Parametric active contours for object tracking based on matching degree image of object contour points

Serial slice image segmentation of digital human based on adaptive geometric active contour tracking

“…The continuity is taken as the deformation of temporal sequential images on an identical slice, so the serial slices of digital human can be segmented with the geometric active contour tracking method. A parametric active contour model [16], proposed for object tracking, was applied to brain stem segmentation of Chinese visible human datasets. Since the parametric active contour model tackles the segmentation problem by considering an object boundary as a single and connected structure, the previous model cannot segment several objects simultaneously or the objects with topological changes.…”

“…To overcome the deficiencies of the model [16], we propose an adaptive geometric active contour model for the segmentation of digital human data in this paper. The construction of the feature image is improved by incorporating the region statistical information into the matching degree image.…”

“…In addition, the traditional edge-based geometric active contour model is improved to adaptively evolve the curve in any direction, not in the traditional single direction (inward or outward). The proposed model builds considerably on the previous model [16], and extends and improves the model. By comparing with the model [16], the new model is more robust (such as Figs.…”

“…The proposed model builds considerably on the previous model [16], and extends and improves the model. By comparing with the model [16], the new model is more robust (such as Figs. 13 and 14) and can handle the topological changes automatically (such as Figs.…”

Improving parametric active contours by using attracting point distance map

“…For many applications, computational burden is a critical aspect. This exigency favours selection of fast methods like the parametric snakes [5,19]. This aspect is even more valuable for multi-object segmentation [9].…”