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- W4294718468 abstract "Motivated by the success of fractional pixel motion in video coding, we explore the design of motion estimation with fractional-voxel resolution for compression of color attributes of dynamic 3D point clouds. Our proposed block-based fractional-voxel motion estimation scheme takes into account the fundamental differences between point clouds and videos, i.e., the irregularity of the distribution of voxels within a frame and across frames. We show that motion compensation can benefit from the higher resolution reference and more accurate displacements provided by fractional precision. Our proposed scheme significantly outperforms comparable methods that only use integer motion. The proposed scheme can be combined with and add sizeable gains to state-of-the-art systems that use transforms such as Region Adaptive Graph Fourier Transform and Region Adaptive Haar Transform." @default.
- W4294718468 created "2022-09-06" @default.
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- W4294718468 date "2022-01-31" @default.
- W4294718468 modified "2023-09-30" @default.
- W4294718468 title "Fractional Motion Estimation for Point Cloud Compression" @default.
- W4294718468 doi "https://doi.org/10.48550/arxiv.2202.00172" @default.
- W4294718468 hasPublicationYear "2022" @default.
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