49 results about "Virtual reconstruction" patented technology

The invention discloses a teleoperation-device-based virtual reconstruction system and a teleoperation-device-based virtual reconstruction for a nuclear radiation environment. The virtual reconstruction system for the nuclear radiation environment comprises a front-end subsystem arranged on a mobile device, wherein the front-end subsystem is connected with a background subsystem through a communication cable. The virtual reconstruction system for the nuclear radiation environment acquires the information of the nuclear radiation environment through positioning measurement equipment, gamma image acquisition equipment and a gamma spectrometer, which are arranged on the front-end subsystem, and transmits the information of the nuclear radiation environment to the background subsystem for processing through the communication cable by front-end communication equipment to create a virtual scene of the nuclear radiation environment. A nuclear radiation environment field can be measured in real time, the virtual scene can be reconstructed on line, and nuclear radiation environment measurement and nuclear radiation environment reconstruction are integrated, so that reconstruction efficiency is improved; and a three-dimensional model of a radiation source and the attribute of the radiation source are associated, so that rich visual information can be provided for staff, the working hours of the staff in a radiation field are reduced, and the nuclear radiation level of the staff can be reduced as much as possible.

A method of creating a surface model of an intracranial aneurysm in an artery having a lumen, the aneurysm having a neck and a dome and the virtual reconstruction of the parent artery across the lateral extension of the aneurysm neck. The method includes the steps of: determining a center and radius of the artery over the lateral extension of the aneurysm; determining the boundary points that mark the boundary between the aneurysm neck and the artery; determining the angle of the aneurysm neck with respect to the artery, for various cross sections of the neck; determining the length of the neck; determining the height of the dome; estimating the area of the neck; and creating the surface model of the intracranial aneurysm in the artery, using the results from the previous steps.

The invention relates to a virtual reconstruction heterogeneous integrated ubiquitous network system architecture, which consists of a terminal extending layer, a network access layer, a virtual reconstruction layer and an application layer, wherein the terminal extending layer comprises a terminal directly accessing the network layer and a tail network indirectly accessing the network layer through the terminal; the network access layer comprises an access network and a core network; the virtual reconstruction layer realizes integration of multiple heterogeneous networks and supports control interaction and data interaction between heterogeneous network equipment; the application layer consists of service middleware and an application server; and a requirement is supplied to the virtual reconstruction layer, and the virtual reconstruction layer is used. By the system architecture, the resource utilization rate and the system robustness are improved; and more ways and more modes are supplied to expanding the upper layer application.

The invention discloses a visual stereo modeling method and system. The method comprises the following steps that: environment data collected by terminal devices from environments where the terminal devices are located are acquired; fusion processing is performed on the environmental data, the poses of the terminal devices are obtained, the three-dimensional models of the environments where the terminal devices are located are built based on the poses of the terminal devices and the environment data; and virtual reconstruction is performed on the three-dimensional models through using the AR technology, so that the virtual three-dimensional scenes of the environments where the terminal devices are located are obtained. According to the visual stereo modeling method and system, the fusion processing is performed on the environmental data collected by terminal devices, so that the virtual three-dimensional scenes can be obtained; the scenes perfectly integrate scene modeling with real environment data, and therefore, the display of the environments where the terminal devices are located is comprehensive and three-dimensional, users can directly, effectively, and comprehensively obtain the relevant information of the corresponding environments through the virtual three-dimensional scenes, and thus, problems existing in the prior art can be solved.

An instruction to generate a cloud instantiation of a secondary storage system is provided. One or more secondary storage clusters are virtually rebuilt in the cloud instantiation of the secondary storage system. A new cloud instance of a user virtual machine is deployed based on at least a portion of data stored in the one or more rebuilt secondary storage clusters of the cloud instantiation of the secondary storage system. A version of at least the portion of the data of the one or more rebuilt secondary storage clusters is provided to a cloud deployment server.

The invention discloses a flap perforating branch artery locating method based on 3D printing reconstruction. The flap perforating branch artery locating method is characterized in that views and dataare transmitted to a processing device through DICOM images of human CT and MR, then aiming at the view and data, the processing device conducts the following processing steps that a, the views are compared and adjusted; b, the positions of selective points and determination points are firstly defined; c, a range domain is adjusted to determine the point-getting trend; d, point drawing tracing isconducted; e, a digitized 3D splitting model is manufactured; f, according to the model in the step e, 3D printing is conducted to obtain a physical model. The flap perforating branch artery locatingmethod has the advantages that the position of the flap perforating branch arteries can be accurately marked, at the same time, corresponding human organs are located and printed according to different parts, so that the surface of the 3D model has mark positions, corresponding to the skin, of the flap perforating branch arteries, the mark positions correspond to the human organs one to one, through model comparison, the positions, corresponding to the skin, of the human flap perforating branch arteries can be accurately judged, and the positions and shapes of hundreds of perforating branch arteries of all parts of the whole body can be accurately subjected to digitized virtual reconstruction and 3D physical printing.

The invention discloses a phased array-MIMO radar mode transmit-receive wave beam forming anti-interference method, which combines sub-array level array structure characteristics with an FPMIMO radar working mode, adopts a uniform overlapping sub-array division mode for a one-dimensional array, and forms signal receiving and transmitting wave beams in a phased array mode by each sub-array in a signal transmit-receive process. Receiving signals of all sub-arrays can be equivalent to receiving signals of a sub-array level ULA, INCM reconstruction and steering vector estimation are carried out based on the sub-array level ULA, receiving and transmitting wave beams of the FPMIMO radar are estimated by carrying out virtual extension on the steering vector to form the steering vector, virtual reconstruction is carried out by utilizing a main feature vector and a feature value of the reconstructed INCM, and virtual extension INCM of the FPMIMO radar is obtained. Therefore, the robust transmitting and receiving beam forming of the FPMIMO radar of the one-dimensional uniformly overlapped sub-arrays is realized. According to the method, the receiving capability of expected signals is enhanced, the suppression performance of interference signals is improved, and the method has the characteristics of low sidelobe, deep null, good robustness and the like.

The invention discloses a three-dimensional digital image acquisition method and equipment. The three-dimensional digital image acquisition method specifically comprises the following steps: S1, early-stage preparation, S2, image acquisition, S3, rotary scanning of an object, S4, image algorithm processing, S5, three-dimensional reconstruction of an image, and S6, data transmission and consultation. In the three-dimensional digital image acquisition method and equipment, virtual reconstruction of cultural relics can be realized; the purposes of completing three-dimensional acquisition of images and carrying out three-dimensional reconstruction on partially damaged and incomplete cultural relics are well achieved; therefore, the acquisition of the completed image is realized; in addition, three-dimensional image acquisition and creation can be carried out on some cultural relics with partially incomplete or partially damaged textures, the application function of the three-dimensional image acquisition technology is greatly enriched, use of cultural relic research protection workers is greatly facilitated, and meanwhile low-light compensation can be carried out when cultural relic scanning three-dimensional image acquisition is carried out.

The invention discloses a coal storage yard three-dimensional live-action reconstruction system and a coal quantity fast estimation method, and belongs to the technical field of the computer vision. Areconstruction system comprises a high-definition camera, an industrial-level four-rotor unmanned aerial vehicle, an unmanned aerial vehicle ground station and a data server; the high-definition camera, the industrial-level four-rotor unmanned aerial vehicle and the unmanned aerial vehicle ground station form a data collection part of the system; the industrial-level four-rotor unmanned aerial vehicle is used for loading the high-definition camera to acquire an orthographic image of a coal storage yard; the unmanned aerial vehicle ground station controls the unmanned aerial vehicle to fly according to a polling path in the coal storage yard; the data server receives the orthographic image acquired by the high-definition camera through a wireless network, performs coal storage yard three-dimensional virtual reconstruction and estimates the coal quantity. The system disclosed by the invention has the advantages that the system is suitable for the coal quantity estimation of the large-scale outdoor coal storage yard, and can be applied to the storage yard storage and transportation management of other industries; the coal quantity at the coal mine port, the coal transport port and the thermal power plant and like coal storage yards for producing or using the coal can be accurately checked.

The invention discloses a multiplexed subarray structure security check array, and the array employs a multiplexed subarray sparse array structure, and employs various working modes to achieve the virtual reconstruction of the full array. The security check array can reduce the number of array elements of the security array by a half or more, thereby greatly reducing the cost. Meanwhile, the design and arrangement complexity of the array elements are also reduced. The security check array can reduce the security check scanning time by a half or more, thereby greatly reducing the security checktime of a person. The security check array enables the imaging quality to be hardly affected on the basis that the cost and the scanning time are reduced. Moreover, the security check scheme is compatible with a mature automobile radar chip, so the design cost and complexity of the security check array is further reduced.

Embodiments relate to a method and a system for reconstructing a player's activity. The method comprises retrieving data related to a player, obtained during an activity, calculating estimates of features of the activity based on the data, receiving user input related to the features of the activity responsive to at least one of the estimates of features of the activity based on the data, and reconstructing at least a part of the activity based on the estimates of features of the activity based on the data and the user input. In an embodiment, the player's activity is a ball game, such as a game of golf.

Methods and systems for three-dimensional virtual reconstruction of a workpiece surface are provided. A workpiece is positioned on a display screen between the display screen and at least one imager. The imager acquires multiple images of the workpiece while (a) multiple light stripes are displayed and swept in a first directional orientation across the display screen, (b) multiple light stripes are displayed and swept in at least one second directional orientation across the display screen, and (c) multiple images for each position of the multiple light stripes at different exposure times are captured. From the multiple images, a difference caused by the workpiece in a width and a profile of the multiple light stripes is determined. That difference is used to calculate a depth value (z) of the workpiece at each imager pixel position (x, y). The calculated depth value is used to reconstruct a surface shape of the workpiece. In embodiments, the described transmittance light capture analyses are supplemented with reflectance light capture analyses.

A method for highly efficient virtual reconstruction of tooth dentition functional aesthetics form includes such steps as 1) scanning normal maxillary and mandibular dentition as standard template data; 2) scanning the current dentition requiring virtual reconstruction, recording the current dentition as data D1; 3) selecting a set of standard template data from that step 1) and recording the dataas data D2; 4) registering the data D2 with the data D1 by taking the unchanged part after reconstruction as a common area; 5) if that original tooth shape is to be preserved, extracting the three-dimensional data of the crown of each tooth in the data D1, registering the three-dimensional data on the corresponding tooth of the data D2, and obtaining the virtual prediction data; 6) if that original tooth shape does not need to be retained, the data D1 is directly replaced with the data D2 to obtain the virtual prediction data; 7) the virtual prediction data is three-dimensionally printed to present the entity of the prediction result. The reconstruction result of the invention can be directly used for digitally restoring the dental functional aesthetics form of the teeth, and the functional aesthetics design level of the operator is rapidly improved.

The invention discloses a quality-self-adapting wireless video coding method. Firstly, the dynamic texture synthesis method is adopted, a virtual reconstruction frame of a frame to be coded is constructed through a reconstruction frame of a coded image, then with the SSIM being used as the index, a threshold value is set to determine low-quality macro blocks in the virtual reconstruction frame, and finally, coding parameters of the low-quality macro blocks are regulated, and the macro blocks are coded more finely in the coding process, so that complex textures and marginal area macro blocks are better processed, and the user experience quality of the whole image is improved.

The invention provides an electronic transformer calibrator traceability method and system. The method comprises the following steps: a digital multimeter collects analog signals and converts the analog signals into a digital message; an upper computer carries out virtual reconstruction on the digital messages and then carries out error information superposition to form a reconstructed message; a message controller carries out timing control according to the reconstructed message; a tested electronic transformer calibrator collects the analog signals and the reconstructed message sent by the message controller and generates error information; and a comparison is made between the error information generated by the tested electronic transformer calibrator and the error information superposed by the upper computer to obtain test errors. The sample data of the digital multimeter is subjected to virtual reconstruction to enable the output digital message to be same with the message output by an actual electronic transformer merging unit, and by comparing the error information generated by the tested electronic transformer calibrator and the error information superposed by the upper computer, the test errorsof the tested electronic transformer calibrator is obtained; and therefore, full traceability work is finished.

A TBM-mounted virtual reconstruction system and method for a tunnel surrounding rock structure, the method including: obtaining image information of surrounding rock; receiving the image information of the surrounding rock; transforming and splicing pictures taken at different angles, to form a complete image reflecting the surrounding rock; recognizing and describing a surrounding rock feature of the complete image, and transmitting the annotated image to a virtual reconstruction module; displaying the complete image with a description of the surrounding rock feature by using a virtual reality device, to reflect surrounding rock situations at different angles/different positions. This has the advantages of high equipment automation, not prolonging the construction time, not requiring the sketcher to enter the tunnel, precise surrounding rock feature parameters, and supporting remote control.

The invention relates to a three-dimensional scanning method and especially relates to a panoramic human body three-dimensional scanning and virtual reconstruction method. The technical problem is howto provide the monocular video based panoramic human body three-dimensional scanning and virtual reconstruction method capable of performing 3D scanning on human body with a single camera, capable ofrealizing virtual reconstruction on human body data acquired through scanning and having low equipment requirements. In order to solve the above technical problem, the panoramic human body three-dimensional scanning and virtual reconstruction method is provided by the invention. An implementation device includes a camera, an annular guide support, a computer, a support rod and a pedestal. The method provided by the invention is non-intrusive in human body scanning and the system is low in price and simple in use. Prior databases are utilized fully and a data collection process is simplified.Most work can focus on comparison and matching of databases and data collection can be implemented in a computer aid manner completely.

The application provides a method, system for registration of a bone, and a trackable element, it is configured to obtain a mark point information which can be obtained from a certain operation performed by a distal end of a trackable element on a surface of the bone when a switch of the trackable element meets a setting condition corresponding to the operation; and to perform a virtual reconstruction of the surface of the bone according to the obtained mark point information and an image data of the bone which is obtained in advance. As a result, a precise registration of the patient's physical space coordinate system and image space coordinate system can be achieved, during which only one operator is enough for completing the registration. Therefore, operations with high accuracy and convenience are ensured, which can significantly improve the registration efficiency, and the operating experience of operators.

The invention relates to the technical field of robot digital twinning, in particular to a teleoperation attitude tracking estimation system and method which are applied to a complex environment. The system comprises a teleoperation mechanical arm, a motion capture system, a signal generator and at least three industrial cameras; the three industrial cameras are simultaneously connected with an external trigger signal device through signal lines, the motion capture system is in communication connection with the industrial cameras and cooperates with the industrial cameras to carry out three-dimensional attitude data acquisition, and visual marks are designed on the teleoperation mechanical arm; the motion capture system carries out image data acquisition, image data processing, data collection and production, data training iteration, data model storage and output to generate a coordinate system, so virtual environment 3D construction of an objective environment where the mechanical arm is located is determined; when a carrying task is not suitable for being operated by workers on site personally, a virtual 3D reconstruction model environment for a real objective environment is provided to assist operators in completing work, so the working efficiency is improved, and the possibility of collision is reduced.