Digital image compositing system and method

Details Digital image compositing system and method Digital image compositing system and method

H - Electricity

04

N

H04N 5/272 (2006.01) H04N 5/262 (2006.01) G06F 15/20 (1990.01)

Patent

CA 2108258

2108258 9218937 PCTABS00017 A digital image compositing system (20) has background, foreground, key and mask busses (22, 24, 26 and 28). An analog key input (30) is connected to the key and mask busses (26 and 28) through an analog/digital (A/D) converter (32) by crosspoint switches (34). Four digital D1 video signal inputs (36) are connected to the busses (22-24) through additional crosspoint switches (34). The key and mask busses (26) and (28) are respectively connected to frame stores (38) and (40). A key processing toolkit subsystem (42) is connected to the output of the frame stores (38) and (40). A compositor subsystem (44) is connected to the background and foreground busses (22) and (24) and to the output of the key processing toolkit subsystem (42). A D1 program output (46) is connected to the output of the compositor subsystem (44) on program bus (48). A D1 key output (50) is connected to the output of key processing toolkit subsystem (42) on processed key bus (52). A D1 auxiliary output (54) is connected to program bus (48), background bus (22), foreground bus (24), processed key bus (52) and mask bus (28) by crosspoint switches (56).

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