Map image processing apparatus and method for forming...

Details Map image processing apparatus and method for forming... Map image processing apparatus and method for forming...

2005-05-31

2005-05-31

Brier, Jeffery (Department: 2672)

Computer graphics processing and selective visual display system

Computer graphics processing

Graphic manipulation

C345S684000

Reexamination Certificate

active

06900817

ABSTRACT:
A map image processing method and apparatus produces a birds-eye view in real time from a two-dimensional map image. In this method and apparatus, a map image having a wider area than a display area displayed on the display device is drawn and stored. When a scroll display is instructed, a part of the two-dimensional map image is sequentially read, and a display processing operation is sequentially executed. A birds-eye view is obtained by processing the two-dimensional map image. A display processing operation is applied to the birds-eye view. Since the birds-eye view is formed by simply processing the two-dimensional map image, the birds-eye view image can be produced in high speeds and can be scrolled in a smooth display mode.

REFERENCES:
patent: 5964810 (1999-10-01), Hirano et al.
patent: 6169552 (2001-01-01), Endo et al.
patent: 6346942 (2002-02-01), Endo et al.
patent: A-8-160852 (1996-06-01), None
patent: A-10-222059 (1998-08-01), None
patent: A-2001-343243 (2001-12-01), None

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