Title :
A Visual Circuit for Lateral Motion Detection
Author :
Song, Kai-Tai ; Shen, Sung-Chih
Author_Institution :
Nat. Chiao Tung Univ., Hsinchu
Abstract :
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 20 times 20 pixel array. The vision chip has been fabricated with TSMC 0.35 mum 2P4M CMOS process. The chip area is 2.48 mm times 2.42 mm . The function of photocells, registers and correlation in extreme cases are verified.
Keywords :
automated highways; collision avoidance; computer vision; digital signal processing chips; image motion analysis; image sensors; CMOS process; intelligent vehicle; intelligent vision chip; lateral motion detection; lateral object motion; obstacle avoidance; photocircuit array; visual circuit; Algorithm design and analysis; CMOS logic circuits; Integrated circuit interconnections; Intelligent sensors; Intelligent vehicles; Motion detection; Object detection; Registers; Sensor arrays; Voltage;
Conference_Titel :
Industrial Electronics Society, 2007. IECON 2007. 33rd Annual Conference of the IEEE
Conference_Location :
Taipei
Print_ISBN :
1-4244-0783-4
DOI :
10.1109/IECON.2007.4460288
