Search International and National Patent Collections

1. (WO2018195986) CALIBRATION OF LASER SENSORS

Pub. No.:    WO/2018/195986    International Application No.:    PCT/CN2017/082584
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Sat Apr 29 01:59:59 CEST 2017
IPC: G06T 7/00
G06T 3/00
G01S 17/02
Applicants: SZ DJI TECHNOLOGY CO., LTD.
Inventors: WU, Kanzhi
MA, Lu
Title: CALIBRATION OF LASER SENSORS
Abstract:
A method for calibrating laser sensors carried by a mobile platform, includes determining an overlapping region of point cloud data generated by laser sensors, comparing surface features of the point clouds within the overlapping region, and generating calibration rules based thereon. A method for automatically detecting a disturbance to an emitter/detector unit carried by a mobile platform, comprising: transforming first and second point cloud information into a first and a second point cloud in a reference system associated with the mobile platform, the first and a second point cloud information obtained from the emitter/detector unit at a first and a second point in time; determining an overlapping region between the first and second point clouds; comparing surface attributes of the first and second point clouds in the overlapping region; detecting a disturbance to the emitter/detector unit based at least in part on comparing the surface attributes.