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| Number | Title | Issue Date |
| 8081183 | Method for reconstructing three dimensional model A method for reconstructing a three dimensional (3D) model, suitable for reconstructing the 3D model of an object by using a voxel, is provided. After the voxel is cut to a plurality of sub-voxels, the sub-voxels of which a projection image is inside a silhouette im... | 12/20/2011 |
| 8063901 | Method and apparatus for efficient client-server visualization of multi-dimensional data In response to a request from a client, a server for volume rendering loads a volume dataset from a storage archive, creates a low resolution sub-sampled copy of such volume dataset and transmits it to a client. In response to subsequent requests from the client, th... | 11/22/2011 |
| 8059122 | Cartesian mesh generation technique A highly accurate and robust cubic cell mesh generator “Cubegen” capable of a trillion plus cell meshes on a single processor 4-Gigabyte main memory workstation has been developed. The cells are generated in Yee format for the Finite Difference Time Domain metho... | 11/15/2011 |
| 8049752 | Systems and methods of determining sampling rates for volume rendering A system and method of determining a sampling rate for rendering a volumetric image, the method includes determining a regional variation value representing regional data, color, and/or alpha variation. An accumulated opacity value is determined that represents opac... | 11/01/2011 |
| 8013856 | Image processing method This invention provides an image processing method for projecting a virtual ray onto volume data to create an image and making it possible to realize speeding up without performing preprocessing. A virtual ray 22 is projected from an eye O onto an object 2... | 09/06/2011 |
| RE42638 | Resample and composite engine for real-time volume rendering The present invention is a digital electronic system for rendering a volume image in real time. The system accelerators the processing of voxels through early ray termination and space leaping techniques in the projection guided ray casting of the voxels. Predictabl... | 08/23/2011 |
| 7995057 | System and method for real-time co-rendering of multiple attributes Systems and methods for enhancing the combined image of multiple attributes without comprising the image of either attribute. The combined image of the multiple attributes is enhanced for analyzing a predetermined property revealed by the attributes. The combined im... | 08/09/2011 |
| 7990379 | System and method for coronary segmentation and visualization A method of coronary vessel segmentation and visualization includes providing a digitized coronary image, placing a plurality of seed points along an estimated centerline of a coronary vessel, selecting a seed point and constructing a cyclic graph around the seed po... | 08/02/2011 |
| 7990378 | Methods and apparatus for volume rendering A method for performing a volume rendering of an image uses a computer having a processor, memory, and a display. The method includes globally segmenting image data that represents an image to thereby locate boundaries in the image, determining regional opacity func... | 08/02/2011 |
| 7961186 | Brick-based fusion renderer A method for combining at image data sets to generate a composite image. The method divides each of the data sets into a plurality of bricks along three mutually orthogonal axes. The method includes (a) building a hierarchical structure for each one of the at least ... | 06/14/2011 |
| 7961187 | Methods, systems, and computer readable media for flexible occlusion rendering The invention relates to flexible occlusion rendering, including receiving a first set of three dimensional image data including image data for a surface of interest and image data for a region occluding the surface of interest from a desired viewpoint. The purpose ... | 06/14/2011 |
| 7944443 | Sliding patch deformer Points can be manipulated through multiple operations with respect to a guide surface using only a single projection operation. A point is projected from its native coordinate system, such as an object space or world space coordinate system, into the parametric spac... | 05/17/2011 |
| 7924280 | Method and apparatus for processing of diagnostic image data A method is disclosed for processing of diagnostic image data. In one embodiment, the method includes determination of three-dimensional image information using an imaging medico-technical method, in which an examined volume is subdivided into a plurality of voxels ... | 04/12/2011 |
| 7924279 | Protocol-based volume visualization A system for visualizing a 3D volume, in particular for medical applications, includes an input 1010 for receiving a three-dimensional set of data representing voxel values of the 3D volume. The data set is stored in a storage 1030. A processor project... | 04/12/2011 |
| 7903113 | Systems and methods of image rendering from datasets A system and method for rendering an MIP image that has reduced high frequency component loss and reduced chessboard artifacts. The method includes accessing volumetric data, having random noise. Rays are shot, or cast, through the volumetric data, onto a voxel grid... | 03/08/2011 |
| 7898540 | Method and program for converting boundary data into cell inner shape data A cutting point calculation step defines the cell complex that contains the boundary data, and calculating a cutting point where the boundary data cuts an edge or vertex of the rectangular parallelepiped cell of the cell complex. A cycle formation step classifies th... | 03/01/2011 |
| 7893939 | Method and apparatus for segmenting an image in order to locate a part thereof A method is disclosed to automatically segment 3D and higher-dimensional images into two subsets without user intervention, with no topological restriction on the solution, and in such a way that the solution is an optimal in a precisely defined optimization criteri... | 02/22/2011 |
| 7893940 | Super resolution contextual close-up visualization of volumetric data The present invention relates to a method and system for processing a volumetric dataset for providing close-up visualization of a subset therefrom. A volumetric dataset is processed based on a dual access gradient quantization data structure. The data structure is ... | 02/22/2011 |
| 7864176 | Translucent object rendering methods and apparatus A computer system method includes determining a first surface illumination on an object based upon a respective irradiance, determining a first surface reflection based upon the respective irradiance, determining a second surface illumination on the object based upo... | 01/04/2011 |
| 7859530 | Subsurface rendering methods and apparatus A method for a computer system includes receiving a three-dimensional model of an object, wherein the object includes a surface region, determining an incident irradiance associated with the surface region, determining a plurality of voxels associated with the three... | 12/28/2010 |
| 7847799 | Bi-level iso-surface compression Methods, structures and systems for encoding and decoding isosurface data. An encoder process takes volume data and an isolevel as input and produces compressed isosurface data as output. The compressed isosurface data produced by an encoder process is composed of a... | 12/07/2010 |
| 7843452 | Progressive refinement for texture-based volume rendering A method for rendering a two-dimensional image comprising: (a) obtaining a first three-dimensional set of data for a relatively high quality image; (b) generating a second three-dimensional set of data for a relatively low quality image from the obtained three-dimen... | 11/30/2010 |
| 7839404 | Systems and methods of direct volume rendering A method and system of increasing the speed of a ray-casting algorithm for producing direct volume rendering images in the melt-through interaction mode. Since the viewing direction is not changed during a melt-through interaction, it is possible to reuse the sample... | 11/23/2010 |
| 7830378 | Medical image processing apparatus and medical image processing method A medical image processing apparatus of the invention comprises: a three-dimensional model estimating section that estimates a three-dimensional model of body tissues based on a two-dimensional image of an image of the body tissues inside a body cavity inputted from... | 11/09/2010 |
| 7777742 | Systems and methods of non-rigid volume registration A method and system of volume deformation, including accessing a tree structure for a set of deformation maps. The tree structure is traversed for each voxel in an original volume and each voxel is transformed according to each deformation map corresponding to a nod... | 08/17/2010 |
| 7755625 | Apparatus and method for rendering volume data The present invention relates to an apparatus and a method for rendering volume data in an ultrasound diagnostic system. A method for rendering volume data including an object space and an empty space acquired from ultrasound data, comprises the following steps: a) ... | 07/13/2010 |
| 7737972 | Systems and methods for digital volumetric laminar tomography Systems and methods are provided for implementing an analytical approach to digital volumetric laminar tomography. The volumetric data visualizations generally take the form of volumetric images which approximate the spatial distribution of an x-ray attenuation coef... | 06/15/2010 |
| 7728834 | Method and apparatus for reconstructing a three-dimensional image volume from two-dimensional projection images The invention relates to a method and an apparatus for reconstructing a three-dimensional image volume from two-dimensional projection images of a subject which have been taken from different projection directions by rotating the recording system around the subject,... | 06/01/2010 |
| 7724254 | ISO-surface tesselation of a volumetric description A multi-threaded graphics processor is configured to generate a tessellated iso-surface from a volumetric description using slices of values that are stored in render targets. The volumetric description can be a complex mathematic equation, a sum of metaballs, a pre... | 05/25/2010 |
| 7692650 | Method of and system for 3D display of multi-energy computed tomography images A method of and a system for displaying volumetric multi-energy CT images are disclosed, wherein a CT image, a Z image, and a label image from an automatic explosive detection are provided, are disclosed. The method comprises generating an index image through a nonl... | 04/06/2010 |
| 7692651 | Method and apparatus for providing efficient space leaping using a neighbor guided emptiness map in octree traversal for a fast ray casting algorithm An apparatus and method are provided for providing efficient space leaping using neighbor guided emptiness map in octree traversal for fast ray casting. The apparatus and method include providing a min-max octree structure, marching a ray through the min-max structu... | 04/06/2010 |
| 7675517 | Systems and methods of gradient assisted volume rendering A system and method for rendering an image that includes accessing image data and dividing the image data into one or more blocks. One or more corner points of the blocks are identified and rays are cast through voxel space of the image data in the direction of the ... | 03/09/2010 |
| 7589721 | Method for interactive segmentation of a structure contained in an object The invention relates to a method for the interactive segmentation of a structure contained in an object from a three-dimensional image of the object. In an expansion mode a region expansion process is carried out, the results of said process simply being completely... | 09/15/2009 |
| 7576741 | Method, computer program product, and device for processing projection images A method for improving the quality of a projection image. The method includes setting a plurality of rays that pass through voxels. Each ray corresponds to a pixel. The method further includes storing a plurality of pixel values, each associated with one of the voxe... | 08/18/2009 |
| 7576740 | Method of volume visualization The present invention relates to a method of volume visualization in which volumetric data is provided, the volumetric data having first voxels belonging to a reference surface. Second voxels of the volumetric data are determined having a user selected distance from... | 08/18/2009 |
| 7554541 | Widgets displayed and operable on a surface of a volumetric display enclosure The present invention is a system that places 2D user interface widgets in optimal positions in a 3D volumetric display where they can be easily used based on the knowledge user have about traditional 2D display systems. The widgets are placed on a shell or outer ed... | 06/30/2009 |
| 7532214 | Automated medical image visualization using volume rendering with local histograms Methods and apparatus are configured to provide data to render (medical) images using direct volume rendering by electronically analyzing a medical volume data set associated with a patient that is automatically electronically divided into a plurality of local histo... | 05/12/2009 |
| 7528833 | Three-dimensional data controller and three-dimensional data processor A three-dimensional data controller controls voxel data by distributing the voxel data to hierarchical nodes. The three-dimensional data controller stores combination patterns, each representing combinations of model statuses of lower nodes towards an upper node of ... | 05/05/2009 |
| 7511711 | Method for locating an impact on a surface and device therefor Apparatus and methods for locating an impact point on a surface of an object. The object is provided with an acoustic sensor that senses the impact from the acoustic waves that are generated when the object is subjected to the impact. The location of the impact on t... | 03/31/2009 |
| 7505037 | Direct volume rendering of 4D deformable volume images A method and system are presented for direct volume rendering of a deformable volume dataset that represent an object in motion. An original 3D image dataset of the object is acquired at an initial stage of the motion, and segmented. Deformed 3D image datasets of th... | 03/17/2009 |
