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Optical Engineering

Modified temporal difference method for change detection
Author(s): Cheng-Chi Chang; Tsorng-Lin Chia; Chen-Kuei Yang
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Paper Abstract

There is a tradeoff between effective and computational costs in traditional change detection methods. Reducing the computational cost of the processing time results in loss of quality of detection results. We propose a new change detection method based on the temporal difference principle. The new method combines the connected component labeling, closing operation of image morphology, and human structure analysis to remove shading and noise in consecutive frames. A closed object boundary and region can be extracted with only a small additional cost in processing times. Additionally, this new method recovers the disadvantages of traditional temporal difference methods. Comparative results, in terms of computational complexity, completeness of the object and the object's outline, robustness against noise and shadow, with currently popular methods and the proposed method are also displayed. The experimental results show that the proposed method is robust in varied illuminations and effective in several predefined environments for change detection.

Paper Details

Date Published: 1 February 2005
PDF: 10 pages
Opt. Eng. 44(2) 027001 doi: 10.1117/1.1839893
Published in: Optical Engineering Volume 44, Issue 2
Show Author Affiliations
Cheng-Chi Chang, Ming Chuan Univ. (Taiwan)
Tsorng-Lin Chia, Ming Chuan Univ. (Taiwan)
Chen-Kuei Yang, Ming Chuan Univ. (Taiwan)

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