Title: Internal and External Salient Points under Affine Transformations: Comparative Study
Authors: Mashtalir, S.
Shcherbinin, K.
Yegorova, E.
Citation: WSCG '2006: Full Papers Proceedings: The 14-th international Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2006: University of West Bohemia, Plzen, Czech Republic, January 31 – February 2, 2006, p. 217-224.
Issue Date: 2006
Publisher: Václav Skala - UNION Agency
Document type: konferenční příspěvek
URI: http://wscg.zcu.cz/WSCG2006/Papers_2006/Full/!WSCG2006_Full_Proceedings_Final.pdf
ISBN: 80-86943-03-8
Keywords: zpracování obrazu;matematická morfologie;normalizace obrazu
Keywords in different language: image processing;mathematical morphology;image normalization
Abstract: Permanently a special emphasis is given to image processing considering geometric distortions for remote sensing, and image tracking especially. We discuss an approach to affine transformation parameters search on the base of salient points which can be external and internal relative to shapes. To find affinity we use sets of image binary cuts and one-to-one point correspondence. This correspondence is determined by means of the affine-equivalent shape ratio invariance. We investigate two types of salient points on the base of binary morphology. First ones are vertices of convex hulls and second ones belong to skeletons. Finally, solution of overdetermined system of linear equations gives us affine transformation parameters. Results of the exterior points and skeleton normalization methods comparative analysis are discussed.
Rights: © Václav Skala - UNION Agency
Appears in Collections:WSCG '2006: Full Papers Proceedings

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