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- W4306291233 abstract "Point cloud compression plays a crucial role in reducing the huge cost of data storage and transmission. However, distortions can be introduced into the decompressed point clouds due to quantization. In this paper, we propose a novel learning-based post-processing method to enhance the decompressed point clouds. Specifically, a voxelized point cloud is first divided into small cubes. Then, a 3D convolutional network is proposed to predict the occupancy probability for each location of a cube. We leverage both local and global contexts by generating multi-scale probabilities. These probabilities are progressively summed to predict the results in a coarse-to-fine manner. Finally, we obtain the geometry-refined point clouds based on the predicted probabilities. Different from previous methods, we deal with decompressed point clouds with huge variety of distortions using a single model. Experimental results show that the proposed method can significantly improve the quality of the decompressed point clouds, achieving 9.30dB BDPSNR gain on three representative datasets on average." @default.
- W4306291233 created "2022-10-15" @default.
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- W4306291233 date "2022-04-29" @default.
- W4306291233 modified "2023-09-27" @default.
- W4306291233 title "Deep Geometry Post-Processing for Decompressed Point Clouds" @default.
- W4306291233 doi "https://doi.org/10.48550/arxiv.2204.13952" @default.
- W4306291233 hasPublicationYear "2022" @default.
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