Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

A novel rapid method for viewshed computation on DEM through max-pooling and min-expected height

Tools
- Tools
+ Tools

Pan, Zhibin, Tang, Jin, Tjahjadi, Tardi, Wu, Zhihu and Xiao, Xiaoming (2020) A novel rapid method for viewshed computation on DEM through max-pooling and min-expected height. ISPRS International Journal of Geo-Information, 9 (11). 633. doi:10.3390/ijgi9110633 ISSN 2220-9964.

[img]
Preview
PDF
WRAP-viewshed-computation-digital-elevation-model-(DEM)-plays-important-role-geographic-information-system-Tjahjadi-2020.pdf - Published Version - Requires a PDF viewer.
Available under License Creative Commons Attribution 4.0.

Download (4Mb) | Preview
Official URL: http://dx.doi.org/10.3390/ijgi9110633

Request Changes to record.

Abstract

Viewshed computation of a digital elevation model (DEM) plays an important role in a geographic information system, but the required high computational time is a serious problem for a practical application. Hitherto, the mainstream methods of viewshed computing include line-of-sight method, reference planes method, etc. Based on these classical algorithms, a new algorithm for viewshed computation is proposed in this paper: the Matryoshka doll algorithm. Through a pooling operation, the minimum expected height of the DEM is introduced as max-pooling with minimum expected height in the viewshed computing optimization. This is to increase the efficiency and adaptability of the computation of the visibility range. The experimental results demonstrate that the algorithm has obvious advantages in computing speed, but with the accuracy only slightly reduced.

Item Type: Journal Article
Subjects: G Geography. Anthropology. Recreation > G Geography (General)
G Geography. Anthropology. Recreation > GA Mathematical geography. Cartography
Q Science > QA Mathematics
Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software
Divisions: Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group)
Library of Congress Subject Headings (LCSH): Digital elevation models, Digital elevation models -- Computer simulation , Geographic information systems, Algorithms , Digital elevation models -- Mathematical models
Journal or Publication Title: ISPRS International Journal of Geo-Information
Publisher: M D P I AG
ISSN: 2220-9964
Official Date: 26 October 2020
Dates:
DateEvent
26 October 2020Published
23 October 2020Accepted
Volume: 9
Number: 11
Article Number: 633
DOI: 10.3390/ijgi9110633
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access (Creative Commons)
Date of first compliant deposit: 5 November 2020
Date of first compliant Open Access: 6 November 2020

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics

twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us