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196results about How to "Large amount of information" patented technology

Pseudorandom bar code applied to digital level bar code ruler

InactiveCN102654400AIncrease profitSolve the problem of misjudgment as coarse codeSurveyor's staffsMovable markersEngineeringOperand
The invention discloses a pseudorandom bar code applied to a digital level bar code ruler, belonging to the technical field of manufacture of instruments of surveying and mapping. The pseudorandom bar code is formed by alternatively arranging a plurality of light and shade stripes with different widths, wherein the widths and light and shade changes of the strips are modulated by a plurality of pseudorandom sequences. The strips in the bar code comprise coarse code strips for remote measurement and thin code strips for close measurement. The thin code strips are formed by alternatively arranging light and shade strips with smaller widths, and the width changes of the light strips and shade strips are respectively modulated by a pseudorandom sequence. The coarse code strips are formed by arranging light and shade strips with bigger widths, and the widths and light and shade changes of the strips are modulated by a pseudorandom sequence. The coarse code strips are regularly embedded in the fine code strips to form a complete bar code. The pseudorandom bar code is characterized in that a plurality of pseudorandom sequences are alternatively coded for modulating the widths and light and shade changes of the strips. The pseudorandom bar code has the advantages of compatibility with remote measurement and close measurement, capability of forward measurement and backward measurement, simplicity in making a staff gauge, low requirement for a hardware system, small decoding operand, and rapidness and accuracy in identification.
Owner:丁梅 +3

Method for detecting vehicle motion information based on integration of binocular stereoscopic vision and optical flow

The invention relates to a method for detecting vehicle motion information based on integration of binocular stereoscopic vision and optical flow, and the method comprises the following steps of: analyzing and processing left and right image sequences taken by a binocular stereoscopic camera, and acquiring motion information of the three-dimensional space velocity and angle velocity of the car body through feature matching, three-dimensional reconstruction, feature extraction and optical flow estimation, in order to estimate motion information of the car body. As a new method for detecting car motion parameters, it is simply installed, applied to the actual operating environment of the car, high in precision and strong in real time. By the method, inaccurate reading numbers and measuring errors occurred by environmental factors can be effectively reduced, and the visual sensor has the advantages of simple structure and much information and can provide a mass of other information. The system selects ground points as interested feature points to effectively reduce interference of the motion object and improve estimation precision. At the same time, by the method, steadiness and robustness of the algorithm can be enhanced by fully utilizing depth information.
Owner:UNIV OF SHANGHAI FOR SCI & TECH

Streaming media application method in panoramic virtual reality roaming

The invention relates to a streaming media application method in panoramic virtual reality roaming. Panoramic streaming media integrated with additional information is applied to panoramic virtual roaming and the panoramic virtual roaming with continuous viewpoints is realized. The streaming media application method in panoramic virtual reality roaming comprises the following steps of: 1) compressing and encoding image data by utilizing a streaming media video compressing and encoding manner and integrating the additional information; 2) determining an initial user roaming location, returningcorresponding streaming media file information to a client through inquiring a database, analyzing streaming media files, and establishing a data structure used for buffer management; and 3) displaying panoramic images and the additional information, and displaying additional information corresponding to each frame of panoramic image in panoramic virtual roaming in a manner of continuous viewpoints. According to the streaming media application method in panoramic virtual reality roaming, the panoramic images and the additional information are compressed into a streaming media format, thus thedefects of the traditional network-based panoramic virtual roaming are overcome, the user waiting time is shortened, and a novel technical line is provided for the network data transmission in panoramic virtual reality roaming.
Owner:沈阳迅景科技有限公司

Method for preventing and distinguishing fake products by using internet and two-dimension codes

ActiveCN102930440ALarge amount of informationStrong error correction abilityCommerceSensing by electromagnetic radiationEntire populationThe Internet
The invention discloses a method for preventing and distinguishing fake products by using the internet and two-dimension codes. The method comprises the following steps of: 1) randomly setting a set of unique two-dimension codes for each product by a manufacturer; 2) logging on an official database of the manufacturer through the internet to realize butting, wherein each time the two-dimension codes are scanned, a two-dimension code counter automatically accumulates a count; 3) scanning and logging on to verify the two-dimensional codes; and 4) judging whether a product is genuine by displaying the counting numerical value of the two-dimension code counter and the related identity information of a two-dimension code recognizer on the two-dimension code recognizer which scans the two-dimension codes at the same time. The method has the beneficial technical effect that the two-dimension code recognizer is combined with the internet to quickly identify the authenticity of the product on the spot through simple scanning, so that the aims of identifying and cracking down on fake products by the entire population of a country and ensuring that the fake products have no place to hide and disappear from the scene are achieved.
Owner:成都终极码信息技术有限公司

Quickly configurable and real time rendering safety protection three-dimensional electronic map

InactiveCN101286240ARich means of operationIntuitive and vivid monitoring sceneMaps/plans/charts3D-image renderingVirtual deviceSecurity monitoring
The invention relates to a security three-dimensional electronic map for rapid deployment and real-time rendering, comprising a virtual device manager, an action pre-setter, a field manager, a renderer, a rendering resource distributor, a security monitoring three-dimensional model library and a user interface. The map applies a three-dimensional field map in the security monitoring system to replace the traditional two-dimensional electronic map and the expandable model library is designed according to the characteristics of the security monitoring system, thus realizing the rapid deployment of the electronic map. The models in the model library carry out the control on the complexity of the structure and the texture against the specific needs of the security monitoring, sharing of the rendering resources, rendering, reducing and other means are simultaneously adopted to realize the aim of real-time rendering. The map is in line with the application requirements on district division rendering, detail control and all-direction roaming of the security monitoring field. The concept of the virtual device is introduced, the expansion and compatibility of the device can be realized by the deployment of a database; the map can rapidly set up various fields, provide the real-time rendering performance, thus improving the visualization and the modernization level of the security monitoring system.
Owner:BEIHANG UNIV

Method and device for searching for contact persons in real-time interaction of mobile communication equipment

The invention discloses a method and a device for searching for contact persons in the real-time interaction of mobile communication equipment. The device comprises a user input module, a local storage module, a local searching module, a local ordering module, a local display module, a selection module and a display module, wherein the user input module is used for providing an input entry for a user to searching for the contact persons; the local storage module is used for storing information about the contact persons of the user; the local searching module is used for searching for the contact persons from the local storage module; the local ordering module is used for ordering the contact persons according to degrees of intimacy with the user; the local display module is used for displaying the information about the contact persons on a client interface; the selection module is used for the user to select the contact persons; and the display module is used for displaying the information about the contact persons. The method and the device have the advantages of bringing convenience for the searching of the user by arranging in front the contact persons intimate with the user, bringing convenience to communication between the user and the contact persons by adding a real-time communication contact way, accurately ordering the contact persons, and enabling the user to search for the contact information of the contact persons from a social network when the mobile communication equipment of the user is changed or lost.
Owner:BEIJING PEOPLE HAPPY INFORMATION TECH

Wave front correction method based on defocused image training

The invention discloses a wave front correction method based on defocused image training, and a device used by the method comprises an image acquisition module, a neural network module, a voltage conversion module and an actuating mechanism. The method comprises the following steps that the incident light is converged into defocused light spots through an optical prism; the image acquisition module is responsible for acquiring defocused light spots; after a large number of defocused light spot image training, the neural network module fits corresponding Zernike coefficients according to the image characteristics transmitted by the image acquisition module; the voltage conversion module establishes the relationship between the Zernike coefficient and a driving voltage; and finally, an execution mechanism realizes the correction of the wave front distortion generated by the atmospheric turbulence according to the fitted Zernike coefficients. The wave front correction method based on defocused image training does not need to use a Hartmann wave front detector and the like, and improves the utilization rate of light beam energy. The loop iteration process is not needed, the bandwidth is high, and the requirement of real-time performance is met. Only a single defocused image is needed to be collected for neural network training, so that the workload of image collection is reduced, and the information quantity of sample light spots is increased.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI

Specific scene model upgrading method and system based on federated learning

The invention discloses a specific scene model upgrading method based on federated learning. The method comprises the following steps: selecting an AI terminal; marking all scene data in a marking module of each AI terminal, storing the scene data in the local of the terminal, calling an intelligent classification and statistics module to perform classification statistics on the scene data, and reporting the scene data to an alliance statistics module; forming a federated learning alliance by the terminals similar to the usage scenarios, wherein after a preset updating condition is met, the alliance statistical management module triggers and starts transverse federation learning training of the updating model; screening the training data before the training of the updating model; performing a learning updating process by the transverse federation; in the process, the preset updating condition can be modified along with the increase of the number of terminals and the increase of data volume, and iterative updating is continued. According to the invention, the problems of low model updating and upgrading efficiency of the artificial intelligence terminal and low accuracy in an actualuse scene can be solved.
Owner:广州英码信息科技有限公司

Identification system based on combination of dorsal hand vein and hand shape and method thereof

An identification system based on combination of a dorsal hand vein and a hand shape and a method thereof are disclosed. According to a vein imaging characteristic, acquisition modes of two modes: far-infrared thermal imaging and near-infrared imaging are designed. According to an infrared thermal imaging theory, an infrared thermal imager is used to realize far-infrared dorsal hand vein imaging. According to a near infrared imaging theory, a LED array with an 850nm peak wavelength is used to emit infrared light to irradiate back of the hand. A near infrared CCD is used to collect dorsal hand vein images so as to realize the near infrared dorsal hand vein imaging. By using the identification method of the combination of the dorsal hand vein and the hand shape, the acquired image is processed so as to extract a characteristic vector of the dorsal hand vein and the hand shape. The characteristic vector is matched with the stored characteristic vector so as to obtain an identification result. According to the invention, two kinds of biological information on the hand are used and collected once. Through carrying out extraction of two kinds of the biological information and identification on the acquired image, a collected information amount can be increased and an identification rate can be increased too. Compared to single biology identification, the method of the invention is accurate and secure, and has anti-falsification and applicability.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY

Quick detecting method of edible vegetable oil quality

The invention discloses a quick detecting method of the edible vegetable oil quality through using an attenuated total reflection Fourier infrared spectroscopy, and the problems that the current detecting method can not verify whether the edible vegetable oil is repeatedly heated at high temperature or whether swill-cooked dirty oil is mixed in fresh edible vegetable oil can be solved. The method comprises the steps of: indicating the change of oil ingredients by fully utilizing the changes of the peak shape and the peak height of an infrared second derivative spectrometry; measuring the content of trans-fatty acids in the edible vegetable oil through absorbance of a characteristic absorption peak at 966.50cm<-1>; judging whether the edible vegetable oil is heated through the change of the characteristic peak at 988cm<-1>, and calculating the heating time; and determining whether the edible vegetable oil is swill-cooked dirty oil through the change of the characteristic absorption peak at 988cm<-1>. The quick detecting method of the edible vegetable oil quality is simple in operation, low in cost, free of pollution, high in detecting precision, and quick and accurate and can be capable of judging an edible vegetable oil sample to be detected which is repeatedly heated at the high temperature, the swill-cooked dirty oil and the swill-cooked dirty oil mixed in the fresh edible vegetable oil.
Owner:辽宁省分析科学研究院

Global characteristic visulization and local characteristic combined malicious code classification method

The invention discloses a global characteristic visulization and local characteristic combined malicious code classification method. The method comprises the steps of calculating three characteristicvalues for blocking of a malicious code binary file, wherein each characteristic value correspondingly fills one color channel and the malicious code binary file is visualized into an RGB (Red, Greenand Blue) color image; then extracting global characteristics of the RGB color image, and extracting local characteristics from a core region of the malicious code binary file; and performing family classification on malicious codes in combination with the global and local characteristics. With the global characteristic visulization and local characteristic combined malicious code classification method, the amount of information represented by the malicious codes is increased, the image stability and an error-tolerant rate of a classification model are improved, the local characteristics are extracted from the core region of the malicious code binary file to make up for the defect that the grouping capability of the global characteristics is inadequate when a malicious code variant changesgreatly; furthermore, the combination of the global characteristics and the local characteristics has stronger robustness when the changeful malicious code variant is faced, and the classification accuracy of the malicious codes is improved to a great extent.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY +1

Distributed fiber monitoring method and system for strains and stresses of ship lock structure

The invention brings forward a distributed fiber monitoring method and system for strains and stresses of a ship lock structure. The system comprises distributed sensitive optical cables, a data acquisition device, and a data processing and analyzing module; and the distributed sensitive optical cables are laid into tops and bottoms or inner surfaces and outer surfaces of reinforced concrete surface layers of a lock head base plate, a water delivery gallery, a lock chamber base plate, and a lock chamber wall by a way of binding with main ribs so as to form a U-shaped loop. After concrete pouring is completed for laying of the distributed sensitive optical cables into the tops and bottoms or inner surfaces and outer surfaces of the reinforced concrete surface layers of the lock head base plate, the water delivery gallery, the lock chamber base plate, and the lock chamber wall by a way of binding with main ribs, the distance between the sensitive optical cables and the surfaces of the concretes is 5 to 10cm; and the sensitive optical cables are deformed synchronously with the reinforced concrete structures and optical fiber sensors generate corresponding stresses. And a data acquisition station is established at the top of the lock head; and the laid sensitive optical cables lines are connected to the data acquisition station by optical cables.
Owner:NANJING UNIV +2

Range image non-linear subspace recognition method

The present invention provides a method for distinguishing nonlinear subspace of one-dimensional distance image which belongs to field of radar target recognition. Target one-dimensional distance image is transferred nonlinearly and mapped to high-dimensional characteristic space, nonlinear regular sub-image characteristics of each kind of target is obtained by characteristic transform matrix of high-dimensional characteristic space to form nonlinear sub-image space of each kinds of target, when the radar one-dimensional distance image of target is input, the sort of one-dimensional distance image is determined according to Euclidean distance between nonlinear regular sub-image and nonlinear sub-image space. Step: radar one-dimensional distance image training vector of target is determined; between-class scatter matrix sB after nonlinear transform and kernel function are determined; nonzero eigenvalue of C and corresponding eigenvector are determined; kind-in scatter matrix Q is determined; nonzero eigenvalue of Q and corresponding eigenvector are determined; all training one-dimensional distance image nonlinear regular sub-image of each kind target are determined; nonlinear sub-image space of each kind of target is determined; input one-dimensional distance image nonlinear regular sub-image of target is dertermined; Euclidean distance between nonlinear regular sub-image and nonlinear sub-image space is determined; sort number of input target one-dimensional distance image is determined.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Analysis method of unmanned aerial vehicle detection range

ActiveCN106127853AIncrease the speed of the intersectionLarge amount of informationImage enhancementImage analysisTerrainColor temperature
The invention discloses an analysis method of an unmanned aerial vehicle detection range. The analysis method comprises the following steps: S1: dividing a target region into grids, and calculating the area of a three-dimensional terrain corresponding to each grid; S2: constructing a virtual camera view frustum, carrying out intersection calculation on the virtual camera view frustum and the three-dimensional terrain through GPU (Graphics Processing Unit) automatic cutting, calculating the detection range of an unmanned aerial vehicle wave beam, obtaining a practical region area detected by the one-time wave beam scanning of the unmanned aerial vehicle, and meanwhile, recording the irradiation duration and distance of all grids in a boundary line; and S3: in a whole detection process, carrying out statistics on the practical region area detected by each-time scanning wave, and the irradiation duration and distance of all grids in the boundary line, and carrying out coloring on the grids according to the irradiation area, duration and distance of the grids. By use of the analysis method of an unmanned aerial vehicle detection range, the detected terrain is preprocessed, the detection range can be quickly calculated through hardware cutting, detection information is displayed through a color temperature map, an amount of information is large, and an effect is visual.
Owner:THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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