西安理工大学学报2016，Vol.32Issue(3)：253-258,6.DOI:10.19322/j.cnki.issn.1006-4710.2016.03.001
应用于无透镜细胞成像系统的非线性CMOS 图像传感器
Nonlinear CMOS image sensor for lensless cell imaging application
摘要
Abstract
A nonlinear CMOS image sensor integrated with contrast stretch for lensless cell ima-ging system is presented in this paper,with coarse quantified in the background light intensity and fine quantified in the cell light intensity by using a configurable multi-frequency counter. Compared with the conventional off-chip contrast stretching algorithm,using this method does not degrade image quality at the interested light intensity range (cell)at the cost of unconsidered range (background)in the same quantization precision.The static characteristics simulation re-sults through spectre indicate that the nonlinear single-slope ADC is satisfied with 10-bit accuracy for the three modes.Matlab simulation results show that the more details of cell image can be ob-tained by this method,providing the higher precision of cell image for the image data processing.关键词
无透镜成像/CMOS 图像传感器/非线性单斜率 ADC/分段式线性对比度拉伸/数字可Key words
lensless imaging/CMOS image sensor/nonlinear single-slope ADC/piecewise linear contrast stretch/digital configurable multi-frequency counter分类
信息技术与安全科学引用本文复制引用
吕楠,余宁梅,张鹤玖..应用于无透镜细胞成像系统的非线性CMOS 图像传感器[J].西安理工大学学报,2016,32(3):253-258,6.基金项目
国家自然科学基金资助项目（61471296）；陕西省国际科技合作与交流计划资助项目 （）
