Pose refinement of active models using forces in 3D


Pose refinement of active models using forces in 3D

A D Worrall, G D Sullivan & K D Baker.

Dept of Computer Science, University of Reading,

Reading, UK. RG6 2AY

Email: Anthony.Worrall@Reading.ac.uk

Abstract

A new algorithm is described for refining the pose of a model of a rigid object, to conform more accurately to the image structure. Elemental 3D forces are considered to act on the model. These are derived from directional derivatives of the image local to the projected model features. The convergence properties of the algorithm is investigated and compared to a previous technique. Its use in a video sequence of a cluttered outdoor traffic scene is also illustrated and assessed.

Postscript (0.9Mb)


Last Modified: 05:54pm BST, July 14, 1997