Liu, Chao-Jung, Krylov, Vladimir A, Kane, Paul, Kavanagh, Geraldine and Dahyot, Rozenn (2020) IM2ELEVATION: Building Height Estimation from Single-View Aerial Imagery. Remote Sensing, 12 (17). pp. 1-22. ISSN 2072-4292
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Abstract
Estimation of the Digital Surface Model (DSM) and building heights from single-view aerial
imagery is a challenging inherently ill-posed problem that we address in this paper by resorting to
machine learning. We propose an end-to-end trainable convolutional-deconvolutional deep neural
network architecture that enables learning mapping from a single aerial imagery to a DSM for
analysis of urban scenes. We perform multisensor fusion of aerial optical and aerial light detection
and ranging (Lidar) data to prepare the training data for our pipeline. The dataset quality is key to
successful estimation performance. Typically, a substantial amount of misregistration artifacts are
present due to georeferencing/projection errors, sensor calibration inaccuracies, and scene changes
between acquisitions. To overcome these issues, we propose a registration procedure to improve Lidar
and optical data alignment that relies on Mutual Information, followed by Hough transform-based
validation step to adjust misregistered image patches. We validate our building height estimation
model on a high-resolution dataset captured over central Dublin, Ireland: Lidar point cloud of
2015 and optical aerial images from 2017. These data allow us to validate the proposed registration
procedure and perform 3D model reconstruction from single-view aerial imagery. We also report
state-of-the-art performance of our proposed architecture on several popular DSM estimation datasets.
Item Type: | Article |
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Keywords: | building height estimation; digital surface model; optical aerial imagery; aerial Lidar; image coregistration; convolutional neural networks; |
Academic Unit: | Faculty of Science and Engineering > Computer Science Faculty of Science and Engineering > Research Institutes > Hamilton Institute |
Item ID: | 15104 |
Identification Number: | 10.3390/rs12172719 |
Depositing User: | Rozenn Dahyot |
Date Deposited: | 07 Dec 2021 16:13 |
Journal or Publication Title: | Remote Sensing |
Publisher: | MDPI |
Refereed: | Yes |
Related URLs: | |
URI: | https://mural.maynoothuniversity.ie/id/eprint/15104 |
Use Licence: | This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here |
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