HE Shu-wen, WANG Yan-jie, SUN Hong-hai, ZHANG Lei, WU Pei. Design of high dynamic scientific CMOS camera system[J]. , 2015,30(4): 729-735 DOI: 10.3788/YJYXS20153004.0729.
Design of high dynamic scientific CMOS camera system
In order to meet the demands of high dynamic range for CMOS camera under the mode of global shutter
a camera system is designed based on CIS-2521 sCMOS image sensor device.By analyzing the readout structure characteristics of pixel of CIS-2521 chip and the driving timing under the mode of global shutter
we choose FPGA with DDR3 as the processing structure and complete the design of SOPC including the control of imaging parameters
driving timing of sCMOS
capturing the image data
image preprocessing and so on
and introduces the function of every module.The designed camera realizes the imaging output of 50 frames of 2 5602 160 pixel and 14 bit depth with high sensitivity
high dynamic range per second by the imaging test
and it meets the requirement of scientific imaging.
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references
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