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Weighted Iterative CD-Spline for Mitigating Occlusion Effects on Building Boundary Regularization Using Airborne LiDAR Data
| Content Provider | MDPI |
|---|---|
| Author | Santos, Renato César dos Habib, Ayman F. Galo, Mauricio |
| Copyright Year | 2022 |
| Description | Building occlusions usually decreases the accuracy of boundary regularization. Thus, it is essential that modeling methods address this problem, aiming to minimize its effects. In this context, we propose a weighted iterative changeable degree spline (WICDS) approach. The idea is to use a weight function for initial building boundary points, assigning a lower weight to the points in the occlusion region. As a contribution, the proposed method allows the minimization of errors caused by the occlusions, resulting in a more accurate contour modeling. The conducted experiments are performed using both simulated and real data. In general, the results indicate the potential of the WICDS approach to model a building boundary with occlusions, including curved boundary segments. In terms of $F_{score}$ and PoLiS, the proposed approach presents values around 99% and 0.19 m, respectively. Compared with the previous iterative changeable degree spline (ICDS), the WICDS resulted in an improvement of around 6.5% for completeness, 4% for $F_{score}$, and 0.24 m for the PoLiS metric. |
| Starting Page | 6440 |
| e-ISSN | 14248220 |
| DOI | 10.3390/s22176440 |
| Journal | Sensors |
| Issue Number | 17 |
| Volume Number | 22 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-08-26 |
| Access Restriction | Open |
| Subject Keyword | Sensors Imaging Science Remote Sensing Boundary Modeling Lidar Vegetation Occlusion Urban Application |
| Content Type | Text |
| Resource Type | Article |
