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发明名称
Deriving matte control signal in a chroma-keying system
摘要
申请公布号
GB2336054(A)
申请公布日期
1999.10.06
申请号
GB19980006975
申请日期
1998.04.01
申请人
* DISCREET LOGIC INC
发明人
DANIEL * PETTIGREW
分类号
G01J3/50;H04N9/75;(IPC1-7):H04N9/75;H04N5/275
主分类号
G01J3/50
代理机构
代理人
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