Luminar Technologies, Inc.

Luminar, LLC

Amey Sutavani

Benjamin Englard

Vahid R Ramezani

Shubham C Khilari

Mohamed Ahmad

Masood Taheri

Dominik Nuss

Scott Walter

Lekha Walajapet Mohan

Flavian Pegado

Scott Ryvola

A system and method are described for assessing accuracy of a virtual horizon generated by a vehicle-based lidar system as the vehicle traverses a route of travel. Travel route topology data is obtained by a vehicle vehicle-mounted global positioning system-assisted inertial measurement unit (GPS/IMU) data. A reference virtual horizon at points along the route of travel is obtained from the GPS/IMU data and is compared with the virtual horizon generated by the lidar system for the same points to assess the accuracy of the virtual horizon generated by the lidar system.

System and method for validation of lidar-generated horizon estimation

A system includes multiple sensors having different, and overlapping, fields of regard and a controller communicatively coupled to sensors. Methods for calibrating the multiple sensors include obtaining data from the sensors, determining optimized transformation parameters for at least one of the sensors, and transforming the data from one sensor projection plane to the other sensor projection plane. The method is an iterative process that uses the metric of mutual information between the data sets, and transformed data sets of the sensors, to determine an optimized set of transformation parameters. The sensors may be a plurality of lidar sensors, a camera and a lidar sensor, or other sets of sensors.

Calibration of sensor systems

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Mountain View, CA, United States of America

Amey Sutavani