Apparatus and methods for combining video signals representing i

Details Apparatus and methods for combining video signals representing i Apparatus and methods for combining video signals representing i

1993-10-22

1995-03-21

Groody, James J.

Television

Image signal processing circuitry specific to television

Special effects

348591, H04N 5262

Patent

active

054000807

ABSTRACT:
At least three video signals including at least one video signal which is given special effects are combined into a single video signal. Each of the three video signals contains a key signal and depth information. Two video signals closer to a viewpoint for images represented by the video signals are selected from the at least three video signals, per pixel, by comparing the depth information contained in the video signals per pixel to detect two pieces of depth information corresponding to two pixels closer to said viewpoint, and holding the two pixels corresponding to the detected two pieces of depth information based on the detected two pieces of depth information. Then, the selected video signals are weighted and mixed based on the key signals and depth information thereof per pixel.

REFERENCES:
patent: 3764732 (1972-06-01), Macheboeuf
patent: 4360831 (1980-11-01), Kellar
patent: 4774583 (1988-09-01), Kellar et al.
patent: 5121210 (1992-06-01), Hirayama
patent: 5280568 (1994-01-01), Osata

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