Patent ID: 11908165
Assignee: BNSF RAILWAY COMPANY
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 16:
17. A system for calibrating image capturing modules, comprising:
a camera array for acquiring at least one image sequence of each item;
a memory for storing the acquired images and information for each image; and
a processor configured to calibrate image capturing modules by performing the steps of:
capturing, by the camera array, a first image of a target attached to a drum;
determining a number of lateral pixels in a lateral pitch distance of the first image of the target;
determining a lateral object pixel size based on the number of lateral pixels;
determining a drum encoder rate based on the lateral object pixel size, wherein the drum encoder rate is programmed into a drum encoder attached to the drum; and
calculating a vehicle encoder rate based on the drum encoder rate.