Abstract
We introduce Erosion Band Signatures (EBS), which are a codification of the spatial coherence of features extracted from a region. This coherence is often lost in traditional global and local feature extraction methods, thereby diminishing a feature’s discriminative strength. The erosion band signature is generated through iterative erosions of the region of interest, forming what we call erosion bands. Features are then extracted from each band and accumulated in a specific order to form the EB signature, which preserves spatial information of the features. To demonstrate the versatility of EBS, we have implemented the method in two very different applications: polyp detection and region-based head tracking. In polyp detection, EBS provides an effective way to characterize spatial differences between the perimeter and core of a polyp candidate, and improves a state-of-the-art computer-aided detection method with an improved 27.6% reduction of false positives. We also apply EBS analysis to region-based tracking yielding a very clear improvement in both robustness and accuracy.
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Vazquez, E., Yang, X. & Slabaugh, G. Erosion band signatures for spatial extraction of features. Machine Vision and Applications 24, 695–705 (2013). https://doi.org/10.1007/s00138-012-0422-8
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DOI: https://doi.org/10.1007/s00138-012-0422-8