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Disparity Map Refinement for Video Based Scene Change Detection Using a Mobile Stereo Camera Platform

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2 Author(s)
Haberdar, H. ; Quantitative Imaging Lab., Univ. of Houston Houston, Houston, TX, USA ; Shah, S.K.

This paper presents a novel disparity map refinement method and vision based surveillance framework for the task of detecting objects of interest in dynamic outdoor environments from two stereo video sequences taken at different times and from different viewing angles by a mobile camera platform. The proposed framework includes several steps, the first of which computes disparity maps of the same scene in two video sequences. Preliminary disparity images are refined based on estimated disparities in neighboring frames. Segmentation is performed to estimate ground planes, which in turn are used for establishing spatial registration between the two video sequences. Finally, the regions of change are detected using the combination of texture and intensity gradient features. We present experiments on detection of objects of different sizes and textures in real videos.

Published in:

Pattern Recognition (ICPR), 2010 20th International Conference on

Date of Conference:

23-26 Aug. 2010

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