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453 results about "Data registration" patented technology

Three-dimensional visual navigation method based on multi-sensor information fusion

The invention relates to a three-dimensional (3D) visual navigation method based on multi-sensor information fusion. The multi-sensor data registration and fusion are finished based on acquiring multi-sensor data by means of a photoelectric sensor (infrared and visible lights), an airport radar monitor system (air traffic control radar and ground surveillance radar) and navigation positioning systems (radio navigation positioning system and global positioning system); and the detection, identification, track and behavior prediction are carried out on the targets (obstacles, humans, vehicles and planes) in the air or on the ground; the plane safety take-off and straight-in approach optimization information is automatically generated according to the target information in the air or on the ground; the target information and the plane safety take-off and straight-in approach optimization information are fused and displayed in an airport 3D scene to form a 3D visual navigation; and the system can automatically generate the 3D visual navigation information and transmits the navigation information to the aircraft via the GPS to realize the 3D visual navigation on the aircraft. The realization of the method comprises the following specific steps of: firstly, acquiring the multi-sensor data; secondly, registering and fusing the multi-sensor data; thirdly, detecting, identifying and tracking the targets in the air or on the ground by utilizing the fused data, and predicting the behavior of the targets; fourthly, establishing a 3D model of the airport, and fusing the targets and the behavior prediction data thereof and displaying the data in the airport 3D scene to form a 3D visual navigation system; and finally, carrying out the 3D visual navigation on the aircraft by means of the 3D visual navigation system to realize the safe take-off or approach of the aircraft.
Owner:内蒙古盛邦北斗卫星信息服务有限公司

Three-dimensional point cloud data registration method and stitching method

The invention relates to a three-dimensional point cloud data registration method and a stitching method. The three-dimensional point cloud data registration method comprises steps: first point cloud data and second point cloud data correspondingly obtained when a three-dimensional scanning device scans calibration target objective space comprising multiple target balls at a first visual angle and a second visual angle respectively are acquired, wherein the calibration target is always placed at the same position in a common scanning area between the first visual angle and the second visual angle when the three-dimensional scanning device performs scanning at the first visual angle and the second visual angle respectively; in the first point cloud data and the second point cloud data, a first ball center point cloud and a second ball center point cloud are found out respectively, wherein both the first ball center point cloud and the second ball center point cloud contain ball center coordinates of all target balls in the calibration target; and according to the conversion relationship between the first ball center point cloud and the second ball center point cloud, the first point cloud data and the second point cloud data are registered to the same coordinate system. The method uses the calibration target as a bridge for matching of data scanned at two visual angles, the imaging aberration degree of a target ball surface is smaller than that of a plane, and the registration accuracy is improved.
Owner:SUTENG INNOVATION TECH CO LTD

Registering method and system of face identification access control

The invention provides a registering method and system of face identification access control. The system comprises a mobile terminal, a server and at least one access control device; the method comprises following steps of associating the mobile terminal with an indoor unit; sending the associated mobile terminal information to the server; collecting face data through the build-in camera of the mobile terminal; sending the collected face data information to the server; receiving and storing the face data information sent from the mobile terminal by the server; searching the access control device associated with the mobile terminal information; informing the access control device of downloading the face data information; receiving the downloading notice of the server by the access control device; downloading the face data from the server; registering the downloaded face data in the access control device; associating with a user; and finishing registering. According to the method and the system provided by the invention, the face data can be updated timely; the face can be identified and registered very conveniently; moreover, the face database is enriched; and the identification rate of the access control device in identifying the face is improved.
Owner:FUJIAN STAR NET COMM

3D point cloud data registration method, device, device and readable storage medium

The embodiment of the invention discloses a three-dimensional point cloud data registration method, a device, a device and a computer-readable storage medium. The method includes using RGB-D camera collect a plurality of images and correspond point cloud data from a plurality of angles simultaneously including an object to be measured and a manual identification map, and that point cloud data of the plurality of frames can be splice into a panorama of the object to be measured; According to RGB-D camera internal parameter matrix and distortion coefficient, and pixel coordinate value of presetcharacteristic point of artificial identification map in each image, calculate and obtaining rotation matrix and translation matrix of camera corresponding to each image; and D camera internal parameter matrix and distortion coefficient and pixel coordinate value of preset characteristic point of artificial identification map in each image; computing The point cloud data and the corresponding rotation matrix and translation matrix to obtain the point cloud data in the same coordinate system, and completing the registration of point cloud data. The application not only does not require the point cloud data set between different image frames, but also improves the registration efficiency of the three-dimensional point cloud data and reduces the registration error of the three-dimensional point cloud data.
Owner:GUANGDONG UNIV OF TECH

Morphology registration analysis-based method for detecting precision of precise main shaft rotation

The invention provides a morphology registration analysis-based method for detecting precision of precise main shaft rotation. A surface sample is installed on a to-be-detected precise main shaft; a control system controls the to-be-detected precise main shaft to be at a position at an angle theta; surface morphology graphs of the surface sample are collected in order, wherein the surface morphology graphs are obtained when the to-be-detected precise main shaft at complete circumference positions. A morphology data registration analysis processing system analyzes the plurality of surface morphology graphs and error evaluation is simultaneously carried out. According to the invention, a morphology of a surface sample that makes rotation with a precise main shaft is measured and subsequent morphology registration is analyzed and processed; there is no high precision requirement on the surface sample; and an expensive standard external circle profile or a complex testing system and a testing process are not needed. If a two-dimensional morphology/image sensor is selected for utilization, a radial rotation error of the main shaft can be measured; If a three-dimensional morphology measurement sensor is selected for usage, radial and axial rotation errors of the main shaft can be measured simultaneously. The utilization of a measurement sensor with high resolution enables main shaftrotation error detection with nanometer-level precision to be realized.
Owner:HARBIN INST OF TECH
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