METHOD AND DEVICE FOR ENCODING/DECODING POINT CLOUD GEOMETRIC DATA USING AZIMUTH CODING MODE Russian patent published in 2024 - IPC H04N19/597 H04N19/13 H04N19/167 H04N19/96

Abstract RU 2830464 C2

FIELD: physics.

SUBSTANCE: invention relates to encoding and decoding point cloud geometric data. Result is achieved due to improved selection of contexts used for entropy coding of bits b_d. Context selection is based on the apparent angle (AA_d) corresponding to the interval along the azimuthal coding direction and representing the point cloud point coordinate. Visible angle (AA_d) is an estimate of the angle of the interval when observing from a sensor which has registered the point at a specific depth.

EFFECT: improved efficiency of context-based entropy coding used in azimuth coding mode.

24 cl, 19 dwg

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RU 2 830 464 C2

Authors

Gao Shuo

Dates

2024-11-19—Published

2021-04-09—Filed