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From images to shape models for object detection

Vittorio Ferrari 1 Frédéric Jurie 2 Cordelia Schmid 3
2 Equipe Image - Laboratoire GREYC - UMR6072
GREYC - Groupe de Recherche en Informatique, Image et Instrumentation de Caen
3 LEAR - Learning and recognition in vision
Inria Grenoble - Rhône-Alpes, LJK - Laboratoire Jean Kuntzmann, Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology
Abstract : We present an object class detection approach which fully integrates the complementary strengths offered by shape matchers. Like an object detector, it can learn class models directly from images, and can localize novel instances in the presence of intra-class variations, clutter, and scale changes. Like a shape matcher, it finds the boundaries of objects, rather than just their bounding-boxes. This is achieved by a novel technique for learning a shape model of an object class given images of example instances. Furthermore, we also integrate Hough-style voting with a non-rigid point matching algorithm to localize the model in cluttered images. As demonstrated by an extensive evaluation, our method can localize object boundaries accurately and does not need segmented examples for training (only bounding-boxes).
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Submitted on : Monday, December 20, 2010 - 10:23:55 AM
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Vittorio Ferrari, Frédéric Jurie, Cordelia Schmid. From images to shape models for object detection. International Journal of Computer Vision, Springer Verlag, 2010, 87 (3), pp.284-303. ⟨10.1007/s11263-009-0270-9⟩. ⟨inria-00548643⟩



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