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187 results about "Random array" patented technology

Binocular visible light camera and thermal infrared camera-based target identification method

The invention discloses a binocular visible light camera and thermal infrared camera-based target identification method. The method comprises the steps of calibrating internal and external parametersof two cameras of a binocular visible light camera through a position relationship between an image collected by the binocular visible light camera and a pseudo-random array stereoscopic target in a world coordinate system, and obtaining a rotation and translation matrix position relationship, between world coordinate systems, of the two cameras; according to an image collected by a thermal infrared camera, calibrating internal and external parameters of the thermal infrared camera; calibrating a position relationship between the binocular visible light camera and the thermal infrared camera;performing binocular stereoscopic visual matching on the images collected by the two cameras of the binocular visible light camera by adopting a sift feature detection algorithm, and calculating a visible light binocular three-dimensional point cloud according to a matching result; performing information fusion on temperature information of the thermal infrared camera and the three-dimensional point cloud of the binocular visible light camera; and inputting an information fusion result to a trained deep neural network for performing target identification.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Train cab interlocking and mutual-controlling system based on train line

ActiveCN102372007AActivation will notRealize interlockingLocomotivesRandom arrayPower grid
The invention provides a train cab interlocking and mutual-controlling system based on a train line. The system comprises one train line which penetrates through a train; a cab is internally provided with a key switch, a key relay, a key interlocking relay and an occupation relay, wherein the key switch, a normally-closed contact of the key interlocking relay and the key relay are connected in series and then are switched into a train power grid; the key switch, a normally-opened contact of the occupation relay and the normally-closed contact of the key relay are connected in series and then are connected with the relay in parallel, all of the members are connected with the normally-opened contact of the key relay in series and then are switched into the train power grid; and the train line is connected with a lead wire between the occupation relay and the normally-opened contact of the key relay. The system provided by the invention has an ingenious concept and the interlocking and the mutual-controlling of the cab can be realized by only using one train line, so that the system is beneficial to simplifying design and construction and improving the reliability; according to the system provided by the invention, not only the interlocking and the mutual-controlling of keys of the two cabs in the train are realized, but also the interlocking and the mutual-controlling of the keys of any two cabs can be realized when random arrays of the trains are coupled.
Owner:CRRC NANJING PUZHEN CO LTD

Feather point matching method based on colored false random coding projection

InactiveCN101763654AOvercome isolationOvercome the shortcomings that all connections will hinder decodingImage coding3D modellingShift registerTheoretical computer science
The invention belongs to the filed of image matching of coding structured light active visual sense in machine visual sense, in particular to a feather point matching method based on the colored false random coding projection. The invention is based on a false random coding principle, and designs a novel colored coding projection template by using a point and line combined method. The method comprises the following concrete steps: 1. generating a false random sequence from a0, a1 to an by a feedback network n-displacement bit register specified by a primitive polynomial h(x)=xm+hm-1xm-1+...+h1x+h0; 2. filling the false random sequence from a0, a1 to an into a matrix with the size of n=n1*n2 for generating a false random array b; and 3. using the generated array values as the discrete feather points, connecting the feather points by a feather line, and establishing a coding template. The invention introduces a morphological algorithm, and provides the extraction algorithm of the relevant feather points. In the decoding process, the invention provides the thought of mutual verification of adjacent windows, can realize the automatic extraction and matching of the feature points, and can perfectly solve the problem of shadow generation during the projection of the structural light on the surface of the complicated three-dimensional scenes and the problem of mistake feather point matching caused by that parts of coding patterns are covered because the shooting angles of a video camera are different.
Owner:JIANGSU UNIV

Encoded random arrays and matrices

A method and apparatus for the manipulation of colloidal particulates and biomolecules at the interface between an insulating electrode such as silicon oxide and an electrolyte solution. Light-controlled electrokinetic assembly of particles near surfaces relies on the combination of three functional elements: the AC electric field-induced assembly of planar aggregates; the patterning of the electrolyte / silicon oxide / silicon interface to exert spatial control over the assembly process; and the real-time control of the assembly process via external illumination. The present invention provides a set of fundamental operations enabling interactive control over the creation and placement of planar arrays of several types of particles and biomolecules and the manipulation of array shape and size. The present invention enables sample preparation and handling for diagnostic assays and biochemical analysis in an array format, and the functional integration of these operations. In addition, the present invention provides a procedure for the creation of material surfaces with desired properties and for the fabrication of surface-mounted optical components. The invention is also for a system and method for programmable illumination pattern generation, including a novel method and apparatus to generate patterns of illumination and project them onto planar surfaces or onto planar interfaces such as the interface formed by an electrolyte-insulator-semiconductor (EIS), e.g., as described herein. This enables the creation of patterns or sequences of patterns using graphical design or drawing software on a personal computer and the projection of said patterns, or sequences of patterns (“time-varying patterns”), onto the interface using a liquid crystal display (LCD) panel and an optical design which images the LCD panel onto the surface of interest. The use of the LCD technology provides flexibility and control over spatial layout, temporal sequences and intensities (“gray scales”) of illumination patterns. The latter capability permits the creation of patterns with abruptly changing light intensities or patterns with gradually changing intensity profiles.
Owner:BIOARRAY SOLUTIONS

Estimation method for arriving direction of monostatic MIMO radar based on random array manifolds

The invention discloses an estimation method for the arriving direction of a monostatic MIMO radar based on random array manifolds. The method mainly solves the problems that an existing technology is only suitable for linear arrays and large in calculated quantity. The method comprises the steps that 1) the guide vector quantity of the monostatic MIMO radar is written according to the array manifolds; 2) manifold spreading is carried out on the guide vector quantity of the MIMO radar to obtain the Vandermonde guide vector quantity, guide vector quantity transfer is conducted by means of a spatial smoothing thought, and a transfer matrix from the MIMO guide vector quantity to the guide vector quantity after transfer is evaluated; 3) a receiving array and a transmitted waveform are utilized to carry out matched filtering to form an autocorrelation matrix; 4) characteristic decomposition is conducted on the autocorrelation matrix to obtain an eigenvalue and an eigenvector, and the eigenvector is selected to form a noise subspace; 5) the noise subspace is used for forming a space zero spectral function, and a polynomial rooting method is adopted to obtain an azimuth angle. The method can achieve quick estimation on the arriving direction of the monostatic MIMO radar based on the random array manifolds, is small in operation quantity, and can be used for target locating and radar tracking.
Owner:XIDIAN UNIV

Physical unclonable function response error correcting circuit based on SRAM type memory

The invention discloses a physical unclonable function response error correcting circuit based on an SRAM type memory. The physical unclonable function response error correcting circuit based on the SRAM type memory comprises a coding module, a decoding module and a control module, wherein the coding module is used for mapping the physical unclonable function response into a uniquely corresponding position code sequence by being combined with a key sequence formed by a random number through a specific coding rule; the decoding module is used for reversely mapping the physical unclonable function response by combining the original position code sequence for reducing the key sequence; the control module realizes the coding and decoding conversion, the time sequence and address generation, circuit control between module circuits and similarity calculation between a key before coding and a key after the coding. The physical unclonable function response error correcting circuit has the advantages that the instability of the SRAM PUF response is overcome; the unstable SRAMPUF response is output and converted into the stable mapping relationship between the key and the position code, so that the hardware identity authentication is realized; the identity authentication safety is improved; the authentication process is simplified; the authentication efficiency is improved; the hardware cost is reduced.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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