dc.contributor.author |
Luus, Francois Pierre Sarel
|
|
dc.contributor.author |
Van den Bergh, Frans
|
|
dc.contributor.author |
Maharaj, Bodhaswar Tikanath Jugpershad
|
|
dc.date.accessioned |
2013-10-08T08:25:49Z |
|
dc.date.available |
2013-10-08T08:25:49Z |
|
dc.date.issued |
2013 |
|
dc.description.abstract |
Settlement classifiers for multitemporal satellite
image analysis have to overcome numerous difficulties related
to across-date variances in viewing- and illumination geometry.
Shadow anisotropy is a prominent contributing factor in classifier
inaccuracy, so methods are introduced in this study to enable
minimum-supervision classifier design that mitigate the effects
of shadow profile differences. A segmentation-based shadow detector
is proposed that utilizes a panchromatic segment merging
algorithm with parameters that are robust against dynamic range
variances seen in multitemporal imagery. The proposed shadow
detector improves on the settlement classification accuracy
achieved by fixed threshold detection paired with shadow removal
in the presented case-study. The relationship between shadow
detection accuracy and settlement classification accuracy is investigated,
and it is shown that shadow removal produces greater
settlement accuracy improvements for across-date experiments
specifically. |
en |
dc.description.librarian |
hb2013 |
en |
dc.description.librarian |
ai2014 |
|
dc.description.sponsorship |
National Research Foundation (NRF) |
en |
dc.description.uri |
http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?reload=true&punumber=4609443 |
en |
dc.identifier.citation |
Luus, FPS, Van den Bergh, F & Maharaj, BTJ 2013, 'The effects of segmentation-based shadow removal on across-date settlement type classification of panchromatic QuickBird images', IEEE Journal of Selected Topics In Applied Earth Observations And Remote Sensing, vol. 6, no. 3, pp.1274-1285. |
en |
dc.identifier.issn |
1939-1404 (print) |
|
dc.identifier.other |
10.1109/JSTARS.2013.2248346 |
|
dc.identifier.uri |
http://hdl.handle.net/2263/31947 |
|
dc.language.iso |
en |
en |
dc.publisher |
Institute of Electrical and Electronics Engineers |
en |
dc.rights |
© 2013 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. |
en |
dc.subject |
Feature extraction |
en |
dc.subject |
Image segmentation |
en |
dc.subject |
Image texture analysis |
en |
dc.subject |
Remote sensing |
en |
dc.subject.lcsh |
Remote-sensing images |
en |
dc.subject.lcsh |
Imaging systems -- Image quality |
en |
dc.title |
The effects of segmentation-based shadow removal on across-date settlement type classification of panchromatic QuickBird images |
en |
dc.type |
Postprint Article |
en |