BIOMETRIC FINGERPRINT PHOTOACOUSTIC TOMOGRAPHIC IMAGING

The described techniques support a sensing scheme for electromagnetic excitation in ultrasonic imaging sensors. A biological tissue may be sensed and imaged using an electromagnetic excitation process to generate ultrasonic waves, such as, within the tissue. A component of a device may generate one...

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Bibliographic Details
Main Authors Miranto, James Anthony, Kitchens, Jack Conway, John Archibald, Fitzgerald, Brooks, Emily Kathryn, Stoianov, Alexei, Gojevic, Stephen Michael, Schneider, John Keith, Breloff, Evan Michael
Format Patent
LanguageEnglish
Published 10.08.2023
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The described techniques support a sensing scheme for electromagnetic excitation in ultrasonic imaging sensors. A biological tissue may be sensed and imaged using an electromagnetic excitation process to generate ultrasonic waves, such as, within the tissue. A component of a device may generate one or more pulses of electromagnetic waves, which may encounter and enter the biological tissue. The electromagnetic waves may excite the biological tissue and generate ultrasonic waves via expansion and contraction of the tissue upon heating. The ultrasonic waves may propagate within the biological tissue and may be sensed by an ultrasonic receiver array. The ultrasonic waves may be converted to pixel image data of a biometric image and may be used for biometric authentication. This process may be repeated to reconstruct an image of the finger at multiple plane slices of the finger.
Bibliography:Application Number: US202318301632