2774results about "Spoof detection" patented technology

A biometric identification system directed toward use of dual-band visual-infrared imaging with appropriate techniques for integrating the analysis of both images to distinguish less reliable from more reliable image components, so as to generate a composite image comprised of layers. Correlation and analysis of the composite layers enables improved reliability in identification. The method and apparatus of the invention provide for efficient and optimized use of dual-band imaging for biometric identification of faces, fingerprints, palm and hand prints, sweat pore patterns, wrist veins, and other anatomical features of humans and animals.One embodiment includes the addition of a thermal infrared camera to a visual facial recognition system, with the IR image used to determine that the subject is alive and locate any features which are disguised. Another embodiment adds a visual camera to a thermal infrared facial recognition system, with areas of the visual image used to add colors and to fill-in behind eyeglasses which block the thermal infrared signature.

A security device restricting access to various machines, places or data, using a security device that is kept in close proximity to a portion of the body of a person and is activated to provide access to those machines, places or data to that person only when that person is confirmed to be a designated person, and which is automatically deactivated when it ceases to be in close proximity to that person's body.

A piezoelectric thin film sensor array is used to scan and capture biometric data, for example, a fingerprint image. In one embodiment, a multi-layer structure includes a PVDF layer in between two conductor grids arranged orthogonally to one another. Urethane can be added to one side where a finger is placed. A foam substrate can be used as a support. In one feature, the PVDF, and grids can be peeled off like a label for easy replacement. Multiplexers are switched to scan the sensor. A single pixel or a group of pixels can be detected and output to an image memory. The presence of a fingerprint ridge is detected by virtue of a ring-down oscillation that arises from reflection when an electric field is applied to the piezoelectric thin film sensor array at a pixel in contact with the fingerprint ridge. For example, such a ring-down value associated with a fingerprint ridge can be detected at about 150 ns. (or 5 cycles at 30 MHZ). Other reflections indicative of additional biometrics (e.g. from tissue, blood, bone, fingernail, etc.) can also be detected. A Doppler effect due to reflections from circulating blood can also be detected. Such a Doppler effect can provide further information about direction and speed of blood circulation. An instantaneous pyroelectric effect can also be detected to indicate a live finger presence.

A system and method for securing a financial transaction using a proxy code, which is assigned a transaction account number. An account issuer permanently assigns the proxy code to a transaction account correlated to the transaction device. The proxy code is uploaded onto the transaction device for later use in completing a transaction request. During transaction completion, the proxy code is provided to a merchant system in lieu of any sensitive account information. Since the proxy code is permanently assigned, the number need not be changed or updated on the merchant system once uploaded into a payment device or merchant database. The account issuer may manipulate the sensitive account information without need to alter the information stored on the merchant database. Since the proxy code contains no sensitive information, the sensitive information related to the transaction account is secured from theft.