Performance comparison of different inpainting algorithms for accurate DTM generation

Bulent Ayhan; Chiman Kwan; Jude Larkin; Liyun Kwan; Dimitrios Skarlatos; Marinos Vlachos

doi:10.1117/12.2557824

21 April 2020 Performance comparison of different inpainting algorithms for accurate DTM generation

Bulent Ayhan, Chiman Kwan, Jude Larkin, Liyun Kwan, Dimitrios Skarlatos, Marinos Vlachos

Author Affiliations +

Proceedings Volume 11398, Geospatial Informatics X; 113980I (2020) https://doi.org/10.1117/12.2557824
Event: SPIE Defense + Commercial Sensing, 2020, Online Only

Abstract

To accurately extract digital terrain model (DTM), it is necessary to remove heights due to vegetation such as trees and shrubs and other manmade structures such as buildings, bridges, etc. from the digital surface model (DSM). The resulting DTM can then be used for construction planning, land surveying, etc. Normally, the process of extracting DTM involves two steps. First, accurate land cover classification is required. Second, an image inpainting process is needed to fill in the missing pixels due to trees, buildings, bridges, etc. In this paper, we focus on the second step of using image inpainting algorithms for terrain reconstruction. In particular, we evaluate seven conventional and deep learning based inpainting algorithms in the literature using two datasets. Both objective and subjective comparisons were carried out. It was observed that some algorithms yielded slightly better performance than others.

Citation Download Citation

Bulent Ayhan, Chiman Kwan, Jude Larkin, Liyun Kwan, Dimitrios Skarlatos, and Marinos Vlachos "Performance comparison of different inpainting algorithms for accurate DTM generation", Proc. SPIE 11398, Geospatial Informatics X, 113980I (21 April 2020); https://doi.org/10.1117/12.2557824

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