GB2254750B - Digital video effects system providing anti-aliasing - Google Patents

Digital video effects system providing anti-aliasing

Info

Publication number
GB2254750B
GB2254750B GB9107494A GB9107494A GB2254750B GB 2254750 B GB2254750 B GB 2254750B GB 9107494 A GB9107494 A GB 9107494A GB 9107494 A GB9107494 A GB 9107494A GB 2254750 B GB2254750 B GB 2254750B
Authority
GB
United Kingdom
Prior art keywords
aliasing
digital video
system providing
video effects
providing anti
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 - Lifetime
Application number
GB9107494A
Other versions
GB2254750A (en
GB9107494D0 (en
Inventor
David John Hedley
Stephen Mark Keating
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 Broadcast and Communications Ltd
Sony Europe BV United Kingdom Branch
Original Assignee
Sony Broadcast and Communications Ltd
Sony United Kingdom 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 Sony Broadcast and Communications Ltd, Sony United Kingdom Ltd filed Critical Sony Broadcast and Communications Ltd
Priority to GB9107494A priority Critical patent/GB2254750B/en
Publication of GB9107494D0 publication Critical patent/GB9107494D0/en
Priority to JP4089145A priority patent/JPH05183810A/en
Publication of GB2254750A publication Critical patent/GB2254750A/en
Application granted granted Critical
Publication of GB2254750B publication Critical patent/GB2254750B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04N5/2628—Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation
    • 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
    • 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
    • G06T3/403—Edge-driven scaling; Edge-based scaling
    • 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
    • H04N5/2622—Signal amplitude transition in the zone between image portions, e.g. soft edges

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
GB9107494A 1991-04-09 1991-04-09 Digital video effects system providing anti-aliasing Expired - Lifetime GB2254750B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9107494A GB2254750B (en) 1991-04-09 1991-04-09 Digital video effects system providing anti-aliasing
JP4089145A JPH05183810A (en) 1991-04-09 1992-04-09 Digital vedio effect device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9107494A GB2254750B (en) 1991-04-09 1991-04-09 Digital video effects system providing anti-aliasing

Publications (3)

Publication Number Publication Date
GB9107494D0 GB9107494D0 (en) 1991-05-22
GB2254750A GB2254750A (en) 1992-10-14
GB2254750B true GB2254750B (en) 1995-06-14

Family

ID=10692933

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9107494A Expired - Lifetime GB2254750B (en) 1991-04-09 1991-04-09 Digital video effects system providing anti-aliasing

Country Status (1)

Country Link
GB (1) GB2254750B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6828983B1 (en) * 2000-05-12 2004-12-07 S3 Graphics Co., Ltd. Selective super-sampling/adaptive anti-aliasing of complex 3D data
US6766281B1 (en) 2000-05-12 2004-07-20 S3 Graphics Co., Ltd. Matched texture filter design for rendering multi-rate data samples

Also Published As

Publication number Publication date
GB2254750A (en) 1992-10-14
GB9107494D0 (en) 1991-05-22

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Expiry date: 20110408