Estimating 3D parameters of moving point target in multichannel optical imaging system

Wei Zhang; Youshan Qu; Weijian Tian

doi:10.1117/12.577331

8 February 2005 Estimating 3D parameters of moving point target in multichannel optical imaging system

Wei Zhang, Youshan Qu, Weijian Tian

Proceedings Volume 5637, Electronic Imaging and Multimedia Technology IV; (2005) https://doi.org/10.1117/12.577331
Event: Photonics Asia, 2004, Beijing, China

Abstract

It is very difficult to measure the distance of a moving point target which is not cooperative for detecting in the remote sensing field, because that the point target has no geometrical dimensions and textures can be used and is easy to be missed. In this paper, a new algorithm based on the image sequence and the nonlinear regressive filtering algorithm is proposed, in order to determine the 3-D parameters of the moving point target in an efficient passive way. And a new multi-channel optical imaging system is designed, which is composed of a high- resolution center imaging system and four low-resolution sub-imaging systems. By the geometrical relationship of the four sub-imaging system, the initial values of the nonlinear regressive filtering algorithm for estimating can be obtained easily. Finally, the experiments of the proposed algorithm have been done on a real system, and the results proved that the algorithm could passively obtain the 3-D parameters of the moving point target efficiently. Furthermore, in the estimating procedure, the character of the nonlinear regressive filtering algorithm saves lots of memory units and reduces the computing quantity.

Citation Download Citation

Wei Zhang, Youshan Qu, and Weijian Tian "Estimating 3D parameters of moving point target in multichannel optical imaging system", Proc. SPIE 5637, Electronic Imaging and Multimedia Technology IV, (8 February 2005); https://doi.org/10.1117/12.577331

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KEYWORDS

Imaging systems

Multichannel imaging systems

Detection and tracking algorithms

3D acquisition

Optical imaging

3D image processing

Motion estimation

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