12 2001-01-16 Matsushita Electric Industrial Co., Ltd. Frequency domain filtering for down conversion of a DCT encoded picture

Also Published As

Publication number Publication date
JP4511451B2 (ja) 2010-07-28
JP4510946B2 (ja) 2010-07-28
CN1290338C (zh) 2006-12-13
EP2284793A1 (en) 2011-02-16
CN1230078A (zh) 1999-09-29
JPH11234672A (ja) 1999-08-27
TW423240B (en) 2001-02-21
EP0917105A3 (en) 2003-11-19
JP2006115536A (ja) 2006-04-27
CN1547396A (zh) 2004-11-17
EP0917105A2 (en) 1999-05-19

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PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20041208

Termination date: 20151114