Direction difference in terrain features extraction

Guo, Xiaohu; Li, Rongjuan; Huang, Chen

doi:10.1117/12.838625

SPIE Proceedings

2009

DOI: 10.1117/12.838625

|View full text |Cite

Direction difference in terrain features extraction

Xiaohu Guo

Rongjuan Li

Chen Huang

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2018

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many researchers use the D-P algorithm as a topographic feature point extraction method [21]. After recognizing terrain feature points, contour directions are important references for differentiating between concave and convex feature points on a contour line [22]. Contour line direction reflects the direction of elevation change between contours.…”

mentioning

confidence: 99%

Extraction of Terrain Feature Lines from Elevation Contours Using a Directed Adjacent Relation Tree

Guo

et al. 2018

IJGI

View full text Add to dashboard Cite

The extraction of terrain feature lines is an important yet challenging problem in the processing and usage of contour lines. Most research has focused on identifying terrain feature points by using methods such as the Douglas-Peucker (D-P) algorithm and on determining contour adjacent relations for closed contour lines by using methods such as Delaunay triangulation and its dual Voronoi diagram, with few attempts made to address open contour lines and identify the direction of contour lines. Here, we propose a novel method for terrain feature line extraction based on adjacent relation trees. First, a contour adjacent relation tree is constructed. The tree is used to determine the directions of closed and open contour lines and thereby form a "directed adjacent relation tree" (DART). Terrain feature points are then extracted using the classic D-P algorithm, followed by the identification and connection of valley and ridge points via the aforementioned DART. Finally, integrity compensation for terrain feature lines is performed based on a slope extension algorithm. The effectiveness and accuracy of this method is verified by experimental results obtained from 1:10,000 topographic map data.

show abstract

mentioning

confidence: 99%

Extraction of Terrain Feature Lines from Elevation Contours Using a Directed Adjacent Relation Tree

Guo

et al. 2018

IJGI

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Direction difference in terrain features extraction

Cited by 1 publication

References 0 publications

Extraction of Terrain Feature Lines from Elevation Contours Using a Directed Adjacent Relation Tree

Extraction of Terrain Feature Lines from Elevation Contours Using a Directed Adjacent Relation Tree

Contact Info

Product

Resources

About