Patent ID: 11954878
Assignee: RAVEN INDUSTRIES, INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC G  A | IPC A  G

Claim 0:
1. A device comprising:
an interface to a camera system; and
processing circuitry configured to:
obtain, via the interface, pixels from the camera system, the pixels of a scene observed by the camera system, the scene including a first repetitive feature and a second repetitive feature;
measure, in a first group of pixels from the pixels, a first ratio of pixels corresponding to the first repetitive feature and pixels corresponding to the second repetitive feature;
measure, in a second group of pixels from the pixels, a second ratio of the pixels corresponding to the first repetitive feature and the pixels corresponding to the second repetitive feature; and
determine a height difference between the first repetitive feature and the second repetitive feature based on a difference between the first ratio and the second ratio.