Machine vision methods for determining characteristics of three-dimensional objects
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United States of America Patent
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Nov 2, 1999
Grant Date -
N/A
app pub date -
Apr 1, 1996
filing date -
Apr 1, 1996
priority date (Note) -
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Abstract
A method for determining spatial characteristics of a selected object in an image that has pixel values representing heights of corresponding portions thereof is characterized by the steps of finding one or more heights of portions of the object, determining a volume of the object at and above (or below) a selected height by summing a count representing a cross-sectional area of the object at that height with a count representing a volume of the object at a greater (or lesser) height, and outputting the volume so determined. A related method determines a cross-sectional area of an object in such a 'height' image by finding one or more heights of portions of the object and summing a count of pixels in the object at the selected height with a count representing a cross-sectional area of the object above that height.
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