An active focal plane motion compensation system is presented in this paper. In this system, a high speed matrix CCD sensor is used for image motion detection. The matrix CCD sensor is a auxiliary sensor (about 256X256 pixel) which is installed side by side with the main image sensor of the camera. The main image sensor is putted on a micro-displacement platform which is drived by tow piezoelectric actuators. So the main image sensor can shift in tow directions. In order to realize real-time image motion estimation,the Gray Projection algorithm is used to calculate image motion vector. To achieve the required accuracy, the operation of the piezoelectric actuator is controlled in a closed loop system. The results of simulation experiments showed that the accuracy of the motion detection can reach 0.5 ~1 pixel size, and the compensation can be controlled on the scale of sub pixel. theory analyzing demonstrate that proposed method is reasonable and efficient. It will be helpful for space cameras to acquire high resolution images on unstable space platforms .

Date Published: 8 September 2011
PDF: 9 pages
Proc. SPIE 8193, International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, 819329 (8 September 2011); doi: 10.1117/12.900306

Published in SPIE Proceedings Vol. 8193:
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications
Jeffery J. Puschell; Junhao Chu; Haimei Gong; Jin Lu, Editor(s)