Abstract
Extraction of valley lines from Digital Elevation Model (DEM) is a hot research spot in geological and hydrological field. Based on grid DEM, a valley lines extraction method was proposed and implemented by IDL&ArcGIS Engine mix programming. First the initial valley line extraction was implemented in IDL based on its morphological characteristics. Second the original valley line data was export into ArcGIS Engine, and combined with hydrological features, a further valley line extraction was made so as to generate the final valley line information. Finally a validation was proposed to export the valley line data into Google Earth to overlay with the image. The experiment result demonstrates the correctness of the algorithm.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
