Pseudo-distance map transformation for interactive object tracing

Abstract

In this paper, the algorithms for interactive objects tracing on grey-scale images are proposed that is based on a pseudo-distance map (PDM). The PDM is a simplified distance map of gray-scale image and uses only that features of image and objects that are necessary to build a optimal contour. The algorithms wors fast for large gray-scale images and allows constructing a high quality contour as well as central line.