Vision system for distinguishing touching parts
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United States of America Patent
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Oct 24, 1989
Issued Date -
N/A
app pub date -
Nov 20, 1987
filing date -
Jun 4, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A practical vision system for controlling the positioning of a robot arm recognizes and locates objects. The vision system processes binary images, but recognizes objects based on boundary features such as lines, arcs, corners and holes instead of 'blob features' such as area and best-fit ellipse. Consequently, the vision system can process two common situations not handled by blob analysis: merged blobs due to touching or overlapping parts and incomplete blobs due to low image contrast. The microprocessor-based system is interfaced to the robot system and can recognize up to five parts per second.
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