Electronic device including blurred finger image deblurring circuitry and related methods

摘要

An electronic device may include a finger biometric sensor that may include an array of electric field sensing pixels and image data output circuitry coupled thereto. The electronic device may also include a dielectric layer over the array of electric field sensing pixels and causing electric field diffusion so that the image data output circuitry generates image data corresponding to a blurred finger image. The electronic device may also include deblurring circuitry coupled to the image data output circuitry and capable of processing the image data to produce processed image data representative of a deblurred finger image.

主权项

1. An electronic device comprising:
a finger biometric sensor comprising an array of electric field sensing pixels; a dielectric layer over the array of electric field sensing pixels and having a non-uniform thickness; image data output circuitry coupled to the finger biometric sensor; and deblurring circuitry coupled to the image data output circuitry and capable of
storing a plurality of deblurring coefficients for a deblurring function, the plurality of deblurring coefficients being associated with the non-uniform thickness of the dielectric layer, andprocessing image data to produce processed image data in accordance with the deblurring function to account for variations of thickness across the dielectric layer.