99 results about "Virtual field" patented technology

The present invention presents a method for providing mobile gaming in a wireless communication network. The method includes provisioning a virtual game space operable for use with a virtual game. The virtual game space includes a plurality of virtual fields that correspond with cells in at least one wireless communication network. At least one notification of a real world event received from a mobile device of a player of the virtual game is processed, wherein state changes in the virtual game are related to the process events.

Various arrangements for controlling a head-mounted display of an augmented reality display are presented. A head-mounted display may be provided and may be configured to present a virtual field of view comprising a virtual object superimposed on a real-world scene. A controller may be provided and configured to modify display of the virtual object by the head-mounted display based on a first color of a real-world object in the real-world scene. The virtual object in the virtual field of view may be superimposed over the real-world object. A lumen output of the head-mounted display for displaying the virtual object may be decreased.

An arrangement includes a first computer having a first operating system, the first computer having a memory containing software derived from field controller software executed on physical field controllers of a building control system. The physical field controllers employ a second operating system. The software further contains an operating system abstraction layer operable to convert at least some operating system calls of the field controller software to corresponding calls in the first operating system.

In an example embodiment, a system for providing a height change command for an implement, comprises a height control module configured to interact with a computer, and configured to receive topographical data, provide a virtual field map based on said topographical data, provide a forward view polygon for an implement based on said virtual field map, and provide a height change command for said implement based on said forward view polygon and an implement control unit configured to receive said height change command and control movement of said implement.

An ultrasound imaging apparatus (10) for providing ultrasound images of a patient (12) is disclosed. The imaging apparatus (10) comprises an ultrasound acquisition unit (14) for acquiring ultrasound data (42) of a patient's body in a field of view (16), a position determining unit (24) for determining a position (26) within the patient's body. An ultrasound data transformation unit (30) is provided for transforming the ultrasound data in the filed of view on the basis of the determined position to transformed ultrasound data (42) in a virtual field of view (20) having a virtual viewing direction (28) different from the viewing direction of the ultrasound acquisition unit.

A virtual field of view of a virtual endoscope, which is positioned at a position corresponding to a detected position of an endoscope in a 3D medical image, is determined based on a position of a structure of interest, the corresponding position and a posture of the endoscope, and an angle of view of the endoscope, such that the position of the structure of interest is contained within the virtual field of view and the virtual field of view has continuity with the field of view of the endoscope. From the 3D medical image inputted, a virtual endoscopic image having the determined virtual field of view with the view point thereof being the corresponding position of the endoscope is generated. The generated virtual endoscopic image is displayed on a WS display.

An apparatus and a method for distorting add-on graphics to be composited with a streaming video feed comprising, receiving a streaming video feed captured using a real camera, said streaming video feed including an image frame taken from a particular view point and a particular field of view, said real camera introducing image distortions into the image frame, measuring a plurality of camera instrumentation data corresponding to at least said view point, said field of view, and a distortion parameters corresponding to the image distortions of the image frame, creating a virtual camera, setting the virtual view point and the virtual field of view of the virtual camera using the plurality of camera instrumentation data, generating add-on graphics having a size and an insertion position within the image frame based on the virtual camera, creating a distortion grid, distorting the add-on graphics to match the image distortions of the image frame, and compositing the distorted add-on graphics with the image frame of the streaming video feed.

Branch domain controllers (DCs) contain read only replicas of the data in a normal domain DC. This includes information about the groups a user belongs to so it can be used to determine authorization information. Password information, however, is desirably replicated to the branch DCs only for users and services (including machines) designated for that particular branch. Moreover, all write operations are desirably handled by hub DCs, the primary domain controller (PDC), or other DCs trusted by the corporate office. Rapid authentication and authorization in branch offices is supported using Kerberos sub-realms in which each branch office operates as a virtual realm. The Kerberos protocol employs different key version numbers to distinguish between the virtual realms of the head and branch key distribution centers (KDCs). Accounts may be named krbtgt_<ID> where <ID> is carried in the kvno field of the ticket granting ticket (TGT) to indicate to the hub KDC which krbtgt′ key was used to encrypt the TGT.

A software based method of automatically recording and scoring tests is practiced on a system including a computer, a digital pen and a sheet of digitized paper, the method first establishing a number of virtual fields on the digitized paper, each which may contain either one allowable mark, or a multiplicity of allowable marks, marking of the paper using the digital pen, and for each such mark determining the field in which the mark is made, if the field may contain only one allowable mark, then recording that mark, and if the field may contain more than one allowable mark, then using character recognition means to identify the mark, and then calculating a test result based on the marks made, the characters corresponding to each, and a scoring protocol.

The invention discloses a tower-type crane operation stimulating and training system, which comprises an operation console, a data acquisition system, a virtual field software system, a visual scene system, a linkage chair and a PC. Operation commands are sent by controlling an operating rod on the operation console; the data acquisition system acquires the operation commands through a USB interface; and the PC drives the virtual field software system according to the operation commands, displays the working process of a tower-type crane on the visual scene system, the scene change in the range of 4km<2> around a construction site and the condition of whether change, and meanwhile, a hydraulic servo linkage chair simulates a tower-type crane driving cab to swing in the range of +/-500mm above the tower body. The tower-type crane operation stimulating and training system integrates machine-electricity-automation-virtual reality technology into a whole, actively simulates the working process of the tower-type crane in real time, has the characteristics of real operation and life-like scene and is particularly used for training tower-type crane drivers.

The invention relates to a method for supporting the integrity measurement of boot files in trusted virtual domain of a zero-downtime machine. Management tool and boot manager of the virtual domain in privilege domain are modified to realize that the integrity measurement of the system boot files in the trusted virtual domain is just carried out when the system boot files are loaded, therefore, the safety and extensible problems for carrying out the integrity measurement of the system boot files in the trusted virtual domain when booting computer are overcome and the system flexibility are improved, and the arrangement of the trusted virtual domain including re-customizing or updating kernel system of virtual domain can be carried out dynamically during running process of computer, and data service of other virtual domain in the same hardware platform is not interrupted when booting trusted virtual domain. The measurable boot files comprise configuration files of virtual domain, boot configuration files of virtual domain and the files that are needed to be measured are designated by the boot configuration files of virtual domain. The method can cooperate with other trusted computing technology in virtual environment to build a complete virtual domain boot trusted chain.

The invention discloses a mandible firearm wound simulation method which comprises the steps of respectively building tetrahedron-hexahedron combined three-dimensional finite element models of temporal-mandibular joint concave articular surface, mandible and dejectile; then respectively conducting material assignment and assembling on the spongy bone, cortical bone and dejectile of the mandible, thus obtaining a complete mandible firearm wound mechanical model; determining model boundary conditions and loading different penetration speeds and conducting finite element analysis, thus obtaining the stress, strain and deformation fracture situation of all the parts of the mandible when suffering from penetration of dejectiles with different speed. The method can make up the defects of the current animal model when studying mandible firearm wound, provides biomechanics basis for studying mandible firearm wound, and is used for mandible firearm wound mechanism research, mandible firearm wound lethal effect evaluation, maxillofacial region protective equipment design and evaluation, mandible firearm wound medical evaluation and virtual field reconstruction.

The invention discloses a non-contact experimental method for measuring a heat constant of a high-temperature material, and belongs to the technical field of experimental mechanics and high-temperature test. An elastic modulus, a poisson ratio and a thermal expansion coefficient of the material under a high temperature are measured by combining a high-temperature digital speckle technology, a three-point bending technology and a virtual field technology. By the method, a charge coupled device (CCD) is used for recording speckle maps of a three-point bent test sample before and after thermal load; a full-field strain before and after the thermal load is calculated by a digital speckle method; the elastic modulus, the poisson ratio and the thermal expansion coefficient of the material under high temperature are calculated; and the elastic modulus, the poisson ratio and the thermal expansion coefficient of the material under high temperature can be measured at the same time.

The invention provides a substation construction disclosure method based on a virtual reality technology, being characterized in that a VR immersive virtual reality technology is adopted; related equipment is worn by interaction personnel; data in a computer is processed by utilizing a visual principle and is finally output to VR helmet equipment; by means of the characteristics of high immersionand high interactivity of a virtual reality technology, based on a three-dimensional virtual engine Unity3D engine, by fusing a GIS technology, a virtual reality VR interaction technology and other technologies, by fusing the basic geographic image, DEM data, an electric power engineering three-dimensional model and other data, the substation construction disclosure method based on a virtual reality technology can create a the three-dimensional geographic environment, can perform three-dimensional visualization, construction disclosure and construction simulation on transformer substation engineering construction, so as to form a dynamic process and a virtual field environment of construction disclosure; and the substation construction disclosure method based on a virtual reality technology establishes a dynamic model of construction disclosure, establishes a set of fully-interactive dynamic three-dimensional transformer substation environment, and improves the efficiency, accuracy andquality of construction disclosure by utilizing a three-dimensional transformer substation construction scene.

The invention discloses a method for synchronously characterizing anisotropic yield and hardening constitutive parameters of a metal material, which is used for solving the technical problem of poor practicability of the conventional method for characterizing the parameters of the metal material. The technical scheme is that a proper test piece configuration is designed, so that the test piece can simultaneously generate rich positive strain and shear strain under the action of simple tensile or compressive load, and the out-of-plane deformation of the test piece is at a lower level within a certain compressive strain range, thereby achieving the simultaneous characterization of anisotropic yield and anisotropic plastic hardening constitutive parameters of numerous metal materials by utilizing a virtual field method only by combining primary cyclic tensile-compression experiment and primary unidirectional tensile experiment. Compared with the anisotropic parameter characterization method in the prior art, the method can be completed on one single-axis testing machine without a biaxial stretching machine, a hydraulic expansion testing machine, a shearing experimental device and the like, and experimental equipment and an experimental process are simplified, and the practicability is good.

The invention discloses a virtual field sport broadcast method based on a mobile intelligent terminal. The method includes: (1) real-time collection of terminal data; (2) data preprocessing; (3) data backhaul; (4) data analysis; (5) match result broadcast; and (6) match result stored. The virtual field sport broadcast method based on the mobile intelligent terminal enables sportsmen to interact with each other through the way of contest and all sport participants to have a scene feeling so that a better sport experience can be provided.

The invention discloses a signal source positioning method for uniform velocity fields. The method comprises the following steps: firstly constructing hyperboloid equations of a signal source position by using a residual equation of the theoretical arrival time and observation arrival time of two sensor pairs; constructing a virtual field in a local coordinate system according to each hyperboloid equation; superposing and averaging all the hyperboloid equations in a space by utilizing a coordinate conversion technology so as to obtain an integral virtual field; and searching the position of the maximum value of the integral virtual field in the space by utilizing a common unconstrained optimization algorithm and taking the position as the signal source positioning result. The objective function of the integral virtual field has continuity and differentiability in the space, so that the positioning method has good resistance to the severe picking errors, and has the characteristics of being high in positioning speed and good in stability.