Patent · US Active

Multiple-pulses-in-air laser scanning system with ambiguity resolution based on range probing and 3D point analysis

US11513197B2 · kind B2 · utility

1Cited by

8References

13Claims

0Family size

Assignee

LEICA GEOSYSTEMS AG · CH

Inventors

Quan Yang · Beijing, CN
Zhigang Pan · Rockville, US
James Chester Sanders, III · Nürnberg, DE

Key dates

Filing date	Oct 15, 2018
Grant date	Nov 29, 2022
Priority date	—
Expiry date	Aug 15, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG01S17/89
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A multiple-pulses-in-air (MPiA) laser scanning system, wherein the MPiA problem is addressed in that an MPiA assignment of return pulses to send pulses of a laser scanner is based on range tracking and range probing at intermittent points in time. Each range probing comprises a time-of-flight arrangement which is constructed to be free of the MPiA problem. The invention further relates to an MPiA laser scanning system, wherein an MPiA ambiguity within a time series of return pulses, is converted into 3D point cloud space, which provides additional information from the spatial neighborhood of the points in question to enable MPiA disambiguation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.