A Visual Circuit for Lateral Motion Detection

Kai-Tai Song, Sung-Chih Shen
2007 IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society  
This paper presents a design and implementation of an intelligent vision chip for detecting lateral object motion. We propose a correlation interconnection scheme for the outputs of a photocircuit array to infer motion direction of nearby objects as well as the tendency of approaching of a moving object. This design facilitates lateral obstacle avoidance of an intelligent vehicle. The circuit has been successfully simulated by Hspice and integrated into a sensor chip of 20x20 pixel array. The
more » ... sion chip has been fabricated with TSMC 0.35 ,um 2P4M CMOS process. The chip area is 2.48 mm x2.42 mm. The function of photocells, registers and correlation in extreme cases are verified.
doi:10.1109/iecon.2007.4460288 fatcat:kzj7scjbkrhpdjtecog44ax64q