Structuring Visual Words in 3D for Arbitrary-View Object Localization

Abstract. We propose a novel and efficient method for generic arbitraryview object class detection and localization. In contrast to existing singleview and multi-view methods using complicated mechanisms for relating the structural information in different parts of the objects or different viewpoints, we aim at representing the structural information in their true 3D locations. Uncalibrated multi-view images from a hand-held camera are used to reconstruct the 3D visual word models in the training stage. In the testing stage, beyond bounding boxes, our method can automatically determine the locations and outlines of multiple objects in the test image with occlusion handling, and can accurately estimate both the intrinsic and extrinsic camera parameters in an optimized way. With exemplar models, our method can also handle shape deformation for intra-class variance. To handle large data sets from models, we propose several speedup techniques to make the prediction efficient. Experimental ...

• Type: Conference
• Year: 2008
• Where: ECCV
• Authors: Jianxiong Xiao, Jingni Chen, Dit-Yan Yeung, Long Quan
• Keywords: Computer Vision, ECCV 2008, Efficient Method, Extrinsic Camera Parameters, Multi-view Methods, Uncalibrated Multi-view Images, Visual Word Models