About: Construction of Precise Local Affine Frames

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We 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 2x2 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. We 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 2x2 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. (en)
Title	Construction of Precise Local Affine Frames Construction of Precise Local Affine Frames (en)
skos:prefLabel	Construction of Precise Local Affine Frames Construction of Precise Local Affine Frames (en)
skos:notation	RIV/68407700:21230/10:00175518!RIV11-GA0-21230___
http://linked.open...avai/riv/aktivita	P R S
http://linked.open...avai/riv/aktivity	P(7E08031), P(7E10045), P(GA102/07/1317), R, S
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Matas, Jiří Chum, Ondřej Mikulík, Andrej Perďoch, Michal
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta elektrotechnická
http://linked.open...dnocenehoVysledku	251907
http://linked.open...ai/riv/idVysledku	RIV/68407700:21230/10:00175518
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	discretized contour; contour refinement; curvature estimation; curvature extrema (en)
http://linked.open.../riv/klicoveSlovo	contour refinement curvature estimation curvature extrema discretized contour
http://linked.open...ontrolniKodProRIV	[BD8526579B06]
http://linked.open...v/mistoKonaniAkce	Istambul
http://linked.open...i/riv/mistoVydani	Los Alamitos
http://linked.open...i/riv/nazevZdroje	ICPR'2010: Proceedings of the 20th International Conference on Pattern Recognition
http://linked.open...in/vavai/riv/obor	JD
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Methods for Visual Recognition of Large Collections of Non-rigid Objects Dynamic Interactive Perception-action Learning in Cognitive Systems Massive Sets of Heuristics for Machine Learning
http://linked.open...UplatneniVysledku	2010
http://linked.open...iv/tvurceVysledku	Matas, Jiří Perďoch, Michal Chum, Ondřej Mikulík, Andrej
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2010-08-23 (xsd:date)
issn	1051-4651
number of pages	5 (xsd:int)
http://purl.org/ne...btex#hasPublisher	IEEE Computer Society Press
https://schema.org/isbn	978-0-7695-4109-9
http://localhost/t...ganizacniJednotka	21230

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