Back to results
US 10,853,624 B2Granted
Apparatus and method
AssigneeSony Corporation
InventorsPiergiorgio Sartor, Mori Hironori, Alexander Gatto, Ralf Müller
Life of this patent
Estimating the term…
Abstract
An apparatus has a circuitry which detects a first biometric feature of a user; detects a second biometric feature of the user, wherein the second biometric feature is detected based on image data representing the second biometric feature, and wherein the second biometric feature differs from the first biometric feature; and estimates an illumination indication for the second biometric feature, based on the image data.
Claims17
An apparatus comprising circuitry configured to:
- detect a first biometric feature of a user;
- detect a second biometric feature of the user, wherein the second biometric feature is detected based on image data representing the second biometric feature, and wherein the second biometric feature differs from the first biometric feature;
- and
- estimate an illumination indication for the second biometric feature, based on the image data, wherein
- the illumination indication is estimated based on first image data and second image data, the first image data corresponding to a first illumination condition and the second image data corresponding to the second illumination condition,
- the first illumination condition corresponds to an image captured with a known illumination source, and
- the circuitry is further configured to determine image data corresponding to the known illumination source, based on subtracting a logarithmic derivation of the first image data and the second image data.
4 more elements
A method comprising:
- detecting a first biometric feature of a user;
- detecting a second biometric feature of the user, wherein the second biometric feature is detected based on image data representing the second biometric feature, and wherein the second biometric feature differs from the first biometric feature;
- and
- estimating an illumination indication for the second biometric feature, based on the image data, wherein
- the illumination indication is estimated based on first image data and second image data, the first image data corresponding to a first illumination condition and the second image data corresponding to the second illumination condition,
- the first illumination condition corresponds to an image captured with a known illumination source, and
- the method further comprises determining image data corresponding to the known illumination source, based on subtracting a logarithmic derivation of the first image data and the second image data.
4 more elements
Dependencies are inferred from the claim text.