US6020932A
Expired / Lapsed
US
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Video signal processing device and its method
Assignee: Sony Corp
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Filing: 1997-11-10
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Granted: 2000-02-01
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Expires: 2017-11-10
Abstract
Abstract Since the corner detection means (7, 9) to detect each position of the blue board area from video signal, the conversion address generation means (11) to generate the conversion address based on the position information detected and the position information showing each corner position of the image area of video signal to be inserted and the image conversion means (16) to form conversion source video signal based on the conversion address are provided and the source video signal is to be inserted to the video signal, the operator's operation adjustment as the conventional device becomes unnecessary when inserting the source video signal into the prescribed frame of the video signal, and the operation of the operator can be further decreased. Thus, a video signal processing device capable of further decreasing the operator's operation can be realized.
Inventors
- 👤 Masafumi Kurashige
- 👤 Nobuyuki Minami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:30
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/222; H04N5/262; H04N5/272; H04N5/76; H04N5/765; H04N5/2628; H04N9/00; H04N9/64; H04N9/74; H04N9/75
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
104 words
A video signal processing apparatus for mixing a first video signal and a second video signal, comprising: means for detecting a color area of a prescribed color in said first video signal; transforming means for performing a 3-D transformation on said second video signal and on a key signal corresponding to said second video signal to generate a transformed second video signal and a transformed key signal; and means for mixing said first video signal and said transformed second video signal according to said transformed key signal such that said transformed second video signal corresponds to said color area of said first video signal.
Claim 2
Dependent Claim
104 words
A video signal processing apparatus for mixing a first video signal and a second video signal, comprising: means for detecting a color area of a prescribed color in said first video signal; transforming means for performing a 3-D transformation on said second video signal and on a key signal corresponding to said second video signal to generate a transformed second video signal and a transformed key signal; and means for mixing said first video signal and said transformed second video signal according to said transformed key signal such that said transformed second video signal corresponds to said color area of said first video signal.
Claim 3
Dependent Claim
33 words
The video signal processing apparatus according to claim 1, further comprising means for calculating coordinates of corners of said color area and coordinates of corners of an area corresponding to said key signal.
Claim 4
Dependent Claim
49 words
The video signal processing apparatus according to claim 2, wherein said transforming means calculates 3-D transformation parameters and said 3-D transformation is based on said 3-D transformation parameters, said coordinates of corners of said color area and said coordinates of corners of said area corresponding to said key signal.
Claim 5
Dependent Claim
51 words
The video signal processing apparatus according to claim 3, wherein said transforming means includes memory means for storing said second video signal and said key signal and address generation means for generating read addresses based on said 3-D transformation parameters, said read addresses being used for reading from said memory means.
Claim 6
Independent Claim
97 words
A method for mixing a first video signal and a second video signal, comprising the steps of: detecting a color area of a prescribed color in said first video signal; performing a 3-D transformation on said second video signal and on a key signal corresponding to said second video signal to generate a transformed second video signal and a transformed key signal; and mixing said first video signal and said transformed second video signal according to said transformed key signal such that said transformed second video signal corresponds to said color area of said first video signal.
Claim 7
Independent Claim
97 words
A method for mixing a first video signal and a second video signal, comprising the steps of: detecting a color area of a prescribed color in said first video signal; performing a 3-D transformation on said second video signal and on a key signal corresponding to said second video signal to generate a transformed second video signal and a transformed key signal; and mixing said first video signal and said transformed second video signal according to said transformed key signal such that said transformed second video signal corresponds to said color area of said first video signal.
Claim 8
Dependent Claim
31 words
The method according to claim 5, further comprising the step of calculating coordinates of corners of said color area and coordinates of corners of an area corresponding to said key signal.
Claim 9
Dependent Claim
52 words
The method according to claim 6, wherein said step of performing a 3-D transformation includes calculating 3-D transformation parameters, and wherein said 3-D transformation is based on said 3-D transformation parameters, said coordinates of corners of said color area and said coordinates of corners of said area corresponding to said key signal.
Claim 10
Dependent Claim
49 words
The method according to claim 7, wherein said step of performing a 3-D transformation includes storing said second video signal and said key signal in a memory means and generating read addresses based on said 3-D transformation parameters, said read addresses being used for reading from said memory means.
Claim 11
Dependent Claim
178 words
A video signal processing apparatus for mixing a first video signal and a second video signal, comprising: means for receiving said first video signal, said second video signal and a second key signal corresponding to said second video signal; means for generating a target signal indicating a prescribed color area in said first video signal; means for calculating a position of said color area indicated by said target signal and a position of an area indicated by said key signal; means for generating 3-D transformation parameters based on said position of said color area and said position of said area indicated by said key signal; means for performing a 3-D transformation on said second video signal and on said key signal according to said 3-D transformation parameters in order to generate a transformed second video signal and a transformed key signal; and means for mixing said first video signal and said transformed second video signal according to said transformed key signal such that said transformed second video signal corresponds to said color area of said first video signal.
Claim 12
Dependent Claim
178 words
A video signal processing apparatus for mixing a first video signal and a second video signal, comprising: means for receiving said first video signal, said second video signal and a second key signal corresponding to said second video signal; means for generating a target signal indicating a prescribed color area in said first video signal; means for calculating a position of said color area indicated by said target signal and a position of an area indicated by said key signal; means for generating 3-D transformation parameters based on said position of said color area and said position of said area indicated by said key signal; means for performing a 3-D transformation on said second video signal and on said key signal according to said 3-D transformation parameters in order to generate a transformed second video signal and a transformed key signal; and means for mixing said first video signal and said transformed second video signal according to said transformed key signal such that said transformed second video signal corresponds to said color area of said first video signal.
Claim 13
Independent Claim
164 words
A method for mixing a first video signal and a second video signal, comprising the steps of: receiving said first video signal, said second video signal and a key signal corresponding to said second video signal; generating a target signal indicating a prescribed color area in said first video signal; calculating a position of said color area indicated by said target signal and a position of an area indicated by said key signal; generating 3-D transformation parameters based on said position of said color area and said position of said area indicated by said key signal; performing a 3-D transformation on said second video signal and said key signal according to said 3-D transformation parameters in order to generate a transformed second video signal and a transformed key signal; and mixing said first video signal and said transformed second video signal according to said transformed key signal such that said transformed second video signal corresponds to said color area of said first video signal.
Claim 14
Independent Claim
164 words
A method for mixing a first video signal and a second video signal, comprising the steps of: receiving said first video signal, said second video signal and a key signal corresponding to said second video signal; generating a target signal indicating a prescribed color area in said first video signal; calculating a position of said color area indicated by said target signal and a position of an area indicated by said key signal; generating 3-D transformation parameters based on said position of said color area and said position of said area indicated by said key signal; performing a 3-D transformation on said second video signal and said key signal according to said 3-D transformation parameters in order to generate a transformed second video signal and a transformed key signal; and mixing said first video signal and said transformed second video signal according to said transformed key signal such that said transformed second video signal corresponds to said color area of said first video signal.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-01-31 | 2003-08-02 | 2004-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-01-31 | 2007-08-02 | 2008-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-01-31 | 2011-08-02 | 2012-02-01 | $7700.00 | Window Closed / Lapsed |