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102 results about "Mobile vision" patented technology

Mobile vision robot and measurement and control method thereof

The invention provides a mobile vision robot and a measurement and control method thereof. Positioning and state information of the mobile robot and a robot operating target is obtained through a machine vision detection method, and meanwhile, movement and other operation of the robot are controlled according to information provided by vision images; and the robot vision images are provided by two cameras, one camera is fixed to a mobile platform and used for acquiring images on the robot movement path, and the other camera is fixed to the tail end of a manipulator and used for acquiring detailed images of a manipulator operating target. According to the mobile vision robot and the measurement and control method thereof, the positioning and state information of the mobile robot and the specific target are calculated through an image distortion correcting and mode recognizing method according to the obtained image information, and then the robot is controlled to complete instructed action on a target object. Meanwhile, the invention provides a method for eliminating accumulative errors generated in the operating process of the robot through vision images. The mobile vision robot has the characteristics of high precision and high anti-interference capacity, complex environment support is not needed, and the mobile vision robot is suitable for various laboratories and factory environments.
Owner:XI AN JIAOTONG UNIV

Visual target plate device for calibrating component mounting attitude and calibration method

ActiveCN103335634AMeet the needs of flexible automation on-site assemblyPhotogrammetry/videogrammetryTarget surfaceEngineering
The invention discloses a visual target plate device for calibrating a component mounting attitude and a calibration method, and designs a visual target plate consisting of a visual target surface, an extending rod and a matched fixture. According to the visual target plate, a whole calibration method for a relative position relation of target points in the visual target plate as well as a visual target surface and matched fixture geometric relation is provided. The calibration method comprises the following steps of: calibrating the relative position relation of the optical target points on the target point by a single-camera photographing and measuring method through auxiliary target points which is formed by precision movement and have determined distances; and then controlling the visual target plate to do specific movement by a precisely controlled moving platform, and calibrating relative attitudes of a target surface coordinate system and matched fixture coordinates according to positions of the moving visual target points in the camera by a multi-point perspective algorithm. According to the designed and calibrated visual target plate device provided by the invention, the attitude of a mounting base in a machine body complex mechanism can be measured; and a requirement for flexible automatic site assembling of airplanes can be met.
Owner:SHANXI ZHIDIAN TECH CO LTD

Space-movable visual sensor array system and image information fusion method

The invention discloses a space-movable visual sensor array system and an image information fusion method. The space-movable visual sensor array system consists of a plurality of visual sensor nodes, a plurality of first-stage ground stations and a second-stage ground station, wherein the visual sensor nodes mainly consist of flight control modules, flight management modules, cameras, digital transmission radio stations, wireless network cards and micro-miniature rotor wing unmanned aerial vehicle bodies; and the first-stage ground stations and the second-stage ground station are both computers. The real-time image information fusion method realized by the system and provided by the invention comprises the steps of: initialization of a visual sensor array, image capturing of the visual sensor nodes, and image information fusion. According to the space-movable visual sensor array system and the image information fusion method, the real-time fusion of image information captured by the multiple micro-miniature rotor wing unmanned aerial vehicles is broken through, the effect and the efficiency of aerial photographing are improved, the large visual field visual coverage can be realized, and the space-movable visual sensor array system and the image information fusion method can be applied to situations required to carry out high-efficient and high-quality aerial photographing and instant image displaying on specific regions.
Owner:ZHEJIANG UNIV

System and method for intelligent movable detection of cutter damage, applied to workshop or production line

The invention discloses a system and method for intelligent movable detection of cutter damage, applied to a workshop or a production line. The system comprises a machine tool cleaning environmental cleaning system, an online early warning system, a movable visual diagnosis system and a server, wherein the online early warning system is used for real-time detection of a main shaft power/current signal of each machine tool in the workshop or the production line and wireless transmission of the signal to the server; the movable visual diagnosis system can realize position and navigation to a machine tool detection working station and collect an image of the cutter damage; the server can judge whether the main shaft power/current value of each machine tool in the workshop is abnormal and canreport abnormal machine tool information to the movable visual diagnosis system; and the movable visual diagnosis system is controlled to collect the image and process the image, so the type and the degree of the cutter damage can be further judged. The system and method disclosed by the invention have the beneficial effects that the movable visual diagnosis system is arranged in the workshop or the production line, and the online early warning system is used for assistance, so high-precision, efficient and intelligent cutter damage detection is realized for the multiple machine tools in the workshop or the production line.
Owner:NANJING UNIV OF SCI & TECH +2

Camera angle self-adaptive adjustment method for intelligent inspection robot

ActiveCN110728715ASolve the problem that the target deviates from the center of the robot's camera field of viewImplement extractionImage analysisTriangulationRadiology
The invention discloses a camera angle self-adaptive adjustment method for an intelligent inspection robot. The camera angle self-adaptive adjustment method comprises the following steps: establishinga monocular mobile vision measurement model; acquiring internal reference calibration data of the camera; according to a target point position of the robot initial image, determining image target points acquired by the robot at different subsequent moments; and solving a homography matrix, searching an image matching point corresponding to the target point in the initial image, realizing three-dimensional pose information of the same target point in a camera coordinate system acquired by the robot at different moments by utilizing a triangulation principle, and finally obtaining a deflectionangle of the camera. The camera angle self-adaptive adjustment method solves the problem that the target deviates from the visual field center of the robot camera when the intelligent inspection robotworks, can adjust the angle of the camera in a self-adaptive mode under the condition that robot positioning errors and pan-tilt rotation errors exist, can realize accurate positioning and accurate recognition of a target, and can complete intelligent inspection, fault diagnosis, recognition and early warning of the robot target.
Owner:NANJING INST OF TECH

Mobile vision inspecting equipment and method for detection of electric instruments

The invention discloses mobile vision inspecting equipment and method for detection of electric instruments. The equipment comprises a monitoring center and a mobile device, wherein the mobile device is divided into a visual information acquisition unit, an information processing and control unit, a wireless network communication unit, a positioning device and a power device; the mobile device moves through sliding rails which are pre-paved; when the mobile device moves to electrical equipment, the information of the instruments or switch state information is collected through the visual information acquisition unit, the information is sent to the information processing and control unit for information processing, and the wireless network communication unit sends the processed information to the monitoring center for information regulation, so that the purposes of inspecting a large-scale electric instrument group and quickly and accurately determining failure sites are realized. According to the mobile vision inspecting equipment and method disclosed by the invention, massive tedious equipment failure monitoring operations are omitted, so that the working efficiency is improved, and automatic monitoring of the failure of the large-scale electric instrument group is realized.
Owner:HOHAI UNIV CHANGZHOU

Mobile visual focus based image vision salient detection method

The invention provides a mobile visual focus based image vision salient detection method. The mobile visual focus based image vision salient detection method includes inputting an original image, applying an image based partitioning algorithm to partitioning the original image into K areas, performing quantization and high-frequency color screen on the original image, using a partition image to obtain partition areas corresponding to a quantization image, performing area comparison and calculation to obtain a salient value of some area so as to obtain an initial salient image, using an image center as an initial visual focus to perform weighting calculation on the initial salient image, using a salient attraction module to calculate a moving distance and a moving direction of a visual focus so as to obtain the next visual focus until the current focus distance and the last focus distance are smaller than 1, and using a final visual focus to weight a salient image obtained by a visual focus prior to the final visual focus so as to obtain a final salient image. Compared with image vision salient detection methods in the prior art, the mobile visual focus based image vision salient detection method has the advantages of being high in accuracy of the salient image, and capable of evenly highlighting salient objects and well inhibiting image backgrounds.
Owner:EAST CHINA UNIV OF SCI & TECH
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