Ponencia
An AER Contrast Retina with On-Chip Calibration
Autor/es | Costas Santos, Jesús
Serrano Gotarredona, María Teresa Serrano Gotarredona, Rafael Linares Barranco, Bernabé |
Departamento | Universidad de Sevilla. Departamento de Arquitectura y Tecnología de Computadores |
Fecha de publicación | 2007 |
Fecha de depósito | 2020-10-09 |
Publicado en |
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ISBN/ISSN | 1-4244-0920-9 0271-4302 |
Resumen | We present a contrast retina microchip that provides its
output as an AER (Address Event Representation) stream.
Contrast is computed as the ratio between pixel
photocurrent and a local average between neighboring
pixels ... We present a contrast retina microchip that provides its output as an AER (Address Event Representation) stream. Contrast is computed as the ratio between pixel photocurrent and a local average between neighboring pixels obtained with a diffusive network. This current based computation produces a large mismatch between neighboring pixels, because the currents can be as low as a few pico amperes. Consequently, a compact calibration circuitry has been included to calibrate each pixel. The paper describes the design of the pixel with its contrast computation and calibration sections. Experimental results are provided for a prototype fabricated in a standard 0.35μm CMOS process. |
Agencias financiadoras | Comisión Interministerial de Ciencia y Tecnología (CICYT). España European Union (UE) |
Identificador del proyecto | TIC2003-08164-C03-01
IST-2001-34124 |
Cita | Costas Santos, J., Serrano Gotarredona, M.T., Serrano Gotarredona, R. y Linares Barranco, B. (2007). An AER Contrast Retina with On-Chip Calibration. En ISCAS 2007: IEEE International Symposium on Circuits and Systems (3075-3078), New Orleans, USA: IEEE Computer Society. |
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