Patent ID: 11880983
Assignee: LOGITECH EUROPE S.A.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A method of processing images, comprising:
capturing, by a camera device, a first image of a surface, wherein the first image comprises presentation information that is disposed on at least a portion of the surface, and a portion of a presenter that is disposed between the camera device and the surface;
performing a presenter segmentation process, comprising:
detecting the portion of the presenter in a second image that is derived from the first image; and
generating a presenter mask that is used to define pixels in the first image that are associated with the detected portion of the presenter;

performing a canvas reconstruction process, comprising:
replacing the pixels in the first image that are associated with the detected portion of the presenter within the presenter mask to form a reconstructed canvas image;

performing a presentation information segmentation process, comprising:
detecting presentation information in the reconstructed canvas image; and
generating a presentation information mask that includes pixels in the reconstructed canvas image that contain portions of the presentation information;

performing a background reconstruction process, comprising:
applying the generated presentation information mask to the reconstructed canvas image to determine the pixels that contain the portions of the presentation information; and
reconstructing the pixels in the reconstructed canvas image that contain the portion of the presentation information to form a canvas background image; and

performing a background bleaching process, comprising:
removing imperfections in the reconstructed canvas image by dividing the reconstructed canvas image by the canvas background image.