Patent ID: 11928874
Assignee: SICK AG
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A method for detecting objects (48) moving in a direction of movement (50), the method comprising:
using an image sensor (18) for recording image data of the objects (48) in a camera field of view (14, 56);
using an optoelectronic distance sensor (24) according to a principle of a time-of-flight method having a plurality of measurement zones (30a) for measuring a plurality of distance values to the objects (48) in a distance measurement field of view (58);
using signals from the image sensor (18) and the distance sensor (24) to measure distance values over a configuration time and to evaluate at least one of the distance values and a change of the distance values, a region where objects (48) move, and to automatically set a region of interest (60) for the distance sensor (24) within the distance measurement field of view (58) by determining an object region as the region where objects (48) move;
determining a statistical measure for changes in the distance values of a respective measurement zone (30a) over a variation time; and
determining a respective maximum value of the distance values of a respective measurement zone (30a) over a background detection time.