Publications:Nonlinear Optimization of Multimodal Two-Dimensional Map Alignment With Application to Prior Knowledge Transfer
From ISLAB/CAISR
| Title | Nonlinear Optimization of Multimodal Two-Dimensional Map Alignment With Application to Prior Knowledge Transfer |
|---|---|
| Author | Saeed Gholami Shahbandi and Martin Magnusson and Karl Iagnemma |
| Year | 2018 |
| PublicationType | Journal Paper |
| Journal | IEEE Robotics and Automation Letters |
| HostPublication | |
| Conference | 2018 IEEE International Conference on Robotics and Automation, Brisbane, Australia, May 21-25, 2018 |
| DOI | http://dx.doi.org/10.1109/LRA.2018.2806439 |
| Diva url | http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:1197163 |
| Abstract | We propose a method based on a nonlinear transformation for nonrigid alignment of maps of different modalities, exemplified with matching partial and deformed two-dimensional maps to layout maps. For two types of indoor environments, over a dataset of 40 maps, we have compared the method to state-of-the-art map matching and nonrigid image registration methods and demonstrate a success rate of 80.41% and a mean point-to-point alignment error of 1.78 m, compared to 31.9% and 10.7 m for the best alternative method. We also propose a fitness measure that can quite reliably detect bad alignments. Finally, we show a use case of transferring prior knowledge (labels/segmentation), demonstrating that map segmentation is more consistent when transferred from an aligned layout map than when operating directly on partial maps (95.97% vs. 81.56%). © 2018 IEEE. |
