Matches 251 - 300 out of 369 < 1 2 3 4 5 6 7 8 >
Match Document Document Title
6169817 System and method for 4D reconstruction and visualization  
From raw image data obtained through magnetic resonance imaging or the like, an object is reconstructed and visualized in four dimensions (both space and time) by first dividing the first image in...
6166742 Wavelet-assisted volume ray casting  
This disclosure describes the use in telecommunications of a data processing technique for accelerating the calculation of data points in volume image rendering using volume ray casting, to create...
6144385 Step-driven character animation derived from animation data without footstep information  
A character animation system executing on a computer. The system provides a simple, efficient and powerful user interface that allows the user to specify complex animations of multi-legged...
6144383 Volumetric data organization method that allows for cache efficient rendering speedups and efficient graphics hardware design  
A volumetric data organization method for volume rendering that is both cache efficient and efficient for hardware graphics design and utilization. A volume data set is divided up into a number of...
6144384 Voxel data processing using attributes thereof  
A device for processing a three-dimensional image is disclosed. A cursor of a drawing tool is moved by using a plane pointing unit 30 and an overall depth pointing unit 31. A three-dimensional cell...
6141015 Method and apparatus for determining collision between virtual objects in a virtual space  
A method of determining collision occurring in a virtual space generated by a system using a computer includes the steps of preparing, for drawing data approximating a virtual object in the virtual...
6130671 Volume rendering lighting using dot product methodology  
Volume rendering lighting using dot product methodology is disclosed. In one embodiment of the invention, a computer includes a processor, a computer-readable medium and a computer program. The...
6115048 Fast method of creating 3D surfaces by `stretching cubes`  
A system for displaying surfaces of volumetric data determines surface cubes by a simple method without interpolation. A central voxel is selected. The central voxel is tested against a threshold....
6111974 Apparatus and method for detecting sheet objects in computed tomography data  
A method and apparatus for detecting objects in computed tomography (CT) data, including sheet-shaped objects such as sheet explosives can be detected by analyzing a neighborhood of voxels...
6094203 Architecture for a graphics processing unit using main memory  
A CPU and a CPU cache memory unit is coupled to a system memory bus. A graphics processor with a graphics cache memory unit is also coupled to the system memory bus as a peer. The graphics...
6084593 Surface net smoothing for surface representation from binary sampled data  
A system for generating a surface representation from binary sampled data cludes means for iteratively smoothing the surface representation, while constraining the surface to conform to details in...
6084979 Method for creating virtual reality  
A method of virtualizing reality, i.e., a method of creating virtual reality from images of a real event, is comprised of the steps of capturing a plurality of images of each time instant of a real...
6075871 Apparatus and method for eroding objects in computed tomography data  
A method and apparatus for detecting objects in computed tomography (CT) data, including sheet-shaped objects such as sheet explosives, analyze a neighborhood of voxels surrounding a test voxel....
6072497 Volumetric pre-clipping method that guarantees minimal number of sample points through a volume  
A volumetric pre-clipping method that guarantees only a minimal number of sample points along rays that pass through a volume data set will need to be processed by a volume rendering system....
6069633 Sprite engine  
A sprite engine or compositor that is well-adapted to a variety ofadaptable to a host platforms and that minimizes the amount of drawing that occurs on a refresh of a framebuffer display area. The...
6069634 System for rapidly deforming a graphical object  
A voxel-based system for rapidly deforming volumetric objects performs simple deformation calculations for each element of the graphical object to be deformed such that when the object is...
6067366 Apparatus and method for detecting objects in computed tomography data using erosion and dilation of objects  
A method and apparatus for detecting objects in computed tomography (CT) data are disclosed. Erosion of the data can be performed by identifying a neighborhood of voxels surrounding a voxel of...
6064391 Method for displaying region extracting processing in an image processing system  
To efficiently, 3-dimensionally, perspectively project and display the extracting processing procedure of a predetermined region on a 3-dimensional image, the extracting process is executed while...
6054992 cutting, jointing and tearing volumetric objects  
A linked volumetric representation for graphical objects is presented together with techniques for physically-plausible modeling of object cutting, joining and tearing. In one embodiment, each...
6040835 System for depicting surfaces using volumetric distance maps  
A volumetric data representation for graphical objects encodes the distance of data elements to the nearest object surface, with means being provided for estimating the direction and magnitude of...
6029168 Decentralized file mapping in a striped network file system in a distributed computing environment  
The invention discloses apparatus and process in which data files are distributed across a large scale data processing system to enable balance of work loads and storage loads at a plurality of...
6026171 Apparatus and method for detection of liquids in computed tomography data  
A method and apparatus for detecting objects in computed tomography (CT) data are shown. Specifically, the system can identify objects that contain liquids, if desired. A subregion that encloses an...
6014143 Ray transform method for a fast perspective view volume rendering  
A ray transform method for performing 3D spacial volume transformation for perspective view rendering of a volume data set on a 2D graphics display. A backward mapping approach is used whereby each...
6008813 Real-time PC based volume rendering system  
Apparatus is provided to enable real-time volume rendering on a personal computer or a desktop computer in which a technique involving blocking of voxel data organizes the data so that all voxels...
5999187 Fly-through computer aided design method and apparatus  
A fly-through, three-dimensional computer aided design system is provided. Computational requirements are bounded, at least in part by defining a bounded volume or world defining the volume which...
5986662 Advanced diagnostic viewer employing automated protocol selection for volume-rendered imaging  
A computerized system and method for viewing a set of voxel data on a display device attached to a computer is disclosed. In one embodiment of the invention, the computerized system has a number of...
5963211 Method and apparatus for directly generating three-dimensional images from voxel data with dividing image generating processes and utilizing parallel processes  
A high-speed 3D image generating apparatus includes a 3D data measuring device, a voxel data converter to convert the measured 3D data into volume data, a volume data storage to store therein the...
5963212 Parallel computing system for modeling and data processing  
A parallel computing system useful for volume visualization, numeric, symbol, and other computing applications. The parallel computing system includes a memory storage system indexed to provide a...
5937094 Compression and decompression of a multidimensional data array by use of simulated particles arranged to an equation of motion involving repulsion, velocity resistance, and a potential gradient  
A method for compressing and decompressing multidimensional data based on approximating the data space by a smoothed particle cluster representation. The smoothed particle cluster representation is...
5900880 3-D surfaces generated from a list of cubic elements  
A system for display of interfaces within a block of raw data values comprises a model building portion groups data points into a cubes, receives a threshold and identifies cubes which a vertex...
5847711 Apparatus and method for parallel and perspective real-time volume visualization  
An apparatus and method for parallel and perspective real-time volume visualization. The method employs ray-slice-sweeping and includes the steps of selecting viewing and processing parameters;...
5841892 System for automated analysis of 3D fiber orientation in short fiber composites  
An apparatus and method for determining the Fiber Orientation Distribution (FOD) in an injection molded polymer is described. The transparent sample (12) is comprised of a matrix material,...
5831623 Volume rendering apparatus and method  
Volume rendering apparatus including a voxel memory, a parameter provider, an address generator, a mapping unit, an image memory and a blender. The voxel memory stores original volume data. A...
5825364 System and method for constructing a three dimensional model from two dimensional images using poissan probability  
A system that obtains thin slices of an object for which a three dimensional model is to be constructed. Each slice is photographed and the photographic image data input to a computer system and...
5821942 Ray tracing through an ordered array  
A system for displaying sets of surface cubes with gradient vertex vectors first employs a pointer table constructed to order the surface cubes so as to generally cause a row by row and layer by...
5807448 Solid object generation  
Shaping elements are arranged and fixed according to an attribute data of voxels to produce a shaped article corresponding to the attribute data. A conversion unit 52 produces a shaping element...
5802525 Two-dimensional affine-invariant hashing defined over any two-dimensional convex domain and producing uniformly-distributed hash keys  
A uniform distribution of affine invariants is produced for a plurality of one or more two-dimensional objects. Each of the two-dimensional objects is defined by a set of object points selected...
5801709 3-dimensional data shaping apparatus  
A three-dimensional data shaping apparatus defines a working region, as a region of specific size and shape within a reference three-dimensional space, with a corresponding display picture being...
5793375 Image processing apparatus for forming a surface display image  
An image processing apparatus for forming a high-quality surface display image at high speed is provided. From raw data input by a medical image diagnosis apparatus, gray-level volume data and...
5781194 Real-time projection of voxel-based object  
Fast real-time rendering of a voxel-based 3-D object is achieved by constructing a surface voxel chain and using incremental vectors in describing positions of the chain elements. The rotations of...
5756354 Animating three dimensional images by selectively processing intermediate animation frames  
A method and system for animating a 3-dimensional graphics model composed of geometrical elements which is viewed by an observer whose line of sight effects relative movement with respect to the...
RE35798 Three-dimensional image processing apparatus  
A three-dimensional image processing apparatus includes a first three-dimensional memory for storing first voxel data representing a three-dimensional CT image, a level detector for comparing the...
5751928 Parallel computing system for volumetric modeling, data processing and visualization volumetric  
A parallel computing system producing, storing and processing voxel data elements in parallel within a three-dimensional memory storage array, and producing and buffering pixel data elements in...
5742293 Data visualizer utilizing exterior selected and depth sorted polyhedron faces  
To provide high-speed volume rendering without computing the points at which a viewing ray intersects with the boundaries of a volume data area. Visualizing a volume entails: selecting the exterior...
5734384 Cross-referenced sectioning and reprojection of diagnostic image volumes  
A CT scanner non-invasively examines a volumetric region and generates voxel values. A user adjustable 3D axis system defines mutually orthogonal sections and volume reprojections thus defining a...
5724493 Method and apparatus for extracting 3D information of feature points  
The positions where back-projection lines from a plurality of images pass through a predetermined voxel slice of a 3D space are calculated. Letting a predetermined one of the plurality of images be...
5671157 Method and system for displaying three dimensional images  
A system and a method for displaying a three dimensional image and also a method for displaying a three dimensional image by selecting a ROI on at least two selected reference images from the input...
5644689 Arbitrary viewpoint three-dimensional imaging method using compressed voxel data constructed by a directed search of voxel data representing an image of an object and an arbitrary viewpoint  
Original image coordinate data representing boundary positions of an object detected through the search of the object along predetermined multiple directions is produced in advance. A range image...
5642293 Method and apparatus for determining surface profile and/or surface strain  
A photogrammetry target (cube or other shape of known dimension with reference points in known relation to each other) is placed on or in close proximity to a surface for which surface profile...
5630034 Three-dimensional image producing method and apparatus  
A three-dimensional image producing method of determining, as display candidates, voxel data having a value exceeding a display threshold set for density, and voxel data of a specified...
Matches 251 - 300 out of 369 < 1 2 3 4 5 6 7 8 >