METHOD AND COMPUTER DEVICE FOR LIDAR SYSTEM CALIBRATION Russian patent published in 2023 - IPC G01S17/88 G01C21/26 G01C25/00 G08G1/16 B60W30/14 

FIELD: lidar systems.

SUBSTANCE: present technology relates to methods and electronic devices for driving a vehicle, and more particularly to methods and electronic devices for calibrating a lidar system. Methods and devices for determining the axis of symmetry of an unmanned vehicle (SDV) and for calibrating a lidar (LIDAR) optical detection and ranging system are disclosed. One of the coordinate system axes of the lidar system runs along the direction of the normal to the earth's surface. The method includes obtaining a subset of the detected points in the coordinate system; generating a subset of mirror points based on the subset of detected points; projecting the subset of mirror points onto the subset of detected points so as to define pairs of overlapping data points; using symmetrically opposite detected points to determine the SDV symmetry axis in the lidar system coordinate system; and calibrating the lidar system using an angular displacement between the SDV symmetry axis and another of the lidar system coordinate system axes.

EFFECT: improved calibration accuracy of the lidar system.

45 cl, 3 dwg