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- W4289666508 abstract "In this paper we propose a novel approach to estimate dense optical flow from sparse lidar data acquired on an autonomous vehicle. This is intended to be used as a drop-in replacement of any image-based optical flow system when images are not reliable due to e.g. adverse weather conditions or at night. In order to infer high resolution 2D flows from discrete range data we devise a three-block architecture of multiscale filters that combines multiple intermediate objectives, both in the lidar and image domain. To train this network we introduce a dataset with approximately 20K lidar samples of the Kitti dataset which we have augmented with a pseudo ground-truth image-based optical flow computed using FlowNet2. We demonstrate the effectiveness of our approach on Kitti, and show that despite using the low-resolution and sparse measurements of the lidar, we can regress dense optical flow maps which are at par with those estimated with image-based methods." @default.
- W4289666508 created "2022-08-03" @default.
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- W4289666508 date "2018-08-30" @default.
- W4289666508 modified "2023-09-25" @default.
- W4289666508 title "Hallucinating Dense Optical Flow from Sparse Lidar for Autonomous Vehicles" @default.
- W4289666508 doi "https://doi.org/10.48550/arxiv.1808.10542" @default.
- W4289666508 hasPublicationYear "2018" @default.
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