Multiple slope integration based on CMOS image sensor

被引：0

作者：

Yang, Donglai ^{[1
,2
]}

Hu, Xiaodong ^{[1
]}

Li, Junna ^{[3
]}

机构：

[1] Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi'an 710119, China

[2] Graduate University of Chinese Academy of Sciences, Beijing 100049, China

[3] Xi'an Institute of Applied Optics, Xi'an 710065, China

来源：

Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | 2012年 / 41卷 / 06期

关键词：

Field programmable gate arrays (FPGA) - Pixels - Digital cameras - CMOS integrated circuits - Image sensors - Charge coupled devices;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Compared with CCD (Charge Coupled Device), the dynamic range of CMOS image sensor is narrower, which is due to its self-characteristics. With high-performance CMOS image sensor IBIS5-A-1 300 produced by CYPRESS company as the object, a research was made on the theory of its multiple slope integration, and the integration mode was used to extend its dynamic range. The design method of multiple slope integration's timing was advanced with FPGA and DSP as the hardware system. With Quartus II 7.0, the designed driver timing was simulated in function. The new designed multiple slope integration timing drive extended the optical dynamic range of CMOS image sensor, from original model of single slope integration mode 64 dB to 90 dB. The experiment result shows that multiple slope integration mode can achieve the purpose of extending the dynamic range.

引用

页码：1499 / 1502

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