Abstract: A fingerprint template updating method and device is provided. The fingerprint template updating method includes: in response to an acquired current fingerprint matching one of at least one fingerprint template, determining whether to update the at least one fingerprint template using the current fingerprint based on a matching status of a first number of fingerprints acquired prior to the current fingerprint and/or a second number of fingerprints acquired after the current fingerprint.

Abstract: An electrochromic dimming structure and a transportation apparatus are provided. The electrochromic dimming structure includes a substrate, an electrochromic device and a first protective layer. The electrochromic device includes a first electrode layer, an electrochromic layer and a second electrode layer, the first electrode layer is located between the electrochromic layer and the substrate, the first electrode layer and the second electrode layer are full-layer transparent electrode layers, and at least one of the first electrode layer or the second electrode layer includes an oxide material. The electrochromic device further includes a metal electrode located at at least one of a side of the first electrode layer away from the second electrode layer or a side of the second electrode layer away from the first electrode layer, and the metal electrode is electrically connected with at least one of the first electrode layer or the second electrode layer.

Abstract: A dynamic update system includes an input unit configured to receive biometric information of a user in real time and convert the biometric information into biometric data, a dynamic update processing unit configured to use the biometric data for dynamic update, and a storage configured to back up registered biometric data of the user and data for the dynamic update, wherein the dynamic update processing unit determines whether to perform the dynamic update using the biometric data by utilizing one of spatial information and time information of the biometric data.

Abstract: A fingerprint recognition method includes receiving an input fingerprint image; dividing the input fingerprint image into M image blocks, wherein M is an integer greater than 1, calculating a score of N image blocks among the M image blocks by inputting successive ones of the M image blocks into a neural network for fingerprint recognition until the score of the N image blocks meets a preset condition, wherein the score is a sum score, and N is an integer less than or equal to M, and terminating calculating the scores of remaining image blocks among the M image blocks, and recognizing a legitimacy of a fingerprint in the input fingerprint image.

Abstract: A fingerprint recognition method includes receiving an input fingerprint image; dividing the input fingerprint image into M image blocks, wherein M is an integer greater than 1, calculating a score of N image blocks among the M image blocks by inputting successive ones of the M image blocks into a neural network for fingerprint recognition until the score of the N image blocks meets a preset condition, wherein the score is a sum score, and N is an integer less than or equal to M, and terminating calculating the scores of remaining image blocks among the M image blocks, and recognizing a legitimacy of a fingerprint in the input fingerprint image.

Abstract: A fingerprint segmentation method and device is provided. The fingerprint segmentation method may include dividing a fingerprint image into a plurality of sub-images, pooling each sub-image to acquire a feature map of the fingerprint image, and segmenting the feature map based on a region growing algorithm to acquire a fingerprint region in the fingerprint image.

Abstract: A fingerprint image processing method includes: receiving a plurality of blocks of a block matrix representing a fingerprint image; and processing a first set of blocks of the plurality of blocks, the processing comprising: obtaining a plurality of candidate directions of a current block, wherein the plurality of candidate directions include an initial direction of the current block, and directions of at least a respective predetermined number of blocks on a left of the current block and a right of the current block, and the initial direction is determined using a direction of a left adjacent block and a direction of an upper adjacent block of the current block; and determining a direction of the current block from among the plurality of candidate directions based on Discrete Fourier Transform (DFT) energies in the plurality of candidate directions.

Abstract: Provided are a detection substrate and a manufacturing method therefor, and a ray detection apparatus. The detection substrate includes: a driving back plate, wherein the driving back plate is provided with a plurality of detection regions, and each detection region includes a thin-film transistor located on a base substrate, and a first bonding electrode that is located on the thin-film transistor and is electrically connected to a source electrode of the thin-film transistor; and a plurality of avalanche photodiodes, wherein the plurality of avalanche photodiodes are arranged in the detection regions one by one, and a second bonding electrode that is fixedly connected to the first bonding electrode is arranged on the side of each avalanche photodiode that faces the driving back plate.

Abstract: A fingerprint enrolling method includes controlling a smart card having a fingerprint sensor disposed therein to capture a first fingerprint image of a finger at a first position. The smart card is controlled to move to a second position to capture a second fingerprint image of the finger at the second position when the first fingerprint image is successfully captured. The fingerprint enrolling method according to the disclosure enhances the user experience, increases the diversity of enrolling the fingerprint templates, and increases accuracy rate of the matching.

Abstract: Systems and techniques associated light detection and ranging (LIDAR) applications are described. In one representative aspect, techniques can be used to implement a packaged semi-conductive apparatus is disclosed. The apparatus includes a substrate; a diode die carried by the substrate and positioned to emit an electromagnetic energy beam; and a shell coupled to the substrate to enclose the diode die. The shell includes an opening or a transparent area to allow the electromagnetic energy beam emitted from the diode die to pass through the shell.

Abstract: A photoelectric detection circuit and a driving method therefor, and a detection substrate and a ray detector. The photoelectric detection circuit includes a storage circuit (101), an amplification circuit (102), a first reading circuit (103) and a second reading circuit (104), where the storage circuit (101), the amplification circuit (102) and the first reading circuit (103) cooperate with one another to realize a photoelectric detection function in an active mode; and the storage circuit (101) and the second reading circuit (104) cooperate with each other to realize a photoelectric detection function in a passive mode.

Abstract: The present disclosure relates to an X-RAY detector including a base substrate and a plurality of detection units arranged on the base substrate. Each detection unit includes a light conversion element and a switching transistor, the light conversion element is configured to convert an optical signal into an electrical signal, and the switching transistor is configured to output the electrical signal to a reading signal line. Each detection unit further includes a radiation shielding structure located at a light-entering side of the detection unit, and an orthogonal projection of the radiation shielding structure onto the base substrate fully covers an orthogonal projection of the switching transistor onto the base substrate. The present disclosure further relates to a method for forming the X-RAY detector.

Abstract: The present disclosure relates to a fingerprint identification method, device, an electronic apparatus and a storage medium. The fingerprint identification method includes: capturing a fingerprint by a fingerprint sensor, identifying matching pairs of minutiae between the captured fingerprint and a reference fingerprint; calculating a first matching result based on the minutia matching pairs; identifying minutia surrounding features for each minutia of the captured fingerprint in the minutia matching pairs; determining, for each minutia in the minutia matching pairs, whether the minutia surrounding features of the captured fingerprint match with minutia surrounding features of the reference fingerprint; calculating a second matching result based on the determination; and generating an identification result based on the first matching result and the second matching result.

Abstract: A fingerprint enrolling method includes controlling a smart card having a fingerprint sensor disposed therein to capture a first fingerprint image of a finger at a first position. The smart card is controlled to move to a second position to capture a second fingerprint image of the finger at the second position when the first fingerprint image is successfully captured. The fingerprint enrolling method according to the disclosure enhances the user experience, increases the diversity of enrolling the fingerprint templates, and increases accuracy rate of the matching.

Abstract: A fingerprint template updating method and device is provided. The fingerprint template updating method includes: in response to an acquired current fingerprint matching one of at least one fingerprint template, determining whether to update the at least one fingerprint template using the current fingerprint based on a matching status of a first number of fingerprints acquired prior to the current fingerprint and/or a second number of fingerprints acquired after the current fingerprint.

Abstract: A fingerprint segmentation method and device is provided. The fingerprint segmentation method may include dividing a fingerprint image into a plurality of sub-images, pooling each sub-image to acquire a feature map of the fingerprint image, and segmenting the feature map based on a region growing algorithm to acquire a fingerprint region in the fingerprint image.

Abstract: An electronic printing system includes an imaging apparatus and an electronic paper that can be detached from each other and can be coupled together to perform one or more functionalities. The imaging apparatus includes a first electrode and a first passivation layer. The electronic paper includes a second electrode, an electro-optic layer on the second electrode, and a second passivation layer on a side of the electro-optic layer away from the second electrode. When the imaging apparatus and the electronic paper are coupled together, the first electrode, the first passivation layer, the second passivation layer, the electro-optic layer, and the second electrode are sequentially arranged in a stacked structure, the first electrode and the second electrode being configured to apply an electric field to the electro-optic layer. The first passivation layer and the second passivation layer can be detached from each other.

Abstract: This application provides a folding control mechanism. The folding control mechanism includes a base and a first rotating assembly. The first rotating assembly includes a first swing arm and a first housing fastening bracket, the first swing arm is rotatably connected to the base, and the first swing arm is slidably connected to the first housing fastening bracket. The first housing fastening bracket is provided with a first sliding groove, the first sliding groove extends in a first direction or a second direction, and the first swing arm is installed in the first sliding groove and is capable of sliding in the first sliding groove in the first direction or the second direction. A first stop block is disposed between the first swing arm and the first housing fastening bracket.

Abstract: An electrochromic dimming structure and a transportation apparatus are provided. The electrochromic dimming structure includes a substrate, an electrochromic device and a first protective layer. The electrochromic device includes a first electrode layer, an electrochromic layer and a second electrode layer, the first electrode layer is located between the electrochromic layer and the substrate, the first electrode layer and the second electrode layer are full-layer transparent electrode layers, and at least one of the first electrode layer or the second electrode layer includes an oxide material. The electrochromic device further includes a metal electrode located at at least one of a side of the first electrode layer away from the second electrode layer or a side of the second electrode layer away from the first electrode layer, and the metal electrode is electrically connected with at least one of the first electrode layer or the second electrode layer.

Abstract: A hinge mechanism includes a main shaft assembly, a first housing fastening bracket, a rotating module, and a first damping assembly. The rotating module includes a first swing arm, the first swing arm is rotatably connected to the main shaft assembly, and the first swing arm is slidably connected to the first housing fastening bracket. The first damping assembly includes a first cam, a second cam, a first elastic member, and a first limiting block, the first cam is disposed on a side that is of the first swing arm, the second cam is located on a side that is of the first cam and that is away from the first swing arm, the second cam is slidably disposed on the first housing fastening bracket in a axial direction of the hinge mechanism, a cam surface of the second cam abuts against a cam surface of the first cam.