Abstract: A sensor pixel circuit may include: a photodiode to which a current flows according to incident light; a storage capacitor connected in parallel to the photodiode; a first transistor for connecting a bias voltage and the photodiode by a contact of a recognition object; and a second transistor for transmitting charges stored in the storage capacitor to a data line.

Abstract: A biometric information sensor device includes a control unit that issues a notification for failure to read biometric information of a detection target when reading of the biometric information fails after a contact of the detection target with a reading surface is detected.

Abstract: Embodiments are disclosed for finding similar persons in images. In particular, in one or more embodiments, the disclosed systems and methods comprise receiving an image query, the image query including an input image that includes a representation of a person, generating a first cropped image including a representation of the person's face and a second cropped image including a representation of the person's body, generating an image embedding for the input image by combining a face embedding corresponding to the first cropped image and a body embedding corresponding to the second cropped image, and querying an image repository in embedding space by comparing the image embedding to a plurality of image embeddings associated with a plurality of images in the image repository to obtain one or more images based on similarity to the input image in the embedding space.

Abstract: Systems, methods, tangible non-transitory computer-readable media, and devices associated with depth estimation are provided. For example, a feature representation associated with stereo images including a first and second plurality of points can be accessed. Sparse disparity estimates associated with disparities between the first and second plurality of points can be determined. The sparse disparity estimates can be based on machine-learned models that estimate disparities based on comparisons of the first plurality of points to the second plurality of points. Confidence ranges associated with the disparities between the first and second plurality of points can be determined based on the sparse disparity estimates and the machine-learned models. A disparity map for the stereo images can be generated based on using the confidence ranges and machine-learned models to prune the disparities outside the confidence ranges.

Abstract: An anti-counterfeiting method and a system for under-screen fingerprint identification are provided. A fingerprint sensing apparatus includes a display device and a fingerprint sensor, and the method includes the following steps. A fingerprint sensing image is captured for an object on the display device through the fingerprint sensor. The fingerprint sensing image is calibrated by using a color calibration parameter to generate a calibrated image. Whether the object is a real finger is determined by using an anti-counterfeiting algorithm and the calibrated image.

Abstract: A substrate and a covering structure coupled to the substrate form a chamber. The chamber houses an emitter configured to emit a radiation, a resonant reflector, a detector, and a fixed reflector. First and second windows extend through the covering structure. The emitter, the first reflector and the second reflector are reciprocally arranged such that radiation emitted from the emitter is reflected by the fixed reflector towards the MEMS reflector for further reflection towards the first window to form an output signal. The detector and the second window are reciprocally arranged such that an incoming radiation passing through the second window is received by the detector. The electronic module can be used for a 3D sensing application.

Abstract: In a method for fingerprint authentication, a fingerprint image is received from a fingerprint sensor. Fingerprint authentication of the fingerprint image is performed by comparing the fingerprint image to a set of authentication fingerprint images including at least one enrollment fingerprint image and at least one transformed fingerprint image, where the transformed fingerprint image is generated by applying a transfer function to at least one enrollment fingerprint image of the set of authentication fingerprint images, and where the transfer function is for simulating fingerprint image acquisition during a predefined environmental condition.

Abstract: A method of thermographic inspection is disclosed, including applying a thermal pulse to a surface and capturing an image of a thermal response of the surface. The image is captured with an infrared camera through a polarizer having a first orientation. The method further includes determining, by analysis of the image, whether the thermal response is indicative of a crack on the surface.

Abstract: A method for smoothing coordinates, a touch chip, and an electronic terminal are provided. The method includes: acquiring touch point coordinates of a current data frame on a touch screen, and touch point coordinates of N consecutive data frames prior to the current data frame, the N is a natural number greater than or equal to 2; performing a Bessel interpolation iteration on the touch point coordinates of N+1 data frames including the current data frame with the touch point coordinates of the N+1 data frames as initial iteration values; and acquiring an iteration result of the Bessel interpolation iteration, and implementing coordinate smoothing according to the iteration result. According to the embodiments of the present disclosure, the cost of smoothing coordinates is lowered, and the effect of smoothing coordinates is improved.

Abstract: A wearable device may include a main body, a sensor formed on a stem disposed on a side of the main body, and configured to acquire a partial fingerprint image of a finger of a user based on the finger being in contact with the sensor, and a processor configured to control a display to guide the user based on the acquired partial fingerprint image and a full fingerprint image of the finger to permit a measurement site of the finger to contact the sensor.

Abstract: A device that includes a model training engine implemented by a processor. The model training engine is configured to obtain a set of data values associated with a feature vector. The model training engine is further configured to transform a first data value and a second data value from the set of data value into sub-string correlithm objects. The model training engine is further configured to compute a Hamming distance between the first sub-string correlithm object and the second sub-string correlithm object and to identify a boundary in response to determining that the Hamming distance exceeds a bit difference threshold value. The model training engine is further configured to determine a number of identified boundaries, to determine a number of clusters based on the number of identified boundaries, and to train the machine learning model to associate the determined number of clusters with the feature vector.

Abstract: Various embodiments of the present invention relate to an electronic device having a sensor module performing a plurality of functions, the electronic device comprising: the sensor module comprising a plurality of piezoelectric elements including a plurality of first electrodes and a plurality of second electrodes, a first signal terminal connected to the plurality of first electrodes, a second signal terminal, and a plurality of switches capable of selectively connecting at least some electrodes of the plurality of second electrodes to the second signal terminal; and a control circuit.

Abstract: An information processing apparatus includes an input, a blood-relative list generator, a similar image searcher, and a suspect information generator. The input receives DNA information of a suspect and facial image relating to a plurality of facial images. The blood-relative list generator generates a list of blood relatives who are presumed to be blood relatives of the suspect from a plurality of pieces of DNA information. The similar image searcher calculates degree of similarity between facial images of persons on the blood-relative list and each of the plurality of facial images, and searches for and retrieves a facial image resembling the image of the person on the blood-relative list based on the calculated degree of similarity. The suspect information generation part generates suspect information by associating information relating to the retrieved facial image with information relating to the person on the blood-relative list who resembles the retrieved facial image.

Abstract: Systems for enhanced security using biometric controls are provided. A user may launch an application on a user device and one or more rules or instructions may be executed activating enhanced security functions for the application. As the user interacts with a touch screen display of the device, user input including biometric data may be captured. The biometric data may be compared to pre-stored biometric data of the user. If the biometric data matches the pre-stored data, the system may capture additional user input and biometric data and analyze that data to verify the user. If the biometric data does not match the pre-stored data, functionality and/or accessibility of the application may be modified. The system may continue to capture user input and/or biometric data and if the registered user's data is again recognized, the functionality and/or accessibility may again be modified to provide access to the registered user.

Abstract: A fingerprint detection device comprising a support having a bearing surface, a sensor arranged to capture an image of a dermatoglyph of a user's finger placed on the bearing surface, and an impedance-measuring electronic circuit connected to electrodes extending on the bearing surface, conductive tracks extending on the bearing surface between the electrodes and the impedance-measuring electronic circuit. At least two of the electrodes are connected to the impedance-measuring electronic circuit by at least two conductive tracks.

Abstract: A face identification system detects that a user is wearing a facemask, by finding an area on the face image which has no facial recognition facial features, and that area is a continuous area and includes the nose and mouth of the user, being covered by the mask. Responsive to making this detection, the system determines that the user is wearing a facemask and carries out a facemask recognition operation. The facemask recognition operation can include finding some other way to verify the user, or reducing security so that the user can be verified while still wearing the facemask.

Abstract: The present disclosure provides an ultrasonic fingerprint sensor, a display substrate, a driving method thereof and a display device. The ultrasonic fingerprint sensor includes: a base substrate; a driving structure provided on the base substrate and configured to transmit an ultrasonic signal; a receiving structure provided on the base substrate and configured to receive the ultrasonic signal reflected by a finger, and convert the ultrasonic signal into an electrical signal for determining fingerprint information, the driving structure and the receiving structure are provided in a same plane. Since the driving structure and the receiving structure of the ultrasonic fingerprint sensor of the present disclosure are in a same plane, the driving structure can be closer to the touch body (for example, a finger), which is advantageous for the ultrasonic waves generated by the driving structure to reach the finger to improve the touch accuracy.

Abstract: Provided are an electronic device for acquiring biometric information by using an electrode selected from electrodes of a biometric sensor, and a method for controlling same. An electronic device according to various embodiments of the present document may comprise: a biometric sensor including a plurality of electrodes for acquiring biometric information; and a processor electrically connected to the biometric sensor, wherein the processor is configured to determine whether an event related to acquiring of the biometric information occurs, select certain electrodes from the plurality of electrodes to acquire the biometric information, in response to occurrence of the event, and acquire the biometric information by using the selected electrodes.

Abstract: A live facial recognition method includes capturing a zoom-out image of a face of a subject under recognition; and detecting a frame outside the face of the subject under recognition on the zoom-out image. The subject under recognition is determined to be a living subject when the zoom-out image includes no frame outside the face.

Abstract: A method for facial information preview and related products are provided. The method is applicable to a terminal device and includes the following. A camera of the terminal device is enabled and a switching notification is generated to notify a display screen of the terminal device to display at least one frame of transition interface before displaying a preview interface. The at least one frame of transition interface is displayed on the display screen according to the switching notification. Facial information is collected with the camera enabled and the preview interface is displayed on the display screen when the camera collects facial information.