Television – Image signal processing circuitry specific to television – Special effects
Patent
1993-03-16
1994-10-11
Powell, Mark R.
Television
Image signal processing circuitry specific to television
Special effects
348597, H04N 975
Patent
active
053551745
ABSTRACT:
Inner and outer hexoctahedrons respectively showing complete background and complete background are defined by combining triangular pyramids centered on a background representative color on RGB space. Key value is calculated by changing identification function parameters depending upon which of triangular pyramids constituting the hexoctahedron each pixel of the image belongs to. As a result, an improved foreground image for composite is obtained.
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Imagica Corp.
Powell Mark R.
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