Methods and devices for lossy coding of point cloud occupancy

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United States of America Patent

PATENT NO 11258458
SERIAL NO

17258839

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Abstract

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Methods and devices for lossy encoding of point clouds. Rate-distortion optimization is used in coding an occupancy pattern for a sub-volume to determine whether to invert any of the bits of the occupancy pattern. The assessment may be a greedy evaluation of whether to invert bits in the coding order. Inverting a bit of the occupancy pattern amounts to adding or removing a point from the point cloud. A distortion metric may measure distance between the point added or removed and its nearest neighbouring point.

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Patent Owner(s)

  • BLACKBERRY LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Flynn, David Darmstadt, DE 222 11227
Lasserre, Sébastien Thorigné-Fouillard, FR 41 218

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