Samsung patents method to align camera scans with floorplans
Samsung describes a technique that uses a building's floorplan to correct the position and angle of 3D camera scans. The system filters scan data to find edges, aligns them with the floorplan, and adjusts the camera's estimated position to match the known structure.
In the filing’s own words
A method includes receiving a floorplan of a three-dimensional (3D) structure of a scene; receiving one or more imaging scans of the scene; identifying a gravity direction for the one or more imaging scans; generating, based on the gravity direction, a boundary scan by filtering out one or more points in the one or more imaging scans having horizontal projections that deviate from other points in the one or more imaging scans by a predetermined amount; aligning the boundary scan with the floorplan; extracting one or more structural elements in the one or more imaging scans; and optimizing a three-term cost function comprising a geometric term, a floor term and, a walls term by correlating points in the one or more imaging scans corresponding to the structural elements to respective points in the floorplan.
What exactly they claim (claim 1)
1. A method performed by at least one processor for floorplan-aware camera pose refinement, the method comprising: receiving a floorplan of a three-dimensional (3D) structure of a scene; receiving one or more imaging scans of the scene; identifying a gravity direction for the one or more imaging scans; generating, based on the gravity direction, a boundary scan by filtering out one or more points in the one or more imaging scans having horizontal projections that deviate from other points in the one or more imaging scans by a predetermined amount; aligning the boundary scan with the floorplan; extracting one or more structural elements in the one or more imaging scans; and optimizing a three-term cost function comprising a geometric term, a floor term and, a walls term by correlating points in the one or more imaging scans corresponding to the one or more structural elements to respective points in the floorplan.
Facts
- Company
- Samsung (SAMSUNG ELECTRONICS CO., LTD.)
- Official title
- Floorplan-aware camera pose refinement method and system
- Patent number
- US12762729B2
- Application number
- 18818324
- Filed
- Aug 28, 2024
- Granted
- Oct 13, 2026
- Inventors
- 4
- Claims
- 20
Classified under
G06T 7/70 Physics & computingMore from Samsung in AR, VR & displays
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.