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GB2003001A - Improvements in methods and apparatus for coding digital television signals - Google Patents

Improvements in methods and apparatus for coding digital television signals

Info

Publication number
GB2003001A
GB2003001A GB7831779A GB7831779A GB2003001A GB 2003001 A GB2003001 A GB 2003001A GB 7831779 A GB7831779 A GB 7831779A GB 7831779 A GB7831779 A GB 7831779A GB 2003001 A GB2003001 A GB 2003001A
Authority
GB
United Kingdom
Prior art keywords
prediction
coding
methods
previous
television 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.)
Withdrawn
Application number
GB7831779A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB7831779A priority Critical patent/GB2003001A/en
Publication of GB2003001A publication Critical patent/GB2003001A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/04—Colour television systems using pulse code modulation
    • H04N11/042—Codec means
    • H04N11/046—DPCM
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using 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
    • H04N19/50—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Systems (AREA)

Abstract

Methods and Apparatus for coding and decoding digital monochrome or colour television signals are described. Apparatus for coding comprises means (18, 19, 20, 22 and 25) for predicting the values of digital signals representing the luminance (and for colour, chrominance components) of picture elements from the previous element or the corresponding element in the previous frame according to whether motion is detected or not by a motion detector (24 and 45). Coding is carried out by a subtraction circuit (12) which subtracts the prediction from the actual value to provide an error signal and quantizer means (13 to 16) which quantizes the error signal preferably using a different quantizer for each form of prediction. Decoding apparatus comprises prediction means providing prediction signals dependent on the previous element, or the corresponding element in the previous frame and an addition circuit for adding the output of the prediction means to the encoded signal. <IMAGE>
GB7831779A 1977-08-16 1978-08-01 Improvements in methods and apparatus for coding digital television signals Withdrawn GB2003001A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7831779A GB2003001A (en) 1977-08-16 1978-08-01 Improvements in methods and apparatus for coding digital television signals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3437177 1977-08-16
GB7831779A GB2003001A (en) 1977-08-16 1978-08-01 Improvements in methods and apparatus for coding digital television signals

Publications (1)

Publication Number Publication Date
GB2003001A true GB2003001A (en) 1979-02-28

Family

ID=26262262

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7831779A Withdrawn GB2003001A (en) 1977-08-16 1978-08-01 Improvements in methods and apparatus for coding digital television signals

Country Status (1)

Country Link
GB (1) GB2003001A (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022713A1 (en) * 1979-07-09 1981-01-21 Jean Pierre Temime Device for coding and decoding a digital videophone signal
FR2556912A1 (en) * 1983-12-14 1985-06-21 Thomson Csf METHOD OF COMPRESSING DATA RATE SUCCESSIVELY TRANSMITTED BETWEEN A TRANSMITTER AND A TELEVISION RECEIVER AND SYSTEM IMPLEMENTING THE METHOD
FR2562364A1 (en) * 1984-04-03 1985-10-04 Thomson Csf METHOD AND SYSTEM FOR COMPRESSING DIGITAL DATA RATE TRANSMITTED BETWEEN A TRANSMITTER AND A TELEVISION RECEIVER
EP0126295A3 (en) * 1983-04-21 1986-04-30 Siemens Aktiengesellschaft Pulse code modulation transmission system with data reduction, in particular for television signals
EP0137314A3 (en) * 1983-09-06 1986-08-20 Mitsubishi Denki Kabushiki Kaisha Vector quantizer for picture information
EP0193185A1 (en) * 1985-02-28 1986-09-03 Mitsubishi Denki Kabushiki Kaisha Interframe adaptive vector quantization encoding apparatus
EP0097858A3 (en) * 1982-06-11 1986-10-15 Mitsubishi Denki Kabushiki Kaisha Vector quantizer
US4670851A (en) * 1984-01-09 1987-06-02 Mitsubishi Denki Kabushiki Kaisha Vector quantizer
EP0180446A3 (en) * 1984-10-27 1987-07-01 Sony Corporation Methods of detecting motion of television images
EP0306250A1 (en) * 1987-08-28 1989-03-08 BRITISH TELECOMMUNICATIONS public limited company Signal coding
EP0313301A1 (en) * 1987-10-19 1989-04-26 BRITISH TELECOMMUNICATIONS public limited company Signal coding
EP0346751A3 (en) * 1988-06-14 1990-11-14 Siemens Aktiengesellschaft Device for the dpcm coding of television signals
EP0288783A3 (en) * 1987-04-28 1991-03-20 Siemens Aktiengesellschaft Arrangement for the dpcm coding of television signals
AU622422B2 (en) * 1987-10-19 1992-04-09 British Telecommunications Public Limited Company Video coder
GB2213347B (en) * 1987-12-30 1992-07-22 British Broadcasting Corp Bandwidth reduction for the transmission of television signals
WO1992022986A1 (en) * 1991-06-13 1992-12-23 Intel Corporation Method for encoding a sequence of images of a digital motion video signal
US5265180A (en) * 1991-06-13 1993-11-23 Intel Corporation Method of encoding a sequence of images of a digital motion video signal
EP0537958A3 (en) * 1991-10-17 1994-03-30 Sony Corp
GB2500712A (en) * 2012-03-30 2013-10-02 Sony Corp An Apparatus and Method for transmitting a disparity map

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022713A1 (en) * 1979-07-09 1981-01-21 Jean Pierre Temime Device for coding and decoding a digital videophone signal
EP0411675A3 (en) * 1982-06-11 1991-04-24 Mitsubishi Denki Kabushiki Kaisha Interframe coding apparatus
EP0097858A3 (en) * 1982-06-11 1986-10-15 Mitsubishi Denki Kabushiki Kaisha Vector quantizer
EP0126295A3 (en) * 1983-04-21 1986-04-30 Siemens Aktiengesellschaft Pulse code modulation transmission system with data reduction, in particular for television signals
EP0137314A3 (en) * 1983-09-06 1986-08-20 Mitsubishi Denki Kabushiki Kaisha Vector quantizer for picture information
EP0451879A3 (en) * 1983-09-06 1992-12-23 Mitsubishi Denki Kabushiki Kaisha Vector quantizer
FR2556912A1 (en) * 1983-12-14 1985-06-21 Thomson Csf METHOD OF COMPRESSING DATA RATE SUCCESSIVELY TRANSMITTED BETWEEN A TRANSMITTER AND A TELEVISION RECEIVER AND SYSTEM IMPLEMENTING THE METHOD
EP0148063A1 (en) * 1983-12-14 1985-07-10 Thomson-Csf Process for compressing the rate of data which are successively transmitted between a television emitter and a television receiver, and system for realizing the process
US4670851A (en) * 1984-01-09 1987-06-02 Mitsubishi Denki Kabushiki Kaisha Vector quantizer
EP0165081A1 (en) * 1984-04-03 1985-12-18 Thomson-Csf Method and system for reducing the flow of digital data transmitted between a television transmitter and receiver
US4679079A (en) * 1984-04-03 1987-07-07 Thomson Video Equipment Method and system for bit-rate compression of digital data transmitted between a television transmitter and a television receiver
FR2562364A1 (en) * 1984-04-03 1985-10-04 Thomson Csf METHOD AND SYSTEM FOR COMPRESSING DIGITAL DATA RATE TRANSMITTED BETWEEN A TRANSMITTER AND A TELEVISION RECEIVER
EP0180446A3 (en) * 1984-10-27 1987-07-01 Sony Corporation Methods of detecting motion of television images
US4710812A (en) * 1985-02-28 1987-12-01 Mitsubishi Denki Kabushiki Kaisha Interframe adaptive vector quantization encoding apparatus and video encoding transmission apparatus
EP0193185A1 (en) * 1985-02-28 1986-09-03 Mitsubishi Denki Kabushiki Kaisha Interframe adaptive vector quantization encoding apparatus
EP0288783A3 (en) * 1987-04-28 1991-03-20 Siemens Aktiengesellschaft Arrangement for the dpcm coding of television signals
WO1989002206A1 (en) * 1987-08-28 1989-03-09 British Telecommunications Public Limited Company Signal coding
EP0306250A1 (en) * 1987-08-28 1989-03-08 BRITISH TELECOMMUNICATIONS public limited company Signal coding
WO1989004101A1 (en) * 1987-10-19 1989-05-05 British Telecommunications Public Limited Company Signal coding
EP0313301A1 (en) * 1987-10-19 1989-04-26 BRITISH TELECOMMUNICATIONS public limited company Signal coding
AU622422B2 (en) * 1987-10-19 1992-04-09 British Telecommunications Public Limited Company Video coder
GB2213347B (en) * 1987-12-30 1992-07-22 British Broadcasting Corp Bandwidth reduction for the transmission of television signals
EP0346751A3 (en) * 1988-06-14 1990-11-14 Siemens Aktiengesellschaft Device for the dpcm coding of television signals
WO1992022986A1 (en) * 1991-06-13 1992-12-23 Intel Corporation Method for encoding a sequence of images of a digital motion video signal
US5265180A (en) * 1991-06-13 1993-11-23 Intel Corporation Method of encoding a sequence of images of a digital motion video signal
EP0537958A3 (en) * 1991-10-17 1994-03-30 Sony Corp
US5351083A (en) * 1991-10-17 1994-09-27 Sony Corporation Picture encoding and/or decoding system
GB2500712A (en) * 2012-03-30 2013-10-02 Sony Corp An Apparatus and Method for transmitting a disparity map
US9319656B2 (en) 2012-03-30 2016-04-19 Sony Corporation Apparatus and method for processing 3D video data

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)