CU-Net: LiDAR Depth-Only Completion With Coupled U-Net

  title={CU-Net: LiDAR Depth-Only Completion With Coupled U-Net},
  author={Yufei Wang and Yuchao Dai and Qi Liu and Peng Yang and Jiadai Sun and Bo Li},
  journal={IEEE Robotics and Automation Letters},
LiDAR depth-only completion is a challenging task to estimate dense depth maps only from sparse measurement points obtained by LiDAR. Even though the depth-only methods have been widely developed, there is still a significant performance gap with the RGB-guided methods that utilize extra color images. We find that existing depth-only methods can obtain satisfactory results in the areas where the measurement points are almost accurate and evenly distributed (denoted as normal areas), while the… 

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