The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 2021
Filed:
Mar. 25, 2020
Christie Digital Systems Usa, Inc., Cypress, CA (US);
Xiaodan Hu, Waterloo, CA;
Mohamed A. Naiel, Waterloo, CA;
Zohreh Azimifar, Waterloo, CA;
Ibrahim Ben Daya, Kitchener, CA;
Mark Lamm, Mississagua, CA;
Paul Fieguth, Waterloo, CA;
CHRISTIE DIGITAL SYSTEMS USA, INC., Cy, CA (US);
Abstract
A device, system and method for enhancing high-contrast and text regions in projected images is provided. A device applies, to an input image: a high-contrast sharpening filter sharpening high-contrast regions producing a high-contrast sharpened image; and a background sharpening filter sharpening other regions of the input producing a background sharpened image, the background sharpening filter applying less sharpening than the high-contrast sharpening filter. The device: determines, using high-contrast and motion detectors, the input image and/or previous images, masks selecting stationary high-contrast regions of the input image; determines, using the masks, a background mask selecting remaining regions of the input image; applies the masks to the high-contrast sharpened image selecting stationary high-contrast regions therefrom; applies the background mask to the background sharpened image selecting the remaining regions therefrom; combines the stationary high-contrast and remaining regions to produce a combined enhanced image; and controls a projector to project the combined enhanced image.