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1. (WO2018026532) TESTING 3D IMAGING SYSTEMS

Pub. No.:    WO/2018/026532    International Application No.:    PCT/US2017/043043
Publication Date: Fri Feb 09 00:59:59 CET 2018 International Filing Date: Fri Jul 21 01:59:59 CEST 2017
IPC: G01S 5/02
G01S 11/12
G06T 7/00
G06T 7/80
Applicants: GOOGLE LLC
Inventors: LIN, Andrew Cheng-Yi
WU, Honglei
Title: TESTING 3D IMAGING SYSTEMS
Abstract:
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, relating to testing three-dimensional imaging systems. In some implementations, a system includes a mount for a three-dimensional camera, a mount for a calibration target, and a rail to which the mount for the calibration target is coupled. The movement of the mount for the calibration target is constrained to the direction extending along the rail. The system includes a processing device having logic that receives a reading from a particular three-dimensional camera coupled to the mount for the three-dimensional camera. The reading includes a distance from the three-dimensional camera to a particular calibration target coupled to the mount for the calibration target. The logic receives a measurement of an actual distance from the particular three-dimensional camera to the particular calibration target.