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:
Jun. 03, 2025
Filed:
Feb. 06, 2023
Nvidia Corporation, Santa Clara, CA (US);
Yongshen Ni, San Jose, CA (US);
Eric Dujardin, San Jose, CA (US);
NVIDIA Corporation, Santa Clara, CA (US);
Abstract
In various examples, lens shading image correction systems and applications using non-radial correction of residual radial shading error are provided. In some embodiments, lens shading image correction may be implemented using calibration parameters corresponding to radial lens shading correction, and calibration parameters corresponding to non-radial lens shading correction. In some embodiments, sensor data comprising an image frame may be captured using a sensor. Radial lens shading correction may be applied to the image frame to produce a residual shading profile, and non-radial lens shading correction may be applied to the residual shading profile to produce a calibrated image frame. Parameters for radial lens shading correction may be computed from a lens shading profile associated with the sensor, and parameters for non-radial lens shading correction may be computed based a residual shading profile produced from the radial lens shading correction.