An Algorithm of Boundaries Detection in Low-Contrast Radar Images of the Earth

Abstract

Abstract:One of the problems of radar images analysis of the Earth is the detection of boarders between areas with different normalized effective radar cross-sections. In this paper, we propose a computationally effective quasi-optimal algorithm capable for building approximation of such boarders with straight line segments for low-contrast radar images and arbitrary line for high-contrast radar images. To achieve computational efficiency we apply image segmentation and later approximation. Efficiency of the proposed algorithm was examined on a number of computer generated radar image fragments including lowcontrast radar images. Proposed algorithm can be effectively implemented using modern parallel computation systems.