Patent ID: 11950014
Assignee: FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. Method for differentiating between background and foreground of a scenery in images recorded by an electronic camera, the background showing an arbitrary image coded with a coding such that the image is visible for a direct observer of the background, and the background being differentiated from a non-coded foreground in a signal produced by an image sensor, recording the images, of the camera by the coding, wherein the coding of the image comprises the background displaying periodically alternating patterns which complement each other within one period to form a complete image and in that the background is differentiated from the foreground in the signal of the image sensor by the periodically alternating pattern.