Caterpillar Inc.
Methods and systems for calibrating sensors

Abstract:

A method for calibrating sensors devices mounted on a machine is disclosed. The method includes transforming a first 3D point cloud to generate a transformed first 3D point cloud based on an alignment of the first 3D point cloud with a 3D model of the machine. The first 3D point cloud includes 3D point cloud of one or more features of a terrain around the machine, and the machine. The method further includes aligning a second 3D point cloud with the transformed first 3D point cloud based on the one or more features of the terrain, to determine one or more transformation parameters. Thereafter, one or more calibration parameters for the second sensor device is extracted from the one or more transformation parameters. The second sensor device is calibrated based on the one or more calibration parameters.