RT Journal Article
T1 DEM shading method for the correction of pseudoscopic effect on multi-platform satellite imagery
A1 Gil Docampo, María de la Luz
A1 Arza García, Marcos
A1 Ortiz Sanz, Juan
A1 Ávila Búa, Alejandro
K1 Pseudoscopic effect
K1 FTPP correction
K1 Relief perception
K1 DEM shading
AB The pseudoscopic effect in satellite imagery causes perception problems for rugged  terrain. The topographic relief is perceived in reverse in images with southeast  illumination because of the position of land shadows and the mechanisms of human  vision and depth perception. This article presents a correction method for false topographic perception phenomena. Superposition of the orthoimage and the correctly  shaded digital elevation model (DEM) provides the correct three-dimensional visualization of the relief. This study demonstrates the applicability of this processing  technique for the correction of such effects to provide cartography with a more useful  interpretation. The resolution of the DEM employed should be in accordance with the  spatial resolution of each image. The opacity level proposed for the overlapping DEM  is 50%, 30% and 45% for each image type. The selection of the most appropriate local  incidence angle is determined by the level of terrain roughness in the work area.
PB Taylor & Francis Group
SN 1548-1603
YR 2014
FD 2014-12-13
LK http://hdl.handle.net/10347/18622
UL http://hdl.handle.net/10347/18622
LA eng
NO Gil, M. L., Arza, M., Ortiz, J., & Ávila, A. (2014). DEM shading method for the correction of pseudoscopic effect on multi-platform satellite imagery. GIScience & remote sensing, 51(6), 630-643.
NO This is an Accepted Manuscript of an article published by Taylor & Francis in GIScience & Remote Sensing  on 2014, available online: http://www.tandfonline.com/10.1080/15481603.2014.988433
NO We want to thank the Galician Territorial Information System (SITGA) for the images and thecartographic material provided for the realization of this work
DS Minerva
RD 22 abr 2026