发明名称 IMAGE SIGNAL COMPOSITING APPARATUS AND METHOD
摘要 PROBLEM TO BE SOLVED: To realize an image signal compositing apparatus that can obtain a smooth edge and crossing area. SOLUTION: The image signal composite apparatus is provided with a circuit 10 that generates a priority signal; circuits 211 to 213 that generate a complementary signal of each key signal; circuits 214 to 216 that generate the complementary signal of each priority signal; a circuit 30 that multiplies all complementary key signals and outputs a complementary signal of the product signal as a composite key signal; a circuit 40 that applies reciprocal arithmetic operation to the composite key signal to generate a composite key reciprocal signal; circuits 51 to 53 that multiply a sum signal of the complementary priority and the complementary key signal of the image signal of a weighting object with a video signal and a key signal of the image signal and each priority signal, with respect to the image signal to apply shaping processing to each video signal; a circuit 60 that sums the video signals subjected to the shaping processing; and a circuit 70 that multiplies the summed video signal with the composite key reciprocal signal to generate a composite image signal, so as to composite the three image signals or more, at the same time.
申请公布号 JP2003060987(A) 申请公布日期 2003.02.28
申请号 JP20020179700 申请日期 2002.06.20
申请人 SONY CORP 发明人 MORIWAKE KATSUAKI
分类号 G06T3/00;H04N5/262;H04N5/265;(IPC1-7):H04N5/262 主分类号 G06T3/00
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