Next Article in Journal
Orthogonal Equations of Multi-Spectral Satellite Imagery for the Identification of Un-Excavated Archaeological Sites
Previous Article in Journal
Combined Spatial and Temporal Effects of Environmental Controls on Long-Term Monthly NDVI in the Southern Africa Savanna
Remote Sens. 2013, 5(12), 6539-6559; doi:10.3390/rs5126539
Article

Spatial Quality Assessment of Pan-Sharpened High Resolution Satellite Imagery Based on an Automatically Estimated Edge Based Metric

1,* , 1
 and
2
1 Department of Geomatics, Faculty of Engineering, University of Tehran, North Amir Abaad St., Tehran 14395-515, Iran 2 Department of Photogrammetry and Image Analysis, Remote Sensing Technology Institute, Aerospace Centre (DLR), Oberpfaffenhofen, D-82234 Weßling, Germany
* Author to whom correspondence should be addressed.
Received: 6 September 2013 / Revised: 23 September 2013 / Accepted: 19 October 2013 / Published: 3 December 2013
View Full-Text   |   Download PDF [5639 KB, uploaded 19 June 2014]   |   Browse Figures
SciFeed

Abstract

Most of the existing pan-sharpening quality assessment methods consider only the spectral quality and there are just few investigations, which concentrate on spatial characteristics. Spatial quality of pan-sharpened images is vital in elaborating the capability of object extraction, identification, or reconstruction, especially regarding man-made objects and their application for large scale mapping in urban areas. This paper presents an Edge based image Fusion Metric (EFM) for spatial quality evaluation of pan-sharpening in high resolution satellite imagery. Considering Modulation Transfer Function (MTF) as a precise measurement of edge response, MTFs of pan-sharpened images are assessed and compared to those obtained from the original multispectral or panchromatic images. Spatial quality assessment of pan-sharpening is done by comparison of MTF curves of the pan-sharpened and reference images. The capability of the proposed method is evaluated by quality assessment of two different residential and industrial urban areas of WorldView-2 pan-sharpened images. Obtained results clearly show the wide spatial discrepancy in quality of Pan-sharpened images, resulting from different fusion methods, and confirm the need for spatial quality assessment of fused products. The results also prove the capability of the proposed EFM as a powerful tool for evaluation and comparison of different image fusion techniques and products.
Keywords: fusion; pan-sharpening; high resolution satellite imagery; quality as assessment; edge-based fusion; pan-sharpening; high resolution satellite imagery; quality as assessment; edge-based
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Share & Cite This Article

Further Mendeley | CiteULike
Export to BibTeX |
EndNote |
RIS
MDPI and ACS Style

Javan, F.D.; Samadzadegan, F.; Reinartz, P. Spatial Quality Assessment of Pan-Sharpened High Resolution Satellite Imagery Based on an Automatically Estimated Edge Based Metric. Remote Sens. 2013, 5, 6539-6559.

View more citation formats

Related Articles

Article Metrics

For more information on the journal, click here

Comments

[Return to top]
Remote Sens. EISSN 2072-4292 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert