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Stereo Matching and 3D Visualization for Gamma-Ray Cargo Inspection

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2 Author(s)
Zhigang Zhu ; Dept. of Comput. Sci., City Coll. of New York ; Yu-Chi Hu

In this paper, stereo matching and 3D visualization issues are studied for a linear pushbroom stereo model built for 3D gamma-ray (or X-ray) cargo inspection. A fast and automated stereo matching algorithm based on free-form deformable registration is developed to obtain 3D measurements of the objects under inspection. For facilitate stereo matching, an adaptive window min-max method is used to enhance the contrasts and boundaries of the challenging gamma-ray images. For fast implementation, a multi-resolution approach is also applied. A user interface is designed for interactive 3D measurements and visualization of the objects in interests. Experimental results are presented for real gamma-ray images of a 3D cargo container and the objects inside. The 3D measurements could add more value to today's cargo inspection techniques

Published in:

Applications of Computer Vision, 2007. WACV '07. IEEE Workshop on

Date of Conference:

Feb. 2007