Computer graphics processing and selective visual display system – Display peripheral interface input device – Light pen for fluid matrix display panel
Patent
1995-08-07
1996-11-05
Brier, Jeffrey
Computer graphics processing and selective visual display system
Display peripheral interface input device
Light pen for fluid matrix display panel
395102, 358451, G09G 526
Patent
active
055722342
ABSTRACT:
A method for converting from one display element density to a different display element density. In order to convert from one pixel density to a different density, each pixel in a particular position in a first pixel density must be associated with a pixel or pixels in a corresponding position in a different pixel density. The present invention tracks the cumulative pixel position error introduced for the conversion of each pixel from one input density to a different output density. By tracking a cumulative pixel conversion error, each subsequent pixel conversion is optimized based on the conversion of all prior pixels. In this manner, a more accurate pixel density conversion may be achieved regardless of mid-row density variations. Specifically, the present invention achieves an accuracy of a pixel position error of no more than one-half the distance between the centers of two adjacent output density pixels. The present invention performs this pixel density conversion with low computational overhead, by allowing the output pixel row to be built sequentially as the input pixel row is processed.
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Brier Jeffrey
Intel Corporation
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