Next Article in Journal
A Multiresolution Grid Structure Applied to Seafloor Shape Modeling
Previous Article in Journal
Graph-Based Matching of Points-of-Interest from Collaborative Geo-Datasets
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessShort Note
ISPRS Int. J. Geo-Inf. 2018, 7(3), 118; https://doi.org/10.3390/ijgi7030118

Validation of Pleiades Tri-Stereo DSM in Urban Areas

1
Foundation for Research and Technology, Institute of Applied and Computational Mathematics, Remote Sensing Laboratory, 700 13 Heraklion, Greece
2
Geosystems Hellas S.A., 144 52 Athens, Greece
*
Author to whom correspondence should be addressed.
Received: 4 January 2018 / Revised: 12 March 2018 / Accepted: 14 March 2018 / Published: 15 March 2018
Full-Text   |   PDF [6625 KB, uploaded 3 May 2018]   |  

Abstract

We present an accurate digital surface model (DSM) derived from high-resolution Pleiades-1B 0.5 m panchromatic tri-stereo images, covering an area of 400 km2 over the Athens Metropolitan Area. Remote sensing and photogrammetry tools were applied, resulting in a 1 m × 1 m posting DSM over the study area. The accuracy of the produced DSM was evaluated against measured elevations by a differential Global Positioning System (d-GPS) and a reference DSM provided by the National Cadaster and Mapping Agency S.A. Different combinations of stereo and tri-stereo images were used and tested on the quality of the produced DSM. Results revealed that the DSM produced by the tri-stereo analysis has a root mean square error (RMSE) of 1.17 m in elevation, which lies within the best reported in the literature. On the other hand, DSMs derived by standard analysis of stereo-pairs from the same sensor were found to perform worse. Line profile data showed similar patterns between the reference and produced DSM. Pleiades tri-stereo high-quality DSM products have the necessary accuracy to support applications in the domains of urban planning, including climate change mitigation and adaptation, hydrological modelling, and natural hazards, being an important input for simulation models and morphological analysis at local scales. View Full-Text
Keywords: tri-stereo; DSM; validation; urban surface morphology; line profile tri-stereo; DSM; validation; urban surface morphology; line profile
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Panagiotakis, E.; Chrysoulakis, N.; Charalampopoulou, V.; Poursanidis, D. Validation of Pleiades Tri-Stereo DSM in Urban Areas. ISPRS Int. J. Geo-Inf. 2018, 7, 118.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
ISPRS Int. J. Geo-Inf. EISSN 2220-9964 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top