期刊
2018 INTERNATIONAL CONFERENCE ON 3D VISION (3DV)
卷 -, 期 -, 页码 52-60出版社
IEEE
DOI: 10.1109/3DV.2018.00017
关键词
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Convolutional neural networks are designed for dense data, but vision data is often sparse (stereo depth, point clouds, pen stroke, etc.). We present a method to handle sparse depth data with optional dense RGB, and accomplish depth completion and semantic segmentation changing only the last layer. Our proposal efficiently learns sparse features without the need of an additional validity mask. We show how to ensure network robustness to varying input sparsities. Our method even works with densities as low as 0.8% (8 layer lidar), and outperforms all published state-of-the-art on the Kitti depth completion benchmark.
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