Use bionic microlens array and CMOS image sensor for three-dimensional motion detection.

Autor: Liu, Chung-You, Chuang, Jun-Fu, Yu, Ting-Chieh, Wang, Kerwin
Zdroj: 2012 7th IEEE International Conference on Nano/Micro Engineered & Molecular Systems (NEMS); 1/ 1/2012, p388-391, 4p
Abstrakt: This paper proposed a novel three dimensional motion detection design. This design consists of a bionic microlens array, which integrates an aberration limited four-lens system and a CMOS image sensor to mimic insect compound eye vision. The microlens array, made from time multiplexed SF6/O2 plasma and PDMS (polydimethylsiloxane)-molding, is directly placed on the top of CMOS image sensor. A LED testing setup is prepared to project referent rays through the artificial ommatidium to the image sensor for 3D motion analysis and characterization. A computational method also has been established to convert sensor image into displacement. Both analysis and experiment results demonstrate that the design can predict the three-dimensional positions with average error less than 2.41%. [ABSTRACT FROM PUBLISHER]
Databáze: Complementary Index