发明名称 |
METHOD AND APPARATUS FOR COMBINING VIDEO SIGNALS TO ONE COMPREHENSIVE VIDEO SIGNAL |
摘要 |
Method and apparatus for combining a first video signal and a second video signal. The method comprising the act of replacing data in the second video signal with corresponding, in respect of a position within an image, data from the first video signal when said data in the second video signal represent a predefined repetitive pattern. The apparatus comprising a first input for input of the first video signal; a second input for input of the second video signal; an output for output of a third video signal; a keying-pattern detector connected to said second input for detecting a predefined repetitive pattern, wherein said keying-pattern detector comprises a means for receiving and/or storing a representation of the predefined repetitive pattern, and an output that is arranged to provide a signal indicating whether said predefined repetitive pattern is detected or not; and a video switch connected to said first input, said second input, said output and said output of the keying-pattern detector for continuously selecting a video signal from one of the first and second input to be represented in a third video signal, said selection being controlled by a signal from the output of the keying-pattern detector. |
申请公布号 |
WO2004071063(A3) |
申请公布日期 |
2004.11.11 |
申请号 |
WO2004SE00118 |
申请日期 |
2004.01.30 |
申请人 |
AXIS AB;LUNDBERG, STEFAN;DAHLGREN, GUNNAR |
发明人 |
LUNDBERG, STEFAN;DAHLGREN, GUNNAR |
分类号 |
H04N5/272;H04N5/275;H04N9/74;H04N9/76 |
主分类号 |
H04N5/272 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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