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Genetic Programming : An Introduction
Imagine a world in which computers program other computers based on strategies borrowed from biology and natural selection. The book explores such fascinating possibilities thanks to AI!
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Visual avoidance

The bit about AIBO bumping into a chair leg was amusing. Actually I think there are very few mobile robots which can avoid such collisions. Most robots use active methods for obstacle detection such as infrared, ultrasonic or laser where the obstacle has to be directly in the line of sight of the sensor to be detected, so thin objects such as chair legs are often missed.

Probably the most reliable way to avoid such collisions would be to have a pair of cameras on the robot and do a simple disparity calculation. Subtracting one image from another gives a disparity image. Pass the result through a threshold and then calculate a rough distance and horizontal offset which can be used to steer the robot away.

- Bob

136 posts.
Tuesday 18 June, 16:38
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