Image segmentation based on region merging technique
Zhiping Li, Chuanxian Jiang, Zhi Li, Zejun Zhang · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2015
This paper presents an efficient algorithm to segment Synthetic Aperture Radar (SAR) image. Multi-direction ratio edge detector is used to capture the locally directional variation information of a SAR image and construct ratio edge strength map (RESM) of the SAR image. An efficient hierarchical region merging procedure based on the region adjacency graph (RAG) representation of the image regions is proposed. Experimental results show that the proposed method is outperforming a widely used SAR image segmentation approach.