Italian Chapter Conference 2010
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Browsing Italian Chapter Conference 2010 by Subject "Categories and Subject Descriptors (according to ACM CCS): I.4.8 [Image Processing and Computer Vision]: Scene Analysis-Tracking"
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Item 3D Body Model Construction and Matching for Real Time People Re-Identification(The Eurographics Association, 2010) Baltieri, Davide; Vezzani, Roberto; Cucchiara, Rita; Enrico Puppo and Andrea Brogni and Leila De FlorianiWide area video surveillance always requires to extract and integrate information coming from different cameras and views. Re-identification of people captured from different cameras or different views is one of most challenging problems. In this paper, we present a novel approach for people matching with vertices-based 3D human models. People are detected and tracked in each calibrated camera, and their silhouette, appearance, position and orientation are extracted and used to place, scale and orientate a 3D body model. Colour features are computed from the 2D appearance images and mapped to the 3D model vertices, generating the 3D model for each tracked person. A distance function between 3D models is defined in order to find matches among models belonging to the same person. This approach achieves robustness against partial occlusions, pose and viewpoint changes. A first experimental evaluation is conducted using images extracted from a real camera set-up.