GB2003001A - Improvements in methods and apparatus for coding digital television signals - Google Patents
Improvements in methods and apparatus for coding digital television signalsInfo
- 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- Withdrawn
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>
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)
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 |
EP0097858A2 (en) * | 1982-06-11 | 1984-01-11 | Mitsubishi Denki Kabushiki Kaisha | Vector quantizer |
EP0126295A2 (en) * | 1983-04-21 | 1984-11-28 | Siemens Aktiengesellschaft | Pulse code modulation transmission system with data reduction, in particular for television signals |
EP0137314A2 (en) * | 1983-09-06 | 1985-04-17 | Mitsubishi Denki Kabushiki Kaisha | Vector quantizer for picture information |
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 |
EP0180446A2 (en) * | 1984-10-27 | 1986-05-07 | Sony Corporation | Methods of detecting motion of television images |
EP0193185A1 (en) * | 1985-02-28 | 1986-09-03 | Mitsubishi Denki Kabushiki Kaisha | Interframe adaptive vector quantization encoding apparatus |
US4670851A (en) * | 1984-01-09 | 1987-06-02 | Mitsubishi Denki Kabushiki Kaisha | Vector quantizer |
EP0288783A2 (en) * | 1987-04-28 | 1988-11-02 | Siemens Aktiengesellschaft | Arrangement for the DPCM coding of television signals |
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 |
EP0346751A2 (en) * | 1988-06-14 | 1989-12-20 | Siemens Aktiengesellschaft | Device 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 |
EP0537958A2 (en) * | 1991-10-17 | 1993-04-21 | Sony Corporation | Picture encoding and/or decoding |
US5265180A (en) * | 1991-06-13 | 1993-11-23 | Intel Corporation | Method of encoding a sequence of images of a digital motion video signal |
GB2500712A (en) * | 2012-03-30 | 2013-10-02 | Sony Corp | An Apparatus and Method for transmitting a disparity map |
-
1978
- 1978-08-01 GB GB7831779A patent/GB2003001A/en not_active Withdrawn
Cited By (38)
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 |
EP0411675A2 (en) * | 1982-06-11 | 1991-02-06 | Mitsubishi Denki Kabushiki Kaisha | Interframe coding apparatus |
EP0097858A2 (en) * | 1982-06-11 | 1984-01-11 | Mitsubishi Denki Kabushiki Kaisha | Vector quantizer |
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 |
EP0126295A2 (en) * | 1983-04-21 | 1984-11-28 | 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 |
EP0137314A2 (en) * | 1983-09-06 | 1985-04-17 | Mitsubishi Denki Kabushiki Kaisha | Vector quantizer for picture information |
EP0451879A2 (en) * | 1983-09-06 | 1991-10-16 | Mitsubishi Denki Kabushiki Kaisha | Vector quantizer |
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 |
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 |
US4670851A (en) * | 1984-01-09 | 1987-06-02 | Mitsubishi Denki Kabushiki Kaisha | Vector quantizer |
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 |
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 |
EP0180446A2 (en) * | 1984-10-27 | 1986-05-07 | Sony Corporation | Methods of detecting motion of television images |
EP0180446A3 (en) * | 1984-10-27 | 1987-07-01 | Sony Corporation | Methods of detecting motion of television images |
EP0193185A1 (en) * | 1985-02-28 | 1986-09-03 | Mitsubishi Denki Kabushiki Kaisha | Interframe adaptive vector quantization encoding apparatus |
US4710812A (en) * | 1985-02-28 | 1987-12-01 | Mitsubishi Denki Kabushiki Kaisha | Interframe adaptive vector quantization encoding apparatus and video encoding transmission apparatus |
EP0288783A2 (en) * | 1987-04-28 | 1988-11-02 | Siemens Aktiengesellschaft | Arrangement 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 |
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 |
EP0313301A1 (en) * | 1987-10-19 | 1989-04-26 | BRITISH TELECOMMUNICATIONS public limited company | Signal coding |
WO1989004101A1 (en) * | 1987-10-19 | 1989-05-05 | 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 |
EP0346751A2 (en) * | 1988-06-14 | 1989-12-20 | 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 |
EP0537958A2 (en) * | 1991-10-17 | 1993-04-21 | Sony Corporation | Picture encoding and/or decoding |
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) |