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41842results about "3D modelling" patented technology

Generation of a computerized bone model representative of a pre-degenerated state and useable in the design and manufacture of arthroplasty devices

Disclosed herein is a method of generating a computerized bone model representative of at least a portion of a patient bone in a pre-degenerated state. The method includes: generating at least one image of the patient bone in a degenerated state; identifying a reference portion associated with a generally non-degenerated portion of the patient bone; identifying a degenerated portion associated with a generally degenerated portion of the patient bone; and using information from at least one image associated with the reference portion to modify at least one aspect associated with at least one image associated the generally degenerated portion. The method may further include employing the computerized bone model representative of the at least a portion of the patient bone in the pre-degenerated state in defining manufacturing instructions for the manufacture of a customized arthroplasty jig. Also disclosed herein is a customized arthroplasty jig manufactured according to the above-described method. The customized arthroplasty jig is configured to facilitate a prosthetic implant restoring a patient joint to a natural alignment. The prosthetic implant may be for a total joint replacement or partial joint replacement. The patient joint may be a variety of joints, including, but not limited to, a knee joint.
Owner:HOWMEDICA OSTEONICS CORP

Simulation gridding method and apparatus including a structured areal gridder adapted for use by a reservoir simulator

A Flogrid Simulation Gridding Program includes a Flogrid structured gridder. The structured gridder includes a structured areal gridder and a block gridder. The structured areal gridder will build an areal grid on an uppermost horizon of an earth formation by performing the following steps: (1) building a boundary enclosing one or more fault intersection lines on the horizon, and building a triangulation that absorbs the boundary and the faults; (2) building a vector field on the triangulation; (3) building a web of control lines and additional lines inside the boundary which have a direction that corresponds to the direction of the vector field on the triangulation, thereby producing an areal grid; and (4) post-processing the areal grid so that the control lines and additional lines are equi-spaced or smoothly distributed. The block gridder of the structured gridder will drop coordinate lines down from the nodes of the areal grid to complete the construction of a three dimensional structured grid. A reservoir simulator will receive the structured grid and generate a set of simulation results which are displayed on a 3D Viewer for observation by a workstation operator.
Owner:SCHLUMBERGER TECH CORP

Methods and apparatus for delivering 3D graphics in a networked environment

A system and method for seamlessly combining client-only rendering techniques with server-only rendering techniques. The approach uses a composite stream containing three distinct streams. Two of the streams are synchronized and transmit camera definition, video of server-rendered objects, and a time dependent depth map for the server-rendered object. The third stream is available to send geometry from the server to the client, for local rendering if appropriate. The invention can satisfy a number of viewing applications. For example, initially the most relevant geometry can stream to the client for high quality local rendering while the server delivers renderings of less relevant geometry at lower resolutions. After the most relevant geometry has been delivered to the client, the less important geometry can be optionally streamed to the client to increase the fidelity of the entire scene. In the limit, all of the geometry is transferred to the client and the situation corresponds to client-only rendering system where local graphics hardware is used to improve fidelity and reduce bandwidth. Alternatively, if a client does not have local three-dimensional graphics capability then the server can transmit only the video of the server-rendered object and drop the other two streams. In either case, the approach also permits for a progressive improvement in the server-rendered image whenever the scene becomes static. Bandwidth that was previously used to represent changing images is allocated to improving the fidelity of the server-rendered image whenever the scene becomes static.
Owner:LENOVO (SINGAPORE) PTE LTD

Generating, recording, simulating, displaying and sharing user related real world activities, actions, events, participations, transactions, status, experience, expressions, scenes, sharing, interactions with entities and associated plurality types of data in virtual world

Systems and methods for virtual world simulations of the real-world or emulate real-life or real-life activities in virtual world or real life simulator or generating a virtual world based on real environment: host, at a server, a virtual world geography or environment that correspondences the real world geography or environment as a result, as the user continuously moves about or navigates in a range of coordinates in the real world, the user also continuously moves about in a range of coordinates in the real world map or virtual world; generate and access, by the server, a first avatar or representation, that is associated with a first user or entity in the virtual world; monitor, track and store, by the server, plurality types of data associated with user's real life or real life activities, actions, transactions, participated or participating events, current or past locations, checked-in places, participations, expressions, reactions, relations, connections, status, behaviours, sharing, communications, collaborations, interactions with various types of entities in the real world; receive, by the server, first data associated with a mobile device of the first user related to the first activity from the first geo-location co-ordinates or place; determine, by the server, one or more real world activities of the first user based on the first data; generate, record, simulate and update, by the server, virtual world based on said stored data, wherein updating a first avatar, that is associated with the first user or entity, in the virtual world; causing, by the server, a first avatar associated with the first user or entity, to engage in one or more virtual activities in the virtual world, that are at least one of the same as or sufficiently similar to or substantially similar to the determined one or more real world activities, by generating, recording, simulating, updating and displaying, by a simulation engine, simulation or a graphic user interface that presents a user a simulation of said real-life activities; and display in the virtual world, by the server, said real world activity or interacted entity or location or place or GPS co-ordinates related or associated or one or more types of user generated or provided or shared or identified contextual one or more types of contents, media, data and metadata from one or more sources including server, providers, contacts of user and users of network and external sources, databases, servers, networks, devices, websites and applications, wherein virtual world geography correspondences the real world geography. In an embodiment receiving from a user, a privacy settings, instructing to limit viewing of or sharing of said generated simulation of user's real world life or user's real world life activities to selected one or more contacts, followers, all or one or more criteria or filters specific users of network or make it as private.
Owner:RATHOD YOH

3D imaging system

The present invention provides a system (method and apparatus) for creating photorealistic 3D models of environments and/or objects from a plurality of stereo images obtained from a mobile stereo camera and optional monocular cameras. The cameras may be handheld, mounted on a mobile platform, manipulator or a positioning device. The system automatically detects and tracks features in image sequences and self-references the stereo camera in 6 degrees of freedom by matching the features to a database to track the camera motion, while building the database simultaneously. A motion estimate may be also provided from external sensors and fused with the motion computed from the images. Individual stereo pairs are processed to compute dense 3D data representing the scene and are transformed, using the estimated camera motion, into a common reference and fused together. The resulting 3D data is represented as point clouds, surfaces, or volumes. The present invention also provides a system (method and apparatus) for enhancing 3D models of environments or objects by registering information from additional sensors to improve model fidelity or to augment it with supplementary information by using a light pattern projector. The present invention also provides a system (method and apparatus) for generating photo-realistic 3D models of underground environments such as tunnels, mines, voids and caves, including automatic registration of the 3D models with pre-existing underground maps.
Owner:MACDONALD DETTWILER & ASSOC INC
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