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Proceedings Paper

Readout circuit design of the retina-like CMOS image sensor
Author(s): Fengmei Cao; Shengyu Song; Tingzhu Bai; Nan Cao
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Paper Abstract

Readout circuit is designed for a special retina-like CMOS image sensor. To realize the pixels timing drive and readout of the sensor, the Altera's Cyclone II FPGA is used as a control chip. The voltage of the sensor is supported by a voltage chip initialized by SPI with AVR MCU system. The analog image signal outputted by the sensor is converted to digital image data by 12-bits A/D converter ADS807 and the digital data is memorized in the SRAM. Using the Camera-link image grabber, the data stored in SRAM is transformed to image shown on PC. Experimental results show the circuit works well on retina-like CMOS timing drive and image readout and images can be displayed properly on the PC.

Paper Details

Date Published: 19 February 2015
PDF: 7 pages
Proc. SPIE 9449, The International Conference on Photonics and Optical Engineering (icPOE 2014), 94491D (19 February 2015); doi: 10.1117/12.2075962
Show Author Affiliations
Fengmei Cao, Beijing Institute of Technology (China)
Shengyu Song, Beijing Institute of Technology (China)
Tingzhu Bai, Beijing Institute of Technology (China)
Nan Cao, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 9449:
The International Conference on Photonics and Optical Engineering (icPOE 2014)
Ailing Tian; Anand Asundi; Weiguo Liu; Chunmin Zhang, Editor(s)

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