Tracking complex primitives in an image sequence

• Published in: Pattern Recognition, 1994 12th International Conference On. Vol. 1 Vol. 1; pp. 426 - 431 vol.1
• Main Authors: Bascle, B., Bouthemy, P., Deriche, R., Meyer, F.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 1994
• Subjects: Image analysis; Image edge detection; Image segmentation; Image sequences; Motion analysis; Motion detection; Motion estimation; Object detection; Spline; Tracking
• ISBN: 0818662654; 9780818662652
• DOI: 10.1109/ICPR.1994.576315

This paper describes a new approach to track complex primitives along image sequences - integrating snake-based contour tracking and region-based motion analysis. First, a snake tracks the region outline and performs segmentation. Then the motion of the extracted region is estimated by a dense analysis of the apparent motion over the region, using spatio-temporal image gradients. Finally, this motion measurement is filtered to predict the region location 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.