Show simple item record



dc.contributor.authorMikulik, Andrej
dc.contributor.authorMatas, Jiří
dc.contributor.authorPerd’och, Michal
dc.contributor.authorChum, Ondřej
dc.date.accessioned2012-06-12T14:59:21Z
dc.date.available2012-06-12T14:59:21Z
dc.date.issued2010-08
dc.identifier.citationAndrej Mikulik, Jirí Matas, Michal Perdoch, and Ondrej Chum. Construction of precise local affine frames. In Roy Sterritt, editor, ICPR'2010: Proceedings of the 20th International Conference on Pattern Recognition, pages 3565-3569, 10662 Los Vaqueros Circle, Los Alamitos, USA, August 2010. IEEE Computer Society.cze
dc.identifier.urihttp://hdl.handle.net/10467/9557
dc.description.abstractWe propose a novel method for the refinement of Maximally Stable Extremal Region (MSER) boundaries to sub-pixel precision by taking into account the intensity function in the 2 × 2 neighborhood of the contour points. The proposed method improves the repeatability and precision of Local Affine Frames (LAFs) constructed on extremal regions. Additionally, we propose a novel method for detection of local curvature extrema on the refined contour. Experimental evaluation on publicly available datasets shows that matching with the modified LAFs leads to a higher number of correspondences and a higher inlier ratio in more than 80% of the test image pairs. Since the processing time of the contour refinement is negligible, there is no reason not to include the algorithms as a standard part of the MSER detector and LAF constructions.eng
dc.language.isocescze
dc.publisherIEEEcze
dc.rights© 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.eng
dc.subjectdiscretized contoureng
dc.subjectcontour refinementeng
dc.subjectcurvature estimationeng
dc.subjectcurvature extremaeng
dc.titleConstruction of Precise Local Affine Framescze
dc.typepříspěvek z konference - elektronickýcze
dc.identifier.doi10.1109/ICPR.2010.870


Files in this item



This item appears in the following Collection(s)

Show simple item record