The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 2024
Filed:
Feb. 19, 2020
Blackberry Limited, Waterloo, CA;
Sébastien Lasserre, Thorigné-Fouillard, FR;
Jonathan Taquet, Talensac, FR;
BlackBerry Limited, Waterloo, CA;
Abstract
Methods and devices for coding point clouds using direct coding mode to code coordinates of a point within a sub-volume associated with a current node instead of a pattern of occupancy for child nodes. When direct coding is applied to two or more points in the sub-volume, the points are ordered based on one of their respective coordinate values in binary and pairwise coding of those coordinate values is carried out on a bit-by-bit basis starting from the most significant bit position. For example, the coordinate values relate to a direction in the Cartesian coordinate system, the location of the first point is represented by an x-direction coordinate value, a y-direction coordinate value and a z-direction coordinate value. The pairwise coding includes coding whether the bits are the same and, if so, coding the bit value.