Tracking complex primitives in an image sequence
- 17 December 2002
- proceedings article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 1, 426-431
- https://doi.org/10.1109/icpr.1994.576315
Abstract
This paper describes a new approach to track complex primitivesalongimage sequences -integratingsnake-based contour tracking and region-based motion analysis. First, a snake tracks the region outline and performs segmenta- tion. Then the motion of the extracted region is estimated by a dense analysis of the apparent motion over the re- gion, using spatio-temporal image gradients. Finally, this motion measurement is filtered to predict the region loca- tion in the next frame, and thus to guide (i.e. to initialize) the tracking snake in the next frame. Therefore, these two approaches collaborate and exchange information to overcome the limitations of each of them. The method is illustrated by experimental results on real images.Keywords
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