Title :
Computation model of image motion velocity for space optical remote cameras
Author :
Zhong, Weichao ; Deng, Hong ; Sun, Zhaowei ; Wu, Xiande
Author_Institution :
Res. Centre of Satellite Technol., Harbin Inst. of Technol., Harbin, China
Abstract :
The computation of image motion velocity is the premise of high resolution optical imaging. To solve this problem, the model of image motion velocity for spaceborne cameras is established in this paper. The positions of a target and the pixel plane are expressed in the camera coordinate system based on five coordinate systems and multiply coordinate translations. The calculation formulas of target position and image motion velocity are deduced. The method, in which the orbit and attitude parameters are considered as a whole, is applicable for complex imaging missions and general orbits. The practical value of the study lies in image motion velocity compensation, drift angle compensation, and the location of observed target. Finally, the mathematical simulation shows that the model and the derivation are correct under several typical applications.
Keywords :
cameras; geophysical image processing; image resolution; motion compensation; optical images; target tracking; attitude parameter; camera coordinate system; complex imaging missions; computation model; drift angle compensation; high resolution optical imaging; image motion velocity compensation; mathematical simulation; orbit parameter; pixel plane; space optical remote camera; spaceborne camera; target location; target position; Cameras; Charge coupled devices; Computational modeling; Earth; Image resolution; Optical computing; Optical imaging; Optical sensors; Remote monitoring; Space technology; drift angle; image motion velocity; optical remote sensing; target location;
Conference_Titel :
Mechatronics and Automation, 2009. ICMA 2009. International Conference on
Conference_Location :
Changchun
Print_ISBN :
978-1-4244-2692-8
Electronic_ISBN :
978-1-4244-2693-5
DOI :
10.1109/ICMA.2009.5245072
