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Geometric Accuracy Assessment of Deimos-2 Panchromatic Stereo Pairs: Sensor Orientation and Digital Surface Model Production
dc.contributor.author | Aguilar Torres, Manuel Ángel | |
dc.contributor.author | Jiménez Lao, Rafael | |
dc.contributor.author | Nemmaoui, Abderrahim | |
dc.contributor.author | Aguilar Torres, Fernando José | |
dc.date.accessioned | 2020-12-18T08:49:30Z | |
dc.date.available | 2020-12-18T08:49:30Z | |
dc.date.issued | 2020-12-18 | |
dc.identifier.issn | 1424-8220 | |
dc.identifier.uri | http://hdl.handle.net/10835/9169 | |
dc.description.abstract | Accurate elevation data, which can be extracted from very high-resolution (VHR) satellite images, are vital for many engineering and land planning applications. In this way, the main goal of this work is to evaluate the capabilities of VHR Deimos-2 panchromatic stereo pairs to obtain digital surface models (DSM) over different land covers (bare soil, urban and agricultural greenhouse areas). As a step prior to extracting the DSM, different orientation models based on refined rational polynomial coefficients (RPC) and a variable number of very accurate ground control points (GCPs) were tested. The best sensor orientation model for Deimos-2 L1B satellite images was the RPC model refined by a first-order polynomial adjustment (RPC1) supported on 12 accurate and evenly spatially distributed GCPs. Regarding the Deimos-2 based DSM, its completeness and vertical accuracy were compared with those obtained from a WorldView-2 panchromatic stereo pair by using exactly the same methodology and semiglobal matching (SGM) algorithm. The Deimos-2 showed worse completeness values (about 6% worse) and vertical accuracy results (RMSEZ 42.4% worse) than those computed from WorldView-2 imagery over the three land covers tested, although only urban areas yielded statistically significant differences (p < 0.05). | es_ES |
dc.language.iso | en | es_ES |
dc.publisher | MDPI | es_ES |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Deimos-2 | es_ES |
dc.subject | VHR satellite images | es_ES |
dc.subject | geometric accuracy | es_ES |
dc.subject | sensor orientation model | es_ES |
dc.subject | digital surface model | es_ES |
dc.title | Geometric Accuracy Assessment of Deimos-2 Panchromatic Stereo Pairs: Sensor Orientation and Digital Surface Model Production | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/1424-8220/20/24/7234 | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |