Semi-automatic Road Extraction from High-Resolution Remote Sensing Image: Review and Prospects

Road extraction is one of the most active research fields in information extraction from high-resolution remote sensing images. It is not only of great theoretical value, but also of a broad prospect. This paper describes the general approaches of Semi-Automated Road Extraction, presents the latest research work and the typical methods from all over the world and analyzes its characteristics. Finally the research fields of Semi-Automated Road Extraction studies are also recommended.