Acta Optica Sinica, Volume. 33, Issue 1, 104001(2013)
Research of MTF Velocity Mismatch Model for Time Delay Integration CMOS Area Image Sensors
Modulation transfer function (MTF) velocity mismatch feature for time delay integration (TDI) complementary metal-oxide-semicoductor (CMOS) area image sensors is studied. A model of MTF velocity mismatch is proposed. The effecting factors such as accumulation stage, pixel size, lens magnification, line cycle, motor velocity are analyzed. A TDI algorithm for CMOS area image sensor is applied to achieve time delay integration. The TDI-CMOS system is developed based on a FPGA development board. The experimental results show that fMTF increases 50% by 8 accumulation stage compared to CMOS area sensor, when the intensity is 3 lx and velocity mismatch M(ΔV/V) is less than 2. The fMTF at the Nyquist frequency decreases 10% by 8 accumulation stage, when the velocity mismatch M(ΔV/V)=2. When the velocity mismatch M(ΔV/V)=10, the fMTF decreases 35%.
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Yuan Gaobin, Li Binqiao, Xu Jiangtao, Nie Kaiming. Research of MTF Velocity Mismatch Model for Time Delay Integration CMOS Area Image Sensors[J]. Acta Optica Sinica, 2013, 33(1): 104001
Category: Detectors
Received: Jun. 26, 2012
Accepted: --
Published Online: May. 26, 2020
The Author Email: Jiangtao Xu (xujiangtao@tju.edu.cn)