Shape-Regulated Particle Filtering for Tracking Non-Rigid Objects
| Title | Shape-Regulated Particle Filtering for Tracking Non-Rigid Objects |
| Publication Type | Conference Papers |
| Year of Publication | 2006 |
| Authors | Shao J, Chellappa R, Porikli F |
| Conference Name | Image Processing, 2006 IEEE International Conference on |
| Date Published | 2006/10// |
| Keywords | (numerical, 2D, algorithm;affine, based, contour, detection;dynamic, detection;motion, detection;parameter, estimation;active, estimation;object, estimation;particle, Filtering, filtering;probabilistic, filters;, map;shape-regulation;affine, methods);tracking, model;nonrigid, MOTION, object, scenes;deformation, tracking;parameter, transform;cluttered, transforms;clutter;edge |
| Abstract | This paper presents an active contour based algorithm for tracking non-rigid objects in heavily cluttered scenes. We decompose the non-rigid contour tracking problem into three subproblems: 2D motion estimation, deformation detection, and shape regulation. First, we employ a particle filter to estimate the affine transform parameters between successive frames. Second, by using a dynamic object model, we generate a probabilistic map of deformation to reshape its contour. Finally, we project the updated model onto a trained shape subspace to constrain deformations to be within possible object appearances. Our experiments show that the proposed algorithm significantly improves the performance of the tracker |
| DOI | 10.1109/ICIP.2006.312993 |