Abstract | ||
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A silicon retina was fabricated to emulate two fundamental types of response in the vertebrate retinal circuit, namely the sustained and transient responses. The sustained response exhibits a Laplacian-Gaussian-like receptive field. The transient response is obtained by subtracting consecutive image frames. The outputs of the chip are offset-suppressed analog voltages since uncontrollable mismatches of transistor characteristics are compensated for with the aid of sample/hold circuits embedded in each pixel circuit. The chip was applied to extract direction of motion using FPGA in real-time under an indoor illumination. |
Year | DOI | Venue |
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2003 | 10.1109/ISCAS.2003.1206316 | Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium |
Keywords | DocType | Volume |
computer vision,field programmable gate arrays,image motion analysis,sample and hold circuits,FPGA,Laplacian-Gaussian receptive field,Si,direction of motion,image processing,sample/hold circuit,silicon retina,sustained response,transient response | Conference | 4 |
ISBN | Citations | PageRank |
0-7803-7761-3 | 4 | 0.48 |
References | Authors | |
5 | 2 |
Name | Order | Citations | PageRank |
---|---|---|---|
Seiji Kameda | 1 | 25 | 7.10 |
Tetsuya Yagi | 2 | 140 | 27.73 |