Various Methods of Road Extraction from Satellite Images A Review

Abstract

Extraction of roads from the satellite images is a crucial part of the image segmentation. Extraction of roads is essential because number of applications are based on road information like vehicle navigation, transportation management, tourism, industrial development, urban or rural development. Images used in road extraction are mostly satellite images or aerial images. As the satellite images are of high resolution, therefore there are many obstacles like a shadow of trees and buildings, vehicles, interference from the surroundings, broken roads etc. curb the automatic extraction of the roads. In this paper, the review of techniques, algorithms and methodologies used for automatic detection of roads is presented.