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GB2179819B - Improvements in video signal processing systems - Google Patents

Improvements in video signal processing systems

Info

Publication number
GB2179819B
GB2179819B GB8620511A GB8620511A GB2179819B GB 2179819 B GB2179819 B GB 2179819B GB 8620511 A GB8620511 A GB 8620511A GB 8620511 A GB8620511 A GB 8620511A GB 2179819 B GB2179819 B GB 2179819B
Authority
GB
United Kingdom
Prior art keywords
signal processing
video signal
processing systems
systems
video
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
Application number
GB8620511A
Other versions
GB8620511D0 (en
GB2179819A (en
Inventor
Robin Alexander Cawley
Paul Roderick Noel Kellar
Ian Malcolm Stewart
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.)
Quantel Ltd
Original Assignee
Quantel 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 Quantel Ltd filed Critical Quantel Ltd
Publication of GB8620511D0 publication Critical patent/GB8620511D0/en
Publication of GB2179819A publication Critical patent/GB2179819A/en
Application granted granted Critical
Publication of GB2179819B publication Critical patent/GB2179819B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06T3/4007—Scaling of whole images or parts thereof, e.g. expanding or contracting based on interpolation, e.g. bilinear interpolation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Television Signal Processing For Recording (AREA)
  • Television Systems (AREA)
GB8620511A 1985-08-30 1986-08-22 Improvements in video signal processing systems Expired GB2179819B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858521563A GB8521563D0 (en) 1985-08-30 1985-08-30 Video signal processing systems

Publications (3)

Publication Number Publication Date
GB8620511D0 GB8620511D0 (en) 1986-10-01
GB2179819A GB2179819A (en) 1987-03-11
GB2179819B true GB2179819B (en) 1989-08-31

Family

ID=10584465

Family Applications (2)

Application Number Title Priority Date Filing Date
GB858521563A Pending GB8521563D0 (en) 1985-08-30 1985-08-30 Video signal processing systems
GB8620511A Expired GB2179819B (en) 1985-08-30 1986-08-22 Improvements in video signal processing systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB858521563A Pending GB8521563D0 (en) 1985-08-30 1985-08-30 Video signal processing systems

Country Status (1)

Country Link
GB (2) GB8521563D0 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262965A (en) * 1988-10-31 1993-11-16 Bts-Broadcast Television Systems, Inc. System and method for high speed computer graphics image computation using a parallel connected, asynchronous multiprocessor ring coupled to a synchronous special purpose video processing ring
GB8910380D0 (en) * 1989-05-05 1989-06-21 Quantel Ltd Video processing
GB2266037B (en) * 1992-03-13 1996-02-14 Quantel Ltd An electronic video processing system
GB2272126A (en) * 1992-10-28 1994-05-04 Quantel Ltd Image processing system in which a high resolution image is stored as a plurality of low resolution images.
US5982364A (en) * 1993-03-12 1999-11-09 Quantel, Ltd. Video processing system including frame position indicators
GB2306750B (en) * 1995-10-23 1999-11-10 Quantel Ltd An audio editing system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2047042A (en) * 1979-03-22 1980-11-19 Micro Consultants Ltd Digital storage and processing of picture signals
GB2156627A (en) * 1984-03-29 1985-10-09 Quantel Ltd Improvements relating to video processing or viewing systems

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8332639D0 (en) * 1983-12-07 1984-01-11 Atomic Energy Authority Uk Steel:ceramic seals

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2047042A (en) * 1979-03-22 1980-11-19 Micro Consultants Ltd Digital storage and processing of picture signals
GB2156627A (en) * 1984-03-29 1985-10-09 Quantel Ltd Improvements relating to video processing or viewing systems

Also Published As

Publication number Publication date
GB8521563D0 (en) 1985-10-02
GB8620511D0 (en) 1986-10-01
GB2179819A (en) 1987-03-11

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20060821