Process for representing views of an object
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United States of America Patent
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Sep 14, 1993
Grant Date -
N/A
app pub date -
Oct 17, 1989
filing date -
Apr 17, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The segmented object is represented in terms of a numerical volume by calculating the gradients of the physical quantities loaded into the volume elements of this numerical volume. The gradients are shown to be perpendicular to the true surface of the object to be segmented and that they determine a surface more precisely than a treatment carried out on the surface of the segmented object. To eliminate the artefacts of a contour line which are visible in particular in the regions of low relief, the gradients assigned to volume elements of the surface of the object are weighted with respect to gradients assigned to volume elements adjacent to these volume elements by apparent facets of this segmented object.
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