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160 results about "Graphic recognition" patented technology

Normalizing method and system of hand drawing geometric figures

The invention provides a normalizing method of hand drawing geometric figures. The method comprises following steps of (1) collecting drawing track information between a drawing start point and a terminal point on a screen; (2) extracting geometric feature parameters of drawn tracks; (3) according to the geometric feature parameters of the drawn tracks, calculating eight feature values used for classification, comparing the eight feature values with feature ratio value regions corresponding to all kinds of geometric figure types, and according to comparison results, judging the geometric figure type of the drawn tracks; (4) extracting feature points and feature parameters on the drawn track in the determined geometric figure type according to features of different figures, and fishing drawing; and (5) using the feature points as hot points for future figure correction of users. The invention also provides a method for achieving the above method. According to the invention, while users can still personally draw geometric figures, re-drawing accuracy of the geometric figures is effectively improved; and a problem of a failure to meet classroom teaching requirements of hand drawing figures caused by inaccuracy of the hand drawing figures in classroom teaching is solved.
Owner:HUAZHONG NORMAL UNIV

Mobile phone temperature and power consumption detection experimental system and detection method thereof

The invention provides a mobile phone temperature and power consumption detection experimental system and a detection method thereof. A robot manual operation module is used for simulating the operation of the fingers of a user on a mobile phone screen, and is controlled to finish a whole set of operation processes via graphics recognition; an operation box is used for setting the robot manual operation module, a mobile phone bracket, a high-definition high-speed video camera and a detection module; the mobile phone bracket is used for fixing a mobile phone to be tested in the operation box; an infrared imaging instrument can be used for accurately capturing the small change of the temperature of the mobile phone to be tested, and performing analysis and processing; and the detection module is used for controlling the robot manual operation module, and giving a mobile phone temperature rising comfort evaluation report specific to the temperature rising comfort of the mobile phone to be tested. The temperature rising situation of each side of the mobile phone under various operation instances are detected at different environmental temperatures, and a temperature profile of mobile phone temperature stabilization time, a highest temperature and highest temperature time and a temperature comfort evaluation report are given.
Owner:CHINA ACADEMY OF INFORMATION & COMM

Intelligent automatic door as well as graph recognition unlocking method and automatic control method of intelligent automatic door

The invention provides an intelligent automatic door as well as a graph recognition unlocking method and an automatic control method of the intelligent automatic door, and relates to the field of safety doors. With the adoption of the intelligent automatic door as well as the graph recognition unlocking method and the automatic control method of the intelligent automatic door, the problem that an intelligent door is unsafe to be locked and unlocked with a chip card is solved. A microprocessor is adopted to intelligently control the electrically-control automatic door, a graphic code is drawn through a graph recognition code recognizer, and accordingly, the problem that the chip card is prone to be stolen or the safety is low if a digital code is adopted is solved. A graph recognition code is adopted, a user can set the graph recognition code according to requirements of the user and can draw the graph recognition code during unlocking, the drawn code can be sent to the microprocessor, the microprocessor compares the received graph code with the set graph recognition code, and when the similarity is up to 90% or higher, the microprocessor sends an unlocking drive signal to the electrically-control automatic door. The user can also set a new graph recognition code before going out or set several graph recognition codes simultaneously, so that the graph recognition code is not prone to be revealed stolen, and the safety is high. The intelligent automatic door is applied to a safety door.
Owner:李云祥

Three-dimensional graph recognition method, device and apparatus and storage medium

The invention discloses a three-dimensional graph recognition method, device and apparatus and a storage medium. The method comprises: obtaining point cloud of a target three-dimensional model, preprocessing the point cloud of the target three-dimensional model to obtain a target two-dimensional array and a mapping relationship between points in the target three-dimensional model and two-dimensional pixels, obtaining a target two-dimensional image corresponding to the target three-dimensional model based on the target two-dimensional array and the feature data of each point in the point cloudof the target three-dimensional model, performing image recognition on the target two-dimensional image based on a two-dimensional image recognition network, and mapping the target two-dimensional image recognition result to a target three-dimensional model to obtain a target three-dimensional graph recognition result. By utilizing the technical scheme provided by the invention, a three-dimensional graph processing problem can be converted into a two-dimensional image processing problem. By utilizing the characteristics of more mature two-dimensional image recognition, high efficiency and accurate recognition, a more reliable three-dimensional graph recognition result is obtained, less training data is needed, and the cost and time are saved.
Owner:YADIAN SOFTWARE TECH SHANGHAI CO LTD

Fire-fighting component numbering method and system for automatic fire alarm planar graph, intelligent terminal and storage medium

ActiveCN111798649AImprove the efficiency of identifying informationAvoid missingGeometric CADFire alarm electric actuationAlgorithmData bank
The invention relates to a fire-fighting component numbering method and system for an automatic fire alarm planar graph, an intelligent terminal and a storage medium, and relates to the technical field of automatic fire alarm, and the method comprises the steps: inputting a CAD drawing of the automatic fire alarm planar graph; obtaining divided fireproof partitions based on identification of partition multi-segment lines of a preset partition layer in the CAD drawing; performing graphic recognition based on component graphic symbols pre-entered in a component database to obtain fire-fighting components in the fire-fighting partitions; screening to obtain an electric connecting wire connected between the fire-fighting components; acquiring a fire-fighting loop formed by connecting the electric connecting wires, and identifying and acquiring an end point of the fire-fighting loop; and sequentially generating numbers by taking the end points of the electric connecting wires as starting points and taking the electric connecting wires as fire-fighting components, and corresponding generating fire-fighting component information of the generated numbers. The method has the effect of improving the numbering efficiency of the fire-fighting components in the automatic fire alarm plane graph.
Owner:深圳市富思源智慧消防股份有限公司

System and method for tower crane collision prevention based on graphics recognition technology

The present invention especially relates to a system and method for tower crane collision prevention based on a graphics recognition technology, and relates to the tower crane technology field. The system comprises: an image obtaining device configured to obtain image information; a first image processor configured to binaryzation, filtering, edge detection and interest region extraction and collision object extraction processing of an obtained image to complete distance measurement and send a distance measurement result to a control processor; a second image processor configured to perform feature point detection and stereo matching processing of the obtained image to complete distance measurement and send a distance measurement result to a control processor; a sensor group configured to obtain tower crane motion information; the control processor configured to determine whether the collision happens or not according to the distance measurement result and tower crane motion information and emit an alarm instruction in the condition that it is determined that the collision happens; and an alarm device configured to emit alarm information according to the alarm instruction sent by the control processor. The intelligence degree is high, precision is high, and the applicability is wide, etc.
Owner:王修晖

Damper fault detection method and system based on intelligent pattern recognition

The invention relates to the field of artificial intelligence, and provides a vibration damper fault detection method and system based on intelligent pattern recognition, and the method and system employ a pattern recognition method for defect recognition, and comprise the steps: obtaining a surface gray image of a vibration damper; obtaining the uniformity of each pixel point on the surface gray level image of the shockproof hammer; obtaining a plurality of connected domains on the surface grayscale image of the shockproof hammer; calculating a reconstructed gray value of a pixel point in the connected domain to obtain a reconstructed gray image; segmenting the reconstructed grayscale image to obtain an in-contour image; if the texture exists in the image in the contour, judging that the stockbridge damper has defects; if no texture exists in the image in the contour, judging that the shockproof hammer is a qualified product; and classifying the defects of the shockproof hammer according to the texture shape in the image in the contour. Therefore, according to the damper fault detection method and system based on intelligent pattern recognition, defect detection and recognition can be achieved, and the detection efficiency is high.
Owner:JIANGSU SHUANGHUI FUTAI ELECTRIC

Method and system for judging consistency of metering device based on pattern recognition

The invention discloses a method and a system for judging the consistency of a metering device based on pattern recognition. The method comprises: collecting images of different parts of an inspectedammeter by an industrial microscope; conveying the collected images to a determination system for image processing; acquiring and storing feature signals of binary images and the images of the different parts of the inspected ammeter into a database as standard feature signals of ammeters of the inspected batch; obtaining feature signals of images of different parts of a delivered ammeter or an onsite ammeter of the same batch as the inspected ammeter; and comparing the feature signals of the delivered ammeter or the onsite ammeter with the standard feature signals stored in the database to obtain the similarity, and determining the delivered ammeter or the onsite ammeter is an ammeter as same as the inspected ammeter according to the similarity. The method provided by the invention can automatically identify that whether the ammeter delivered by the ammeter supplier and the inspected ammeter are in the same batch and whether the onsite ammeter installed on the user site is artificially replaced, thereby reduce the manual workload, and improving the working efficiency.
Owner:STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +1

Knitted fabric pad dyeing process anomaly detection method

The invention relates to the technical field of pattern recognition, in particular to a knitted fabric pad dyeing process anomaly detection method, which can be realized by an artificial intelligence system, an artificial intelligence optimization operation system or artificial intelligence middleware, and comprises the following steps of: obtaining a gradient magnitude of each pixel point in a gray image of a pad-dyed knitted fabric image, determining a gradient amplitude level of each pixel point, and further determining a gradient abnormal value; determining a global abnormal coefficient and a local abnormal coefficient according to the gradient magnitude level and position of each pixel point; and according to the gradient abnormal value, the global abnormal coefficient and the local abnormal coefficient, realizing knitted fabric pad dyeing process anomaly detection. According to the method, the pattern recognition technology is utilized, the pad dyeing abnormal condition of the knitted fabric is accurately detected through data processing and calculation, then reliable detection of the abnormal reason of the pad dyeing process is achieved, and the method can be used for development of computer visual and auditory software and other application software.
Owner:南通倍拓工贸有限公司
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