Page 99 - Concise Encyclopedia of Robotics

EDGE DETECTION E
Edge detection is to the ability of a robotic vision system to locate bound-
aries. It also refers to a robot’s knowledge of what to do with respect to
those boundaries.
A robot car, for example, uses edge detection to see the edges of a road,
and uses the data to keep itself on the road. However, it also needs to stay a
certain distance from the right-hand edge of the pavement, so that it does
not cross over into the lane of oncoming traffic. It must stay off the road

Sky

Grass

Road
shoulder

Blacktop

Center
line

Vision
frame

Edge detection

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