A high-dynamic-range integrating pixel with an adaptive logarithmic response

被引：13

作者：

Cheng, Hsiu-Yu ^{[1
]}

Choubey, Bhaskar ^{[1
]}

Collins, Steve ^{[1
]}

机构：

[1] Univ Oxford, Dept Engn Sci, Oxford OX1 3PJ, England

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2007年 / 19卷 / 13-16期

基金：

英国工程与自然科学研究理事会;

关键词：

adaptive logarithmic pixel; complementary metal-oxide-semiconductor (CMOS) image sensor; logarithmic pixel;

D O I：

10.1109/LPT.2007.901466

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A majority of charge-coupled device and complementary metal-oxide-semiconductor imaging sensors obtain a linear response by integrating the photocurrent in the pixel. This is a simple transduction method; however, the dynamic range of the resulting pixels is smaller than that of many scenes. A biologically inspired approach to solving this problem is to create a pixel with a logarithmic response. A new design for an integrating pixel with a logarithmic response is presented in this letter. The theory of operation of the pixel is described before results are reported that show that the pixel has an adaptive response and a dynamic range of more than 120 dB.

引用

页码：1169 / 1171

页数：3

共 10 条

[1] A 1/3" VGA linear wide dynamic range CMOS image sensor implementing a predictive multiple sampling algorithm with overlapping integration intervals [J].