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:
Dec. 28, 2021
Filed:
Dec. 11, 2018
Intel Corporation, Santa Clara, CA (US);
Rastislav Lukac, San Jose, CA (US);
INTEL CORPORATION, Santa Clara, CA (US);
Abstract
Techniques are provided for infrared (IR) crosstalk correction for hybrid Red-Green-Blue-IR (RGB-IR) sensors. A methodology implementing the techniques according to an embodiment includes estimating illumination characteristics applied to a subject. The estimation is based on the subject image provided by a hybrid RGB-IR sensor, which comprises a plurality of pixels, each of the pixels associated with an R, G, B, or IR channel. The method further includes selecting a set of correction model parameters from a calibration database, the selection based on the estimated illumination characteristics, and generating a correction model based on the selected set of correction model parameters. The correction model provides correction weights for the RGB channels. The method further includes generating RGB correction values as a product of the correction weights and the IR channel and adjusting the RGB channels by the correction values to reduce IR crosstalk between the IR channel and the RGB channels.