Lens shading using non-radial image correction

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.

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