| Title | Circuit design of high-dynamic-range image sensor pixel for visual prostheses |
| Authors | Sui, Xiao-Hong Gao, Yong Zhao, Jie-Xi Yang, Yuan Ren, Qiu-Shi |
| Affiliation | School of Biomedical Engineering, Shanghai Jiaotong University, Shanghai 200240, China School of Automation and Information Engineering, Xi'an University of Technology, Xi'an, Shaanxi 710048, China College of Engineering, Peking University, Beijing 100871, China |
| Issue Date | 2011 |
| Publisher | tien tzu hsueh paoacta electronica sinica |
| Citation | Tien Tzu Hsueh Pao/Acta Electronica Sinica.2011,39,(8),1800-1804. |
| Abstract | A novel pixel circuit of high dynamic range CMOS image sensor (CIS) was presented for the applications of visual prosthesis, which used the conditional overflow capacitors and multiple integration technologies to achieve high dynamic range, high sensitivity and high signal to noise ratio (SNR) requirements. The designed circuit was simulated using Chartered Semiconductor 0.35 ??m CMOS process model parameters, the simulating results showed that the dynamic range was increased by about 62 dB than the traditional 4 Transistor Active Pixel Sensor (4T APS) circuit, and the SNR and sensitivity were as high as the 4T APS in weak signal conditions. |
| URI | http://hdl.handle.net/20.500.11897/412065 |
| ISSN | 03722112 |
| Indexed | EI |
| Appears in Collections: | 工学院 |
