Lidar sensor validation

US11609315B2 · kind B2 · utility

Assignee

• GM Cruise Holdings LLC · US

Inventors

• Ankit Rohatgi · San Francisco, US
• Peter Megson · San Francisco, US
• Mariana Rihl · San Francisco, US
• Adam Cadien · San Francisco, US
• Robert Vets · Seattle, US

Key dates

• Filing date: Aug 16, 2019
• Grant date: Mar 21, 2023
• Expiry date: Dec 28, 2041

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60W2420/408
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Various aspects of the subject technology relate to a lidar validation system. The lidar validation system is configured to acquire one or more lidar point clouds from a lidar unit, wherein the lidar unit comprises one or more lasers, and wherein each point cloud is a representation of a scene according to a laser in the lidar unit, the scene comprising a fiducial target. The lidar validation system is configured to generate, based on points in the one or more point clouds, a target cloud that correspond to the fiducial target, perform a rigid body processing to minimize a sum of distances from each point in the target cloud to the fiducial target, and generate lidar validation measurements based on the distances from each point in the target cloud to the fiducial target.