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A Corner Detector based on Global and Local Curvature Properties 1.0

  Date Added: May 03, 2013  |  Visits: 292

A Corner Detector based on Global and Local Curvature Properties

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CORNER works by the following step:1. Apply the Canny edge detector to the grey level image and obtain a binary edge-map.2. Extract the edge contours from the edge-map, fill the gaps in the contours.3. Compute curvature at a low scale for each contour to retain all true corners.All of the curvature local maxima are considered as initial corner candidates.4. Initial corner candidates are compared using an adaptive local threshold to remove the round corners.5. The angles of corner candidates are evaluated to eliminate any false corners due to quantization noise and trivial details. The above evaluation is based on a dynamic region of support, which changes according to its adjacent corner candidates.6. End points of contours are considered with an additional criterion.Algorithm is derived from:X.C. He and N.H.C. Yung, "Curvature Scale Space Corner Detector with Adaptive Threshold and Dynamic Region of Support", Proceedings of the 17th International Conference on Pattern Recognition, 2:791-794, August 2004.Improved algorithm of above has been published in:X.C. He and N.H.C. Yung, d-deDUCorner detector based on global and local curvature propertiesd-deDt, Optical Engineering, 47(5), pp: 057008, 2008. (This paper is included in corner.rar for reference)

Requirements: No special requirements
Platforms: Matlab
Keyword: Adaptive Algorithm Corner Derived Detector Dynamic Quotcurvature Scale Space Threshold
Users rating: 0/10

License: Shareware Size: 2.75 MB
A CORNER DETECTOR BASED ON GLOBAL AND LOCAL CURVATURE PROPERTIES RELATED
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