| Presentation | 2022-12-03 Spatio-temporal filtering circuit simulating the characteristics of the visual nervous system Yuuki Yamaji, Hirotsugu Okuno, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In the present study, we designed a spatio-temporal filter circuit that simulates the characteristics of the visual nervous system by combining a multi-scale spatial Gabor filter and a temporal band-pass filter. To reduce the computational load of the spatial filter, we employed the following techniques: separating one two-dimentional filter into two one-dimentional filters by using the separability of Gaussian and Gabor functions, and multi-scale filter kernels that differ in width but not in shape. We implemented the filter circuit into a field-programmable gate array (FPGA), and developed an image sensor system that consists of a FPGA and a CMOS image sensor. The system provided spatio-temporal filtered images with 160 $times$ 120 pixels at about 110 frames / second. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | multi-scale / Gabor filter / FPGA / image sensor / neuromorphic |
| Paper # | MBE2022-33,NC2022-55 |
| Date of Issue | 2022-11-26 (MBE, NC) |
| Conference Information | |
| Committee | MBE / NC |
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| Conference Date | 2022/12/3(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Osaka Electro-Communication University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | NC, ME, etc. |
| Chair | Junichi Hori(Niigata Univ.) / Hiroshi Yamakawa(Univ of Tokyo) |
| Vice Chair | Hisashi Yoshida(Kinki Univ.) / Hirokazu Tanaka(Tokyo City Univ.) |
| Secretary | Hisashi Yoshida(Setsunan Univ) / Hirokazu Tanaka(Tohoku Inst. of Tech.) |
| Assistant | Emi Yuda(Tohoku Univ) / Miki Kaneko(Osaka Univ.) / Yoshimasa Tawatsuji(Waseda Univ.) / Tomoki Kurikawa(KMU) |
| Paper Information | |
| Registration To | Technical Committee on ME and Bio Cybernetics / Technical Committee on Neurocomputing |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Spatio-temporal filtering circuit simulating the characteristics of the visual nervous system |
| Sub Title (in English) | |
| Keyword(1) | multi-scale |
| Keyword(2) | Gabor filter |
| Keyword(3) | FPGA |
| Keyword(4) | image sensor |
| Keyword(5) | neuromorphic |
| 1st Author's Name | Yuuki Yamaji |
| 1st Author's Affiliation | Osaka Institute of Technology(OIT) |
| 2nd Author's Name | Hirotsugu Okuno |
| 2nd Author's Affiliation | Osaka Institute of Technology(OIT) |
| Date | 2022-12-03 |
| Paper # | MBE2022-33,NC2022-55 |
| Volume (vol) | vol.122 |
| Number (no) | MBE-291,NC-292 |
| Page | pp.pp.47-50(MBE), pp.47-50(NC), |
| #Pages | 4 |
| Date of Issue | 2022-11-26 (MBE, NC) |