Display system with line smoothing using pixel micro-zones and c

Details Display system with line smoothing using pixel micro-zones and c Display system with line smoothing using pixel micro-zones and c

1996-12-19

2000-10-10

Zimmerman, Mark K.

Computer graphics processing and selective visual display system

Computer graphics processing

Shape generating

345136, 345149, G06T 1100

Patent

active

061306789

ABSTRACT:
A method and system for generating symbols in real time on a display screen. The method and system can be applied to generating symbols for assisting in aircraft piloting and navigation. For the plotted lines generated on a matrix screen such as a liquid crystal display screen, the visual appearance deteriorates since the eye is sensitive to the steps produced by the matrix array. To improve the appearance, the plotted lines are widened and they are modulated in luminosity and in color. This is done by replacing each point of a theoretical plotted line by a micro-zone of N.times.M points modulated in intensity according to a table of instructed-value coefficients. Coefficients are computed for each point of the widened plotted line on the basis of this table and on the basis of coefficients previously computed for the same points. Rather than recording the computed points in the memory at each time and reading them again in subsequent computations, only the definitively processed points are transmitted to the image memory.

REFERENCES:
patent: 4010446 (1977-03-01), Kawa
patent: 4771471 (1988-09-01), Kitamura
patent: 5016193 (1991-05-01), Stone et al.
patent: 5134503 (1992-07-01), Kimura
patent: 5150105 (1992-09-01), Perbet et al.
patent: 5287451 (1994-02-01), Favot et al.
patent: 5790128 (1998-08-01), Filliatre et al.

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