Image processing apparatus

Details Image processing apparatus Image processing apparatus

1998-06-02

2000-12-26

Brier, Jeffery

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

G09G 537, G06T 500

Patent

active

06166717&

ABSTRACT:
An information processing apparatus includes a rendering Y-coordinate generating circuit, a span start point generating circuit, a span end point generating circuit, a sub-span start point generating circuit, a sub-span end point generating circuit, a leftmost sub-span start point generating circuit, a rightmost sub-span end point generating circuit, a rendering X-coordinate generating circuit, a sub-span start point comparison circuit, a sub-span end point comparison circuit, a sub-span difference calculating circuit, and a sub-span adding circuit. With this arrangement, sub-spans in a pixel with the coordinates XD and YD are concurrently processed to obtain the area of the overlapping portion between the pixel and a triangular region.

REFERENCES:
patent: 5343558 (1994-08-01), Akeley
patent: 5528737 (1996-06-01), Sfarti

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