The design of rotation-invariant pattern recognition using the silicon retina

被引:12
作者
Chiu, CF [1 ]
Wu, CY [1 ]
机构
[1] NATL CHIAO TUNG UNIV,INST ELECT,DEPT ELECT ENGN,INTEGRATED CIRCUITS & SYST LAB,HSINCHU 300,TAIWAN
关键词
circular harmonic transformation; rotation-invariant; silicon retina;
D O I
10.1109/4.563674
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A new rotation-invariant pattern recognition system is proposed and analyzed, In this system, silicon retina cells capable of image sensing and edge extraction are used so that the system can directly process images from the real world without an extra edge detector, The rotation-invariant discrete correlation function is modified and implemented in the silicon retina structure by using the current summation. Simulation results have verified the correct function of the proposed system, Moreover, an experimental chip to implement the proposed system with a 32 x 32 cell array has been designed and fabricated in 0.8-mu m n-well CMOS process, Experimental results have successfully shown that the system works well for the arbitrary orientation pattern recognition.
引用
收藏
页码:526 / 534
页数:9
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