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1.发明申请METHOD AND APPARATUS FOR NEAR-LOSSLESS COMPRESSION AND DECOMPRESSION OF 3D MESHES AND POINT CLOUDS 有权三维网格和点云的近距离压缩和分解的方法与装置公开(公告)号：US20160086353A1
公开(公告)日：2016-03-24
申请号：US14495224
申请日：2014-09-24
发明人： Niko Lukac , Borut Zalik
IPC分类号： G06T9/00 , G06T17/00 , G06T17/20 , G06T11/00 , H04N19/61 , H04N19/96 , H04N19/13 , G06T15/20 , G06T15/06
摘要： Fast near-lossless compression includes four steps: voxelization of the 3D geometry, decomposing the 3D voxel space into consecutive slices, encoding each slice with chain codes, and compressing the chain code with entropy coding. The decompression works by applying the aforementioned steps in inverse order. Smoothing over the voxels' centers is applied afterwards in order to reconstruct the input 3D points. Optionally 3D mesh is reconstructed over the approximate point cloud in order to obtain the original geometric object. The quality of the compression/decompression is controlled by resolution of the 3D voxel grid.
摘要翻译： 快速近无损压缩包括四个步骤：3D几何的体素化，将3D体素空间分解为连续的切片，用链码对每个切片进行编码，并用熵编码压缩链码。 解压缩通过以相反的顺序应用上述步骤而起作用。 随后应用在体元中心的平滑，以便重建输入的3D点。 可选地，在近似点云上重建3D网格，以便获得原始的几何对象。 压缩/解压缩的质量由3D体素网格的分辨率控制。
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2.发明授权公开(公告)号：US09734595B2
公开(公告)日：2017-08-15
申请号：US14495224
申请日：2014-09-24
发明人： Niko Lukac , Borut Zalik
摘要： Fast near-lossless compression includes four steps: voxelization of the 3D geometry, decomposing the 3D voxel space into consecutive slices, encoding each slice with chain codes, and compressing the chain code with entropy coding. The decompression works by applying the aforementioned steps in inverse order. Smoothing over the voxels' centers is applied afterwards in order to reconstruct the input 3D points. Optionally 3D mesh is reconstructed over the approximate point cloud in order to obtain the original geometric object. The quality of the compression/decompression is controlled by resolution of the 3D voxel grid.
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