GB2013448B - Measurement of chroma key area in television systems - Google Patents
Measurement of chroma key area in television systemsInfo
- Publication number
- GB2013448B GB2013448B GB7901961A GB7901961A GB2013448B GB 2013448 B GB2013448 B GB 2013448B GB 7901961 A GB7901961 A GB 7901961A GB 7901961 A GB7901961 A GB 7901961A GB 2013448 B GB2013448 B GB 2013448B
- Authority
- GB
- United Kingdom
- Prior art keywords
- measurement
- key area
- television systems
- chroma key
- chroma
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/74—Circuits for processing colour signals for obtaining special effects
- H04N9/75—Chroma key
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7901961A GB2013448B (en) | 1978-01-30 | 1979-01-19 | Measurement of chroma key area in television systems |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB370278 | 1978-01-30 | ||
GB7901961A GB2013448B (en) | 1978-01-30 | 1979-01-19 | Measurement of chroma key area in television systems |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2013448A GB2013448A (en) | 1979-08-08 |
GB2013448B true GB2013448B (en) | 1983-02-23 |
Family
ID=26238527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7901961A Expired GB2013448B (en) | 1978-01-30 | 1979-01-19 | Measurement of chroma key area in television systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2013448B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4538182A (en) * | 1981-05-11 | 1985-08-27 | Canon Kabushiki Kaisha | Image processing apparatus |
US4463372A (en) * | 1982-03-24 | 1984-07-31 | Ampex Corporation | Spatial transformation system including key signal generator |
GB2305051B (en) * | 1995-09-08 | 2000-06-21 | Orad Hi Tec Systems Ltd | Method and apparatus for automatic electronic replacement of billboards in a video image |
GB2305050A (en) * | 1995-09-08 | 1997-03-26 | Orad Hi Tec Systems Ltd | Determining the position of a television camera for use in a virtual studio employing chroma keying |
JP4320064B2 (en) | 1998-07-10 | 2009-08-26 | 富士通株式会社 | Image processing apparatus and recording medium |
-
1979
- 1979-01-19 GB GB7901961A patent/GB2013448B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2013448A (en) | 1979-08-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |