title: Contour based object detection using part bundles.
abstract: In this paper we propose a novel framework for contour based object detection from cluttered environments. Given a contour model for a class of objects, it is first decomposed into fragments hierarchically. Then, we group these fragments intopart bundles, where a part bundle can contain overlapping fragments. Given a new image with set of edge fragments we develop an efficient voting method using local shape similarity between part bundles and edge fragments that generates high quality candidate part configurations. We then use global shape similarity between the part configurations and the model contour to find optimal configuration. Furthermore, we show that appearance information can be used for improving detection for objects with distinctive texture when model contour does not sufficiently capture deformation of the objects.
authors.affiliation: Dept. of Computer and Information Science, Temple University, 324 Wachman Hall, 1805 N Broad St., Philadelphia, PA 19122, USA; Dept. of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; Div Commun and Intelligent Networks, Wuhan National Laboratory for Optoelectronics, Wuhan 430074, China.
authors.forename: ChengEn
authors.initials: C
authors.lastname: Lu
authors.affiliation: Biotechnology Center, University of Winsconsin-Madison, T129 Waisman Center,1500 Highland Ave, Madison, WI 53705, USA.
authors.forename: Nagesh
authors.initials: N
authors.lastname: Adluru
authors.affiliation: Dept. of Computer and Information Science, Temple University, 324 Wachman Hall, 1805 N Broad St., Philadelphia, PA 19122, USA.
authors.forename: Haibin
authors.initials: H
authors.lastname: Ling
authors.affiliation: Dept. of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; Div Commun and Intelligent Networks, Wuhan National Laboratory for Optoelectronics, Wuhan 430074, China.
authors.forename: Guangxi
authors.initials: G
authors.lastname: Zhu
authors.affiliation: Dept. of Computer and Information Science, Temple University, 324 Wachman Hall, 1805 N Broad St., Philadelphia, PA 19122, USA.
authors.forename: Longin Jan
authors.initials: LJ
authors.lastname: Latecki
keywords: Object detection; Part bundle; Shape context