Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Patent
1995-07-28
1998-08-04
Nguyen, Phu K.
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
345431, 345514, 345443, 345432, G06T 1510
Patent
active
057901287
ABSTRACT:
A method for encoding of words of an image memory designed to be read periodically to refresh an image formed on the screen by set of pixels wherein the image includes surfaces having a uniform color and demarcated by a contour having a median line and the neighborhood of the median line including, on either side of this line, the pixels neighboring a pixel of the median line. The image further contains filar plotting features with one pixel of the screen being in a one to one correspondence with the memory cell containing a word and the reading of the current cell including at least a part of the information needed to write the corresponding pixel on the screen. The method involves recoding memory words in relation to the contours including not only the memory words related to the median lines of the contours but also the memory words related to the neighborhood of the contour. The code of each re-coded memory word includes two information bits concerning the circumstances of the writing of the recoded bits. These two bits enable the identification by the combination of four different possible values.
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Filliatre Eric
Pernia Olivier
Chen Jennifer C.
Nguyen Phu K.
Sextant Avionique
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