Abstract:

In order to meet the demands of automobile assisting parking and astern running system,we propose a binocular vision 3D coordinate extraction system based on embedded processors ARM11 and Linux OS. We first provide the designs for both hardware and software, and then thoroughly describe the algorithm for coordinate extraction. On the fabricated testing system, experiments were carried out for testing the algorithm performances and the relationship between measurement errors and distance. The results exhibit that the measurement errors are less than 1.2% in the distance between 0.5 m and 1.6 m. The size, cost and power consumption of the system based on embedded processors are much smaller than those in the system based on PC.The implement of this system somehow promotes the substantiation of binocular vision technique.

Key words: embedded, 3D coordinate extraction, binocular vision