Collision and Event Detection using Geometric Features in Spatio-Temporal Volumes

The University of Victoria, Victoria, British Columbia, Canada May 09-May 11

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http://doi.ieeecomputersociety.org/10.1109/CRV.2005.26

The 2nd Canadian Conference on Comput ...

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	Mathieu Marquis Bolduc, Fran?ois Desch?nes, "Collision and Event Detection using Geometric Features in Spatio-Temporal Volumes," Computer and Robot Vision, Canadian Conference, pp. 236-243, The 2nd Canadian Conference on Computer and Robot Vision (CRV'05), 2005.

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	@article{ 10.1109/CRV.2005.26, author = {Mathieu Marquis Bolduc and Fran?ois Desch?nes}, title = {Collision and Event Detection using Geometric Features in Spatio-Temporal Volumes}, journal ={Computer and Robot Vision, Canadian Conference}, volume = {0}, year = {2005}, isbn = {0-7695-2319-6}, pages = {236-243}, doi = {http://doi.ieeecomputersociety.org/10.1109/CRV.2005.26}, publisher = {IEEE Computer Society}, address = {Los Alamitos, CA, USA}, }

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	TY - CONF JO - Computer and Robot Vision, Canadian Conference TI - Collision and Event Detection using Geometric Features in Spatio-Temporal Volumes SN - 0-7695-2319-6 SP236 EP243 A1 - Mathieu Marquis Bolduc, A1 - Fran?ois Desch?nes, PY - 2005 KW - Event detection KW - Collision detection KW - Occlusion edge KW - Spatio-temporal volume KW - Ridge KW - Curvature VL - 0 JA - Computer and Robot Vision, Canadian Conference ER -

Mathieu Marquis Bolduc, Universit? de Sherbrooke, Canada

Fran?ois Desch?nes, Universit? de Sherbrooke, Canada

In video sequences, edges in 2D images (frames) produces 3D surface in the spatio-temporal volume. In this paper, we propose to consider temporal collisions between edges, and thus objects, as 3D ridges in the spatio-temporal volume. Collisions (i.e. ridge points) can be located using the maximum principal curvature and the principal curvature direction. Using the detected collisions, we then propose a technique to detect overlapping objects events in an image sequence, by neither computing depth or optical flow. We present successful experiments on real image sequences.

Index Terms:

Event detection, Collision detection, Occlusion edge, Spatio-temporal volume, Ridge, Curvature

Citation:

Mathieu Marquis Bolduc, Fran?ois Desch?nes, "Collision and Event Detection using Geometric Features in Spatio-Temporal Volumes," crv, pp.236-243, The 2nd Canadian Conference on Computer and Robot Vision (CRV'05), 2005

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