Abstract: The gradient vector flow (GVF) algorithm has been extensively used as a tool to extract the boundary of objects in images. However, its performance significantly degrades when the images ...
Abstract: Snakes, or active contour models, have been widely used in image segmentation. In this paper, a new type of dynamic external force for snakes named directional gradient vector flow (DGVF) is ...
A subset of the true optical flow can be extracted by constructing a vector field that represents image gradients and then tracking vectors in this vector field. This pseudo-flow (p-flow) subset ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results