Abstract: A method of identifying characters in images extracts features of a detection image including characters. Enhancement processing is performed on the detection image according to the features to obtain an enhanced image. Closed edges of the characters are detected in the enhanced image. First rectangular outlines of the characters are determined according to the closed edges. The first rectangular outlines are corrected to obtain second rectangular outlines. The characters are cropped from the detection image according to the second rectangular outlines. The method identifies characters in images accurately and rapidly.

Abstract: Disclosed in the present invention is a method for preparing high-purity losartan, which belongs to the fields of medicine and chemical engineering. The losartan is obtained by means of a multi-stage temperature reaction in the presence of a catalyst and sodium azide, wherein the temperature in the first stage of the multi-stage temperature reaction is higher than that in the second stage. According to the method, the generation of dimer impurities can be reduced, and the risk of impurities being introduced into a finished losartan potassium product is reduced.

Abstract: A method of recognizing target objects in images obtains a detection image of a target object. A template image is generated according to the target object. The detection image is compared with the template image to obtain a comparison result. Candidate regions of the target object are determined in the detection image according to the comparison result. At least one target region of the target object is obtained from the candidate regions. The method detects target objects in images very rapidly.

Abstract: This application provides an image defect detection method. The method includes obtaining a first image and a second image of a flawless image. A third image is obtained from the second image and the first image, and a fourth image is obtained according to the second image and an image to be detected. A fifth image is obtained based on the third image and the second image. A sixth image is obtained based on the third image and the fourth image. A seventh image is obtained from the fifth image and the sixth image. A defect value of the fourth image is obtained according to the third image and the seventh image. A detection result of the fourth image is determined based on the defect value.

Abstract: A method for updating software comprises transmitting a first version of the software and a first decryption key to a computing system. The method further comprises generating a second version of the software and a second decryption key. The method further comprises encrypting the second version of the software and the second decryption key. The encrypted second version of the software is configured to be decrypted using the first decryption key and not the second decryption key. The method further comprises transmitting the encrypted second version of the software and the encrypted second decryption key to the computing system.

Abstract: The present disclosure provides a method and system for manufacturing a semiconductor layer. The method includes: placing a first wafer in a cavity to form a metal film on the first wafer; before forming the metal film, the temperature inside the cavity is a first temperature; transferring the first wafer on which the metal film has been formed out of the cavity; the temperature in the cavity is a second temperature, and the second temperature is greater than the first temperature; introducing an inert gas into the cavity to cool the cavity, such that the temperature in the cavity is equal to the first temperature; after the temperature in the cavity is equal to the first temperature, placing a second wafer in the cavity to form the metal film on the second wafer. The manufacturing method can reduce the defects on the surface of the metal film.

Abstract: A photoelectrochemical device includes a substrate, a first titanium nitride (TiN) layer coated on the substrate, and a first nitrogen-doped titanium dioxide (N—TiO2) layer coated on the first TiN layer. The photoelectrochemical device has enhanced photoelectric conversion efficiency and can be made by a simple, effective method, thereby shortening the manufacturing time and lowering the manufacturing cost thereof.

Abstract: A method for updating software comprises transmitting a first version of the software and a first decryption key to a computing system. The method further comprises generating a second version of the software and a second decryption key. The method further comprises encrypting the second version of the software and the second decryption key. The encrypted second version of the software is configured to be decrypted using the first decryption key and not the second decryption key. The method further comprises transmitting the encrypted second version of the software and the encrypted second decryption key to the computing system.

Abstract: This application provides an image defect detection method. The method includes obtaining a first image and a second image of a flawless image. A third image is obtained from the second image and the first image, and a fourth image is obtained according to the second image and an image to be detected. A fifth image is obtained based on the third image and the second image. A sixth image is obtained based on the third image and the fourth image. A seventh image is obtained from the fifth image and the sixth image. A defect value of the fourth image is obtained according to the third image and the seventh image. A detection result of the fourth image is determined based on the defect value.

Abstract: A method of identifying characters in images extracts features of a detection image including characters. Enhancement processing is performed on the detection image according to the features to obtain an enhanced image. Closed edges of the characters are detected in the enhanced image. First rectangular outlines of the characters are determined according to the closed edges. The first rectangular outlines are corrected to obtain second rectangular outlines. The characters are cropped from the detection image according to the second rectangular outlines. The method identifies characters in images accurately and rapidly.

Abstract: A method of recognizing target objects in images obtains a detection image of a target object. A template image is generated according to the target object. The detection image is compared with the template image to obtain a comparison result. Candidate regions of the target object are determined in the detection image according to the comparison result. At least one target region of the target object is obtained from the candidate regions. The method detects target objects in images very rapidly.

Abstract: The present disclosure provides a method and system for manufacturing a semiconductor layer. The method includes: placing a first wafer in a cavity to form a metal film on the first wafer; before forming the metal film, the temperature inside the cavity is a first temperature; transferring the first wafer on which the metal film has been formed out of the cavity; the temperature in the cavity is a second temperature, and the second temperature is greater than the first temperature; introducing an inert gas into the cavity to cool the cavity, such that the temperature in the cavity is equal to the first temperature; after the temperature in the cavity is equal to the first temperature, placing a second wafer in the cavity to form the metal film on the second wafer. The manufacturing method can reduce the defects on the surface of the metal film.

Abstract: A light guide plate, a manufacturing method thereof, and a display device are provided. The light guide plate includes a glass substrate, an adhesive layer arranged at a surface of the glass substrate, a reflector arranged at a surface of the adhesive layer away from the glass substrate, and a total reflection structure distributed in the adhesive layer.

Abstract: A light guide plate, a manufacturing method thereof, and a display device are provided. The light guide plate includes a glass substrate, an adhesive layer arranged at a surface of the glass substrate, a reflector arranged at a surface of the adhesive layer away from the glass substrate, and a total reflection structure distributed in the adhesive layer.

Abstract: A circuit and method of power on initialization for a configuration memory of an FPGA. The circuit includes: a decoding circuit, a driving circuit, and a configuration memory, where when 0 is written for the 1st time, the decoding circuit turns on a word line corresponding to an address in the configuration memory, and the driving circuit writes content of the word line into 0; and when 0 is written for the ith time, the decoding circuit turns on at least one word line corresponding to at least one address in the configuration memory, and the driving circuit writes content of each word line in the at least one word line into 0, the number of the at least one address being less than or equal to a sum of addresses that have completed writing of 0 for the previous (i?1)th time.

Abstract: A shock-resistance testing apparatus includes a support base, a first rotating component and a controller provided on the support base. A second rotating component is coupled to one side of the first rotating component. A testing board is placed on the first rotating component. A falling board is placed on the testing board. The controller controls the first rotating component to drive the second rotating component rotating from one side of the testing board to another side of the testing board. The controller controls the second rotating component to lift the testing board. The controller controls the second rotating component to move away from the testing board so that the testing board falls.

Abstract: A visible light communication LED having a spiral inductance coil and a circular core is provided, comprising a sapphire substrate provided with a positive electrode welding spot and a negative electrode welding spot, and a plurality of LED cores deposited on the sapphire substrate. The negative electrode of a former core is connected with the positive electrode of a latter core, and the positive electrode of the first core and the negative electrode of the last core are respectively connected to the positive electrode welding spot and the negative electrode welding spot on the substrate. According to the present invention, each of the LED cores is surrounded by a spiral inductance coil, and a pin of one end of the spiral inductance coil is connected via a connecting wire with the negative electrode of an adjacent LED core, while the other end is directly connected with the positive electrode of the LED core that is surrounded by the spiral inductance coil.

Abstract: An embedded pole is provided which includes a conductive path and a movable contact. The movable contact is selectively movable between a first position in which the conductive path is closed and a second position in which the conductive path is open. An insulation element is coupled to and selectively movable in conjunction with the movable contact. The embedded pole further includes a sensor coupled to the insulation element and operable to detect a displacement of the insulation element that corresponds to a movement of the movable contact between the first position and the second position.