Research on shutter mode of CMOS imager and its application

Dan Liu; Zhi Liu; Wei Sun; Jing Zhang

doi:10.1117/12.896734

18 August 2011 Research on shutter mode of CMOS imager and its application

Dan Liu, Zhi Liu, Wei Sun, Jing Zhang

Proceedings Volume 8194, International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications; 81940D (2011) https://doi.org/10.1117/12.896734
Event: International Symposium on Photoelectronic Detection and Imaging 2011, 2011, Beijing, China

Abstract

Research the specific applications of rolling shutter of CMOS image sensor with CMOS image sensor. First, this paper introduces the principle and characteristics of global shutter and rolling shutter of the CMOS imager, it analyzes the impact of rolling shutter on measurement precision of the imaging system based on CMOS imager. Imaging experiment is taken to test the analyses of the rolling shutter. Then, an original method for computing instantaneous 3D pose and velocity of fast moving objects using a single view is presented. It exploits image deformations induced by rolling shutter in CMOS image sensors. Finally, a general perspective projection model of a moving 3D point is presented. A solution for the pose and velocity recovery problem is then described. Results indicate that some aberrations appear in faith, and the aberration degree has close relations with some parameters of CMOS imager like integration. After experiments can minimize error in the case of moving objects by the pose and speed parameters, the calculation error is under 2.5 percent. Experimental results with real data confirm the relevance of the approach. The resulting algorithm enables to transform a CMOS low cost and low power camera into an original velocity sensor.

Citation Download Citation

Dan Liu, Zhi Liu, Wei Sun, and Jing Zhang "Research on shutter mode of CMOS imager and its application", Proc. SPIE 8194, International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, 81940D (18 August 2011); https://doi.org/10.1117/12.896734

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