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Self-Supervised Learning for Monocular Depth Estimation from Aerial Imagery

Hermann, Max 1; Ruf, Boitumelo 1; Weinmann, Martin 1; Hinz, Stefan 1
1 Institut für Photogrammetrie und Fernerkundung (IPF), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

Supervised learning based methods for monocular depth estimation usually require large amounts of extensively annotated training data. In the case of aerial imagery, this ground truth is particularly difficult to acquire. Therefore, in this paper, we present a method for self-supervised learning for monocular depth estimation from aerial imagery that does not require annotated training data. For this, we only use an image sequence from a single moving camera and learn to simultaneously estimate depth and pose information. By sharing the weights between pose and depth estimation, we achieve a relatively small model, which favors real-time application. We evaluate our approach on three diverse datasets and compare the results to conventional methods that estimate depth maps based on multi-view geometry. We achieve an accuracy δ1:25 of up to 93.5 %. In addition, we have paid particular attention to the generalization of a trained model to unknown data and the self-improving capabilities of our approach. We conclude that, even though the results of monocular depth estimation are inferior to those achieved by conventional methods, they are well suited to provide a good initialization for methods that rely on image matching or to provide estimates in regions where image matching fails, e.g. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000130854
Veröffentlicht am 24.03.2021
DOI: 10.5194/isprs-annals-V-2-2020-357-2020
Zitationen: 6
Zitationen: 13
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Photogrammetrie und Fernerkundung (IPF)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 2194-9050
KITopen-ID: 1000130854
Erschienen in ISPRS annals
Verlag Copernicus Publications
Band V-2-2020
Seiten 357–364
Bemerkung zur Veröffentlichung ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial, Information Sciences, Volume V-2-2020, 2020 XXIV ISPRS Congress
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