AU5442890A - Signal-processing system for digital signals - Google Patents

Signal-processing system for digital signals

Info

Publication number
AU5442890A
AU5442890A AU54428/90A AU5442890A AU5442890A AU 5442890 A AU5442890 A AU 5442890A AU 54428/90 A AU54428/90 A AU 54428/90A AU 5442890 A AU5442890 A AU 5442890A AU 5442890 A AU5442890 A AU 5442890A
Authority
AU
Australia
Prior art keywords
blocks
signal
processing system
signals
digital signals
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.)
Abandoned
Application number
AU54428/90A
Inventor
Heinz-Werner Keesen
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.)
Deutsche Thomson Brandt GmbH
Original Assignee
Deutsche Thomson Brandt GmbH
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 Deutsche Thomson Brandt GmbH filed Critical Deutsche Thomson Brandt GmbH
Publication of AU5442890A publication Critical patent/AU5442890A/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • 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
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/527—Global motion vector 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/98—Adaptive-dynamic-range coding [ADRC]

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Communication Control (AREA)

Abstract

The signals are processed in blocks. When signals are coded and decoded in blocks, the limits of the blocks may be visible or audible during reproduction of certain picture or audio signals, causing interference. By post-filtering (471, 472, 473) transformed, quantized and inversely transformed signal scanning values in the coder, or transformed and inversely transformed signal scanning values in the decoder, the visibility or audibility of signal jumps at the limits of blocks can be reduced.
AU54428/90A 1989-04-29 1990-04-21 Signal-processing system for digital signals Abandoned AU5442890A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3914267A DE3914267A1 (en) 1989-04-29 1989-04-29 SIGNAL PROCESSING SYSTEM FOR DIGITAL SIGNALS
DE3914267 1989-04-29

Publications (1)

Publication Number Publication Date
AU5442890A true AU5442890A (en) 1990-11-29

Family

ID=6379794

Family Applications (1)

Application Number Title Priority Date Filing Date
AU54428/90A Abandoned AU5442890A (en) 1989-04-29 1990-04-21 Signal-processing system for digital signals

Country Status (6)

Country Link
EP (1) EP0470110B1 (en)
JP (1) JP3021640B2 (en)
AT (1) ATE112123T1 (en)
AU (1) AU5442890A (en)
DE (2) DE3914267A1 (en)
WO (1) WO1990013971A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2984626A (en) * 1956-10-16 1961-05-16 Union Carbide Corp Production of metal halide ingots
US4541012A (en) * 1982-01-04 1985-09-10 Compression Labs, Inc. Video bandwidth reduction system employing interframe block differencing and transform domain coding
ATE51991T1 (en) * 1984-05-21 1990-04-15 Siemens Ag METHOD OF TRANSMISSION OF TELEVISION PICTURES.
DE3629434C2 (en) * 1986-08-29 1994-07-28 Karlheinz Dipl Ing Brandenburg Digital coding method
DE3642492A1 (en) * 1986-12-12 1988-06-23 Bosch Gmbh Robert METHOD AND CIRCUIT ARRANGEMENT FOR REDUCING THE DATA RATE OF DIGITALIZED IMAGES
DE3709094A1 (en) * 1987-03-23 1988-10-06 Ant Nachrichtentech METHOD FOR CODING IMAGE SIGNALS
DE3727874A1 (en) * 1987-08-21 1989-03-02 Thomson Brandt Gmbh METHOD AND CIRCUIT FOR IMPROVING THE RESOLUTION OF DIGITAL SIGNALS
GB2210229B (en) * 1987-09-24 1991-11-20 Matsushita Electric Works Ltd Picture encoding system

Also Published As

Publication number Publication date
EP0470110A1 (en) 1992-02-12
DE3914267A1 (en) 1990-10-31
WO1990013971A1 (en) 1990-11-15
JPH04504791A (en) 1992-08-20
DE59007278D1 (en) 1994-10-27
JP3021640B2 (en) 2000-03-15
ATE112123T1 (en) 1994-10-15
EP0470110B1 (en) 1994-09-21

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