Title :
Digital calibration technique for highly linear wide dynamic range CMOS imaging sensor
Author :
Yuan, J. ; Chan, H.Y. ; Fung, S.W. ; Liu, B.
Author_Institution :
Dept. of Electron. & Comput. Eng., Hong Kong Univ. of Sci. & Technol., Hong Kong
Abstract :
A novel digital calibration scheme is developed to improve the linearity of a wide dynamic range (DR) CMOS imaging sensor, with a low calibration overhead. Experimental results show that the distortion of the fabricated imaging sensor reaches -75.6-dB over the 95.3-dB DR after calibration.
Keywords :
CMOS image sensors; calibration; CMOS imaging sensor; digital calibration; highly linear imaging sensor; sensor distortion; wide dynamic range sensor;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.3253
