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Class 345/424 - Voxel


Subclass of Class 345 - Computer graphics processing and selective visual display systems
Definition: Subject matter wherein a volume element represents a value
No. of patents: 574
Last issue date: 03/09/2010


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NumberTitleIssue Date
7675517Systems 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
7589721Method 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
7576741Method, 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
7576740Method 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
7554541Widgets 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
7532214Automated 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
7528833Three-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
7511711Method 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
7505037Direct 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
7502025Image processing method and program for visualization of tubular tissue
A virtual ray makes one revolution around an imaginary path with an umbrella-like elevation angle θ kept constant with respect to the imaginary path to thereby generate a projected image. When the virtual ray is radiated obliquely, a shaded portion of an inner wall...
03/10/2009
7502026System and method for analyzing and imaging three-dimensional volume data sets
A system and method is provided for analyzing and imaging three-dimensional volume data sets. In one embodiment of the invention, a ribbon section is produced which may include a plurality of planes projected from a polyline. The polyline may include one or more lin...
03/10/2009
7471291Apparatus and method for real-time volume processing and universal three-dimensional rendering
An apparatus and method for real-time volume processing and universal three-dimensional rendering. The apparatus includes a plurality of three-dimensional (3D) memory units; at least one pixel bus for providing global horizontal communication; a plurality of renderi...
12/30/2008
7446766Multidimensional evidence grids and system and methods for applying same
A method of generating an evidence grid representing an environment comprises the steps of collecting a set of stereo images at multiple locations within the environment using stereo sensors, and processing the set of stereo images to determine occupancy and distanc...
11/04/2008
7443394Method and apparatus for rendering of complex translucent objects using multiple volumetric grids
Rendering methods include receiving a 3D object including adjacent first and second objects, determining surface illumination for points on the first and second objects, associating first and second 3D grids with the first and second objects, mapping points of the f...
10/28/2008
7444013Method and apparatus for recovering depth using multi-plane stereo and spatial propagation
An image processing system recovers 3-D depth information for pixels of a base image representing a view of a scene. The system detects a plurality of pixels in a base image that represents a first view of a scene. The system the determines 3-D depth of the pluralit...
10/28/2008
7440819Animation system for a robot comprising a set of movable parts
The object of the invention is to make the movable parts of a robot reproduce the movement of the movable parts of an animated object, via the transmission of movement parameters to the robot in a primary signal PS. The primary signal PS comprises sets of parameters...
10/21/2008
7436404Method and apparatus for rendering of translucent objects using volumetric grids
A method for rendering an object includes determining illumination values for surface points on the object, associating a grid including vertices and voxels with the object, determining illumination values associated with vertices from illumination values for surfac...
10/14/2008
7430323Method and apparatus for 4-dimensional image warping
A method of atlas mapping and an apparatus for image mapping are provided. The method includes generating a four dimensional template, linearly transforming the four dimensional representation of a subject to the four dimensional template, generating attribute vecto...
09/30/2008
7423640Method and system for panoramic display of medical images
A method for displaying a medical image comprises selecting a point in a medical image, creating a panoramic digital image by propagating a plurality of rays from said selected point, wherein said panoramic digital image comprises a plurality of pixels, each pixel b...
09/09/2008
7420555Method and apparatus for transforming point cloud data to volumetric data
A method and apparatus are provided for transforming an irregular, unorganized cloud of data points (100) into a volumetric data or “voxel” set (120). Point cloud (100) is represented in a 3D Cartesian coordinate system having an x-axis, a y...
09/02/2008
7417636Method and apparatus for automatic setting of rendering parameter for virtual endoscopy
A method for automatically setting a rendering parameter for a virtual endoscope for rendering images for virtual endoscopy, comprises deriving a data set corresponding to an inside view of a viewing frustum of the endoscope; calculating a histogram from the data se...
08/26/2008
7412363Volume body renderer
Irregular volumes within one or more three-dimensional volume datasets are identified and extracted in response to criteria. The processing involves automatically finding a seed voxel or seed cell that meets the criteria and thus belongs to an irregular volume of in...
08/12/2008
7405734Method and system for presenting three-dimensional computer graphics images using multiple graphics processing units
The present invention provides a method and system for presenting three-dimensional computer graphics images using multiple graphics processing units. The dimensions of the scene to be rendered are bounded by a rectangular volume decomposed into rectangular subvolum...
07/29/2008
7400331Apparatus and methods for texture mapping
The invention provides texture mapping techniques that facilitate interactive painting of a three-dimensional virtual surface by a user in object space, without requiring global parameterization. The texture mapping techniques feature rendering texture for a given v...
07/15/2008
7397480System and method for applying accurate three-dimensional volume textures to arbitrary triangulated surfaces
Systems and methods for displaying volume data on an arbitrary three-dimensional polygonal surface are disclosed. For each polygon in the polygonal surface, a two-dimensional texture tile is created and these texture tiles are combined to form texture atlases. Each ...
07/08/2008
7397475Interactive atlas extracted from volume data
A computer-implemented method for building an atlas includes providing a volume data for a plurality of bones, segmenting, individually, the plurality of bones from the volume data, storing locations of a plurality of voxels for each of the plurality of bones, where...
07/08/2008
7388584Method and program for determining insides and outsides of boundaries
A method for determining insides and outsides of boundaries includes an external data input step of inputting external data constituted by boundary data of objects, a cell division step of dividing the external data into rectangular parallelepiped cells having bound...
06/17/2008
7379062Method for determining a path along a biological object with a lumen
A path between specified start and end voxels along a biological object with a lumen, such as a vessel, within a patient image three-dimensional volume data set comprising an array of voxels of varying value is identified using an algorithm that works outwards from ...
05/27/2008
7372462Three-dimensional geometry processing system and method for CAD apparatus restricted in surface representations to import solid data
A three-dimensional geometry processing system and method for converting boundary representations solid data in a first format into output solid data in a second format which includes a surface conversion and division mechanism configured to convert surface informat...
05/13/2008
7372459Method for storing layers' information of a layers-made object
A method for storing and displaying a layers' information of a layer-made object, comprising: (a) forming a layer-image of each layer of said object layers, wherein said layer image is a real perpendicular view image of said layer; (b) aligning each of said layer-im...
05/13/2008
7369691Processor for analyzing tubular structure such as blood vessels
Using medical three-dimensional image data, at least one of a volume-rendering image, a flat reformatted image on an arbitrary section, a curved reformatted image, and an MIP (maximum value projection) image is prepared as a reference image. Vessel center lines are ...
05/06/2008
7370134System and method for memory hub-based expansion bus
A system memory includes a memory hub controller, a memory module accessible by the memory hub controller, and an expansion module having a processor circuit coupled to the memory module and also having access to the memory module. The memory hub controller is coupl...
05/06/2008
7366334Method of extraction of region of interest, image processing apparatus, and computer product
Assuming that there are three continuous frames, i.e, cross sectional images of an organism, a dummy region of interest (ROI) is specified manually in the first frame, a temporary ROI is set in the second frame at the same position as that of the dummy ROI in the fi...
04/29/2008
7365745Method of rendering a surface from a solid graphical image
A method for transforming solid, three-dimensional image data into three-dimensional surface data first smoothes the surface of the solid image by removing extraneous voxels both attached to main surface of the solid image as well as extraneous voxels about the main...
04/29/2008
7365875Image processing apparatus, image processing method, program, and recording medium
It enables a user to confirm an already designated area without changing layers. Image data of plural layers is generated on a same image, and an image area being a target of editing is designated on the image data of each layer. Then, if the image area of one layer...
04/29/2008
7366278DRR generation using a non-linear attenuation model
A method and system are presented for generating a DRR of an anatomical region so that the visibility within the DRR of one or more skeletal reference structures is enhanced. 3D scan data, which have been obtained from a 3D scan of the object conducted at a 3D scan ...
04/29/2008
7366920System and method for selective memory module power management
A memory module includes a memory hub that monitors utilization of the memory module and directs devices of the memory module to a reduced power state when the module is not being used at a desired level. System utilization of the memory module is monitored by track...
04/29/2008
7362329Occlusion culling for object-order volume rendering
Computerized systems and methods provide occlusion culling for efficiently rendering a three dimensional image. The systems and methods calculate a set of occluder shields in a voxel dataset using a transparency value associated with each voxel of the dataset. Next,...
04/22/2008
7362330Adaptive span computation when ray casting
A processor uses start point fractional values during view screen segment computations that start a view screen segment's computations a particular distance away from a down point. This prevents an excessive sampling density during image generation without wasting p...
04/22/2008
7363198Long elements method for simulation of deformable objects
Long Elements Method (LEM) for real time physically based dynamic simulation of deformable objects. The LEM is based on a new meshing strategy using long elements whose forms can be straight or arbitrary. The LEM implements a static solution for elastic global defor...
04/22/2008
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