Ms. Cen Lu Profile

Cen Lu

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Proceedings Article | 27 October 2013 Paper

Template match using local feature with view invariance

Gang Zhou, Cen Lu

Proceedings Volume 8919, 89190C (2013) https://doi.org/10.1117/12.2031068

KEYWORDS: Detection and tracking algorithms, Edge detection, Machine vision, Computer vision technology, Feature extraction, Signal processing, Resistance, Target detection, Lutetium, Data processing

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Matching the template image in the target image is the fundamental task in the field of computer vision. Aiming at the deficiency in the traditional image matching methods and inaccurate matching in scene image with rotation, illumination and view changing, a novel matching algorithm using local features are proposed in this paper. The local histograms of the edge pixels (LHoE) are extracted as the invariable feature to resist view and brightness changing. The merits of the LHoE is that the edge points have been little affected with view changing, and the LHoE can resist not only illumination variance but also the polution of noise. For the process of matching are excuded only on the edge points, the computation burden are highly reduced. Additionally, our approach is conceptually simple, easy to implement and do not need the training phase. The view changing can be considered as the combination of rotation, illumination and shear transformation. Experimental results on simulated and real data demonstrated that the proposed approach is superior to NCC(Normalized cross-correlation) and Histogram-based methods with view changing.

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