Biometric recognition method using a standard electronic processing unit including a first computer and a first memory and a secure electronic processing unit including a second computer and a second memory, the method including the steps of executing a first part of the recognition steps by the standard processing unit and a second part of the recognition steps by the secure electronic processing unit. Device for the execution of that method.

In one embodiment, a sensor system includes an active thermal sensor pixel matrix, a plurality of presence sensors, and an image acquisition controller. The pixel matrix includes a plurality of pixels arranged in a plurality of rows and a plurality of columns and a boundary defining a perimeter. The plurality of presence sensors is disposed at least partially within the boundary of the pixel matrix. The image acquisition controller is coupled to the pixel matrix and the plurality of presence sensors. The image acquisition controller is configured to: (i) receive signals from the presence sensors; (ii) identify, based on the signals, a scan region, wherein the scan region is a portion of the pixel matrix that is in contact with or adjacent to a specimen; and (iii) obtain image data only from pixels that are within the scan region for generating an image of the specimen.

According to a first aspect of the present disclosure, a fingerprint authentication system is provided, comprising: a transformation unit configured to transform a first format of a captured fingerprint into a second format of the captured fingerprint, wherein the first format defines coordinates of minutia positions and the second format defines relative positions of minutiae; and an authentication unit configured to compare the relative positions with stored reference values. According to a second aspect of the present disclosure, a corresponding fingerprint authentication method is conceived. According to a third aspect of the present disclosure, a corresponding computer program product is provided.

A security chip, a biometric recognition method and a biometric template registration method are disclosed herein. The security chip comprises: a sensor configured to sensor information of a biometric feature; a memory configured to store a template of the biometric feature; a processor configured to obtain the information of the biometric feature from the sensor, perform image preprocessing and feature extraction on the obtained information of the biometric feature, compare features with the template of the biometric feature stored in the memory to determine a biometric recognition result, wherein the template of the biometric feature is generated by the processor by obtaining the information of the biometric feature from the sensor and performing image preprocessing and feature extraction on the obtained information of the biometric feature, and the sensor, the memory and the processor are integrated in the security chip. The sensing, storage and processing of the information relative to the biometric feature are all performed in the security chip, and physically isolated from the system environment, so that, the security is greatly improved compared to traditional logical isolation.

The invention proposes a method for processing biometric data, comprising verification of the result of a calculation of distance between a biometric candidate datum and at least one biometric reference datum, each comprising a number n of indexed components (a.sub.i, b.sub.i), said calculation of distance comprising that of a polynomial of the components of the biometric data, the method being executed by a proving entity and a verification entity, the method comprising steps during which: the proving entity communicates to the verification entity the result of calculation of the distance between the candidate and reference biometric data, and said data, the proving entity generates from each datum a function of a number d of variables f.sub.a(i.sub.1, . . . , i.sub.d), f.sub.b(i.sub.1, . . . , i.sub.d) where d=log.sub.2 n, defined for each variable on the set {0,1}, by reformulation of the index i of each component (a.sub.i, b.sub.i) in binary format, the proving entity generates from each function a polynomial of d variables (x.sub.1, . . . x.sub.d), {circumflex over (b)} (x.sub.1, . . . x.sub.d) defined on .sup.d where is a finite field, such that each polynomial , {circumflex over (b)} coincides with the corresponding function f.sub.a,f.sub.b on the set {0,1}.sup.d, and generates from the polynomials , {circumflex over (b)} a polynomial p(x.sub.1, . . . , x.sub.d) of d variables of the same expression as that of the distance between the data, and the proving entity and the verification entity engage in a Sumcheck protocol applied to the polynomial p to verify the result of calculation of the distance between the data.

The present disclosure relates to a method of amending a fingerprint template for a user of a smart card, where the user of the smart card is progressively enrolling based on comparison and/or using a separate credential such as a PIN code. The present disclosure also relates to a corresponding smart card and to a computer program product.

A biometric device such as a payment card includes a fingerprint sensor 15 having a sensing area for reading biometric data. A programming unit 1 is configured to engage the sensing area of the fingerprint sensor 15. The biometric device is configured to detect non-fingerprint data presented to the sensing area by the programming unit 1 and to process the non-fingerprint data as a command. Exemplary commands may cause the device to perform one or more of the following actions: clear an enrolled biometric template stored on the device and/or permit enrolment of a new biometric template onto the device; temporarily or permanently disable a biometric template stored on the device; temporarily or permanently restrict one or more actions performable by the device; modify one or more parameters of a biometric algorithm performable by the device, for example the algorithm may be a biometric matching algorithm and the parameter may be a similarity threshold for determining a match or a number of clock cycles per match; modify a clock frequency of a processor in the device.

A user authentication system uses an information code such as a two-dimensional information code. The authentication system includes an authentication device, and the user is authenticated by combining the authentication device with a user's mobile terminal. In the mobile terminal, an authentication code in which facial feature points extracted from user's facial images are recorded is stored in the memory. In the authentication device, facial feature points are extracted from images of a human's face captured by an imaging unit, after being determined to be in a facial recognizable state, and the authentication code is displayed on the screen of the mobile terminal. The e facial feature points recorded in the authentication code are read from the captured images of the authentication code. The extracted facial feature points and the read facial feature points are subject to matching with each other in order to authenticate the user.

Another aspect of the present disclosure relates to a method for identification verification. The method may include receiving, from a computing device, a request for identification verification of an individual at a web server. The web server may include an orientation verification module and a facial recognition module. The method may include receiving at a database an identification card image and a picture image. The method may include verifying an orientation of the identification card image is oriented relative to an accepted orientation using the orientation verification module. The method may include, if the identification card image is not oriented relative to the accepted orientation, using the web server, iteratively rotating the identification card image in one or more increments and assessing if the identification card image is oriented at the accepted orientation until the identification card image is oriented at the accepted orientation.

An IC module of an embodiment includes a storage unit, a communications unit, and a processing unit. The storage unit stores reference data. The communications unit receives check data. The processing unit detects a degree of similarity between the reference data and the check data. Furthermore, when the degree of similarity is equal to or larger than a first threshold value, the processing unit determines a verification success, and when the degree of similarity is smaller than the first threshold value, the processing unit determines a verification failure, and updates a verification failure history in a weighted manner according to the degree of similarity.