FreshPatents.com Logo
Enter keywords:  

Track companies' patents here: Public Companies RSS Feeds | RSS Feed Home Page
Popular terms

[SEARCH]

Voxel topics
Holographic
Coordinates
Tomography
Computed Tomography
Image Processing
Anisotropy
Magnetic Resonance Imaging
Aspect Ratio
Ultrasonic
High Speed
Digital Micromirror Device
Radiograph
Interpolation
Attenuation
Intraluminal

Follow us on Twitter
twitter icon@FreshPatents

Web & Computing
Cloud Computing
Ecommerce
Search patents
Smartphone patents
Social Media patents
Video patents
Website patents
Web Server
Android patents
Copyright patents
Database patents
Programming patents
Wearable Computing
Webcam patents

Web Companies
Apple patents
Google patents
Adobe patents
Ebay patents
Oracle patents
Yahoo patents

[SEARCH]

Voxel patents



      
           
This page is updated frequently with new Voxel-related patent applications. Subscribe to the Voxel RSS feed to automatically get the update: related Voxel RSS feeds. RSS updates for this page: Voxel RSS RSS


Systems and methods for ultrasound image rendering

Computed tomography method, computer software, computing device and computed tomography system for determining a…

X-ray dose estimation technique

Date/App# patent app List of recent Voxel-related patents
07/10/14
20140193789
 Cutting simulation device and cutting simulation program patent thumbnailCutting simulation device and cutting simulation program
A pc (1) comprises a tomographic image information acquisition section (6), a memory (9), a volume rendering calculator (13), a display unit (2), a mouse (4), and a voxel label setting section (18). The tomographic image information acquisition section (6) acquires tomographic image information.
07/03/14
20140187948
 Systems and methods for ultrasound image rendering patent thumbnailSystems and methods for ultrasound image rendering
Systems and methods for ultrasound image rendering are provided. One system includes a user interface having a display configured to display ultrasound images for a volume data set and a content detection module configured to detect an object within the volume data set.
07/03/14
20140185897
 Computed tomography method, computer software, computing device and computed tomography system for determining a volumetric representation of a sample patent thumbnailComputed tomography method, computer software, computing device and computed tomography system for determining a volumetric representation of a sample
A method of using computed tomography for determining a volumetric representation of a sample, involving a first reconstruction for reconstructing first reconstructed volume data of the sample from first x-ray projection data of the sample taken by an x-ray system, a second reconstruction for reconstructing second reconstructed volume data of the sample from second x-ray projection data of the sample taken by an x-ray system, characterized by calculating first individual confidence measures for single voxels of the first reconstructed volume data, calculating second individual confidence measures for single voxels of the second reconstructed volume data, and calculating, in a subsequent step, at least one resulting set of individual values for each voxel based on the first individual confidence measures and the second individual confidence measures.. .
07/03/14
20140185751
 X-ray dose estimation technique patent thumbnailX-ray dose estimation technique
Embodiments of the disclosure relate to projection-based volumetric dose estimation for x-ray systems, such as x-ray imaging systems. For example, in one embodiment, an x-ray system is capable of estimating an x-ray dose based on an energy interaction of the x-rays with respective portions of an object.
06/26/14
20140180146
 System and method for quantification and display of collateral circulation in organs patent thumbnailSystem and method for quantification and display of collateral circulation in organs
A system and a process for representing collateral circulation in voxels of an organ. Arterial tissue delay is estimated from perfusion data by evaluating, according to a bayesian method, a posterior marginal probability distribution for the arterial tissue delay.
06/26/14
20140176545
 System, method, and computer program product implementing an algorithm for performing thin voxelization of a three-dimensional model patent thumbnailSystem, method, and computer program product implementing an algorithm for performing thin voxelization of a three-dimensional model
A system, method, and computer program product for implementing an algorithm for performing thin voxelization is disclosed. The thin voxelization algorithm receives a surface, maps the surface onto a plurality of volumetric picture elements (voxels), and generates a value for each voxel in the plurality of voxels that intersects with the surface.
06/19/14
20140169648
 Integration of intra-oral imagery and volumetric imagery patent thumbnailIntegration of intra-oral imagery and volumetric imagery
Shape data of a patient's crown and volumetric imagery of the patient's tooth are received. A determination is made of elements that represent one or more crowns in the shape data.
06/19/14
20140167753
 Diffusion spectrum imaging systems and methods patent thumbnailDiffusion spectrum imaging systems and methods
Systems and methods for generating a magnetic resonance (mr) image of a tissue are provided. A method includes acquiring mr raw data.
06/12/14
20140161340
 Iterative reconstruction patent thumbnailIterative reconstruction
An improved iterative reconstruction method to reconstruct a first image includes generating an imaging beam, receiving said imaging beam on a detector array, generating projection data based on said imaging beams received by said detector array, providing said projection data to an image reconstructor, enlarging one of a plurality of voxels and a plurality of detectors of the provided projection data, reconstructing portions of the first image with the plurality of enlarged voxels or detectors, and iteratively reconstructing the portions of the first image to create a reconstructed image.. .
06/05/14
20140152971
 Method and apparatus for intensity calibration of multi-beam lidar sensors patent thumbnailMethod and apparatus for intensity calibration of multi-beam lidar sensors
A method of multi-beam lidar intensity measurement calibration including determining, by a positioning device, position information of a moving platform within a global reference frame, collecting a plurality of data points, each data point including the position information and intensity information from a plurality of beams, segmenting the plurality of data points into a plurality of voxels, based on the position information associated with each data point, finding a subset of voxels in the plurality of voxels that include a point corresponding to a certain beam in the plurality of beams and an intensity value in a predetermined neighborhood of a certain intensity value, estimating a probability density based on the subset of voxels, and generating a calibration map that maps the certain intensity value of the certain beam to a calibrated intensity value for the certain beam, based on the probability density and a prior density.. .
06/05/14
20140152661
Medical imaging apparatus and method of constructing medical images
Apparatus and method of medical diagnostic imaging. The apparatus includes: an image unit for constructing volume image data by capturing images from a multiplicity of tomographic images of a sampling specimen and for constructing internal three dimensional images of the diagnosing object of the sampling specimen as seen from a viewing point; a display for displaying the three-dimensional images; an input unit for entering parameters for setting up a precutting plane at an inter-voxel image data boundary between voxel image data of the volume image data closer to the viewing point than the diagnosing object and voxel image data associated with the diagnosing object; and a control unit for controlling the structure of the three-dimensional images constructed by the image unit based on the precutting plane set up via the input unit, wherein the control unit extracts a boundary based on one of the parameters inputted to the input unit..
05/29/14
20140146937
Method for generating a 3d representation of an object
There is described a method for generating a 3d representation of an object, the method comprising retrieving a 3d structure representative of the object and comprising a plurality of voxels each having a respective position therein, each one of the voxels being shaped to mimic a shape of at least a portion of a potential internal feature for the respective position; receiving a densitometry measurement comprising densitometry data of the object; assigning a density value to each one of the voxels using the received densitometry data, thereby generating a 3d model of the object; and outputting the 3d model.. .
05/29/14
20140146048
Standardized geometric and physiologic space for visual and quantitative evaluation of tumor mri characteristics
A system and method for displaying mri parameters measured from a tissue sample such a tumor. A computer system receives mri data and determines a number of parameters including, a normalized cerebral blood volume (ncbv), a contrast transfer rate constant (ktrans) and apparent diffusion coefficient (adc) calculated from bo and b1000 mri images for data points in the mri data.
05/29/14
20140146047
System and method for generating an outer layer representation of an object
A system and method for generating a representation of an outer layer of a three-dimensional object is disclosed. The object may be represented by a data structure that defines a plurality of triangles that collectively represent the object.
05/29/14
20140145522
Electromagnetic digital materials
Electromagnetic digital materials are made up of a set of voxels, some of which are made from electromagnetically active materials. Each voxel is adapted to be assembled into a structure according to a regular physical geometry and an electromagnetic geometry, and a majority of the voxels in the set are reversibly connectable to other voxels.
05/22/14
20140138554
Projection method of 3d ray tracing
The present invention provides a projection method of 3d ray tracing, so as to construct a geometric factor required for the reconstruction of a medical image in the imaging field. The present invention mainly projects a radiation field and a voxel detected by each detector on two 2d planes, then calculates the geometric ratio of a rectangular unit, corresponding to each voxel on the two 2d planes, to the radiation field, respectively, and multiplies the geometric ratios to obtain a sub-geometric factor with respect to the voxel.
05/15/14
20140133729
Image processing for spectral ct
A method includes estimating structure models for a voxel(s) of a spectral image based on a noise model, fitting structure models to a 3d neighborhood about the voxel(s), selecting one of the structure models for the voxel(s) based on the fittings and predetermined model selection criteria, and de-noising the voxel(s) based on the selected structure model, producing a set of de-noised spectral images. Another method includes generating a virtual contrast enhanced intermediate image for each energy image of a set of spectral images corresponding to different energy ranges based on de-noised spectral images, decomposed de-noised spectral images, an iodine map, and a contrast enhancement factor; and generating final virtual contrast enhanced images by incorporating a simulated partial volume effect with the intermediate virtual contrast enhanced images.
05/15/14
20140132605
System, apparatus, and method for image processing and medical image diagnosis apparatus
An image processing system according to an aspect includes a receiving unit, an estimating unit, a rendering processing unit, and a display controlling unit. The receiving unit receives an operation to apply a virtual force to a subject shown in a stereoscopic image.
05/08/14
20140126798
Systems with workstations and circuits for generating images of global injury
Physician interactive workstations with global voxel distribution visualization may also include one or more of a 3-d color scale image of a population of voxel in target regions, organs or systems. The workstation may be configured to evaluate intensity or other measures of voxels of patient images associated with tissue for early detection of a global injury..
05/08/14
20140126793
Systems and methods for pet penalized-liklihood image reconstruction with spatially varying smoothing parameters
A computer-implemented method for penalized-likelihood reconstruction of a positron emission tomography (pet) image includes generating a regularization function in which a smoothing parameter is modulated by one or more data-independent spatially variable modulation factors to compensate for sensitivity variations in a pet voxel dataset, and reconstructing the pet image from the pet emission dataset using the regularization function.. .
05/08/14
20140125338
Anisotropic diffusion phantom for calibration of diffusion tensor imaging pulse sequences used in mri
The subject matter of the invention concerns the anisotropic diffusion phantom for the calibration of any diffusion mr-dti imaging sequence and a method for the calibration of all the mri scanners by using anisotropic diffusion models based on the “b” matrix, which is a quantity specific for every magnetic resonance (mr) imaging sequence and the mri scanner used. It has application in the study of solids, amorphous materials, liquids and biological tissues.
05/01/14
20140119631
Template matching method for image-based detection and tracking of irregular shaped targets
A method of generating a template image includes: receiving an input from a user representing identifications of an object in different respective slices of a volumetric image; using the input to determine a volume-of-interest (voi) that includes voxels in a subset of the volumetric image; and determining the template image using at least some of the voxels in the voi, wherein the act of determining the template image comprises performing a forward projection of the at least some of the voxels in the voi using a processor. An image processing method includes: obtaining a volumetric image; performing forward projection of voxels in the volumetric image from different positions onto a first plane using a processor; and summing projections on the first plane resulted from the forward projection from the different positions to create a first image slice in the first plane..
05/01/14
20140119627
Method for improved estimation of tracer uptake in physiological image volumes
A method of estimating the true uptake of a tracer in a physiological image acquired with a physiological image modality that has limited spatial resolution comprises: co-registering an anatomical image volume and the physiological image volume such that both image volumes have corresponding voxels; segmenting the anatomical image volume into a number of non-overlapping anatomical regions; combining each of the segmented anatomical regions with a function representative of the limited spatial resolution of the physiological image modality to generate a blurred anatomical region volume for each of the segmented regions; assuming the physiological image in each voxel to be a linear sum of the image intensities of the corresponding voxels in the blurred region volumes in that voxel; estimating, for each voxel, a value representative of the contribution to that voxel from each blurred region volume based on the uptake measured by the physiological image for that voxel and for nearby voxels; and using the estimated values for the voxels to estimate a true uptake of the tracer in each voxel and to thereby establish a corrected physiological image volume.. .
05/01/14
20140119611
List mode dynamic image reconstruction
A nuclear imaging apparatus (8) acquires nuclear imaging data comprising events wherein each event records at least spatial localization information and a timestamp for a nuclear decay event. An event-preserving image reconstruction module (22) reconstructs the nuclear imaging data using an event-preserving reconstruction algorithm to generate an image represented as an event-preserving reconstructed image dataset (id) comprising for each event the timestamp and at least one spatial voxel assignment.
05/01/14
20140118349
Systems and methods for presenting vehicle component information
A system and method for presenting vehicle component information includes storing voxel data in a computerized database. The voxel data represents a plurality of voxels spatially arranged to encompass a shape representing at least part of a vehicle.
04/24/14
20140112547
Systems and methods for removing a background of an image
An image such as a depth image of a scene may be received, observed, or captured by a device. A grid of voxels may then be generated based on the depth image such that the depth image may be downsampled.
04/24/14
20140111514
Medical system
A medical system comprising a selection unit configured to select at least one of layers in a three-dimensional tomographic image of a retina, and a generation unit configured to generate an opacity function indicating an opacity of each of a plurality of voxels constituting the selected layer, based on a frequency distribution of luminance values of the plurality of voxels.. .
04/17/14
20140103929
Systems and methods for susceptibility tensor imaging in the p-space
Systems and methods for susceptibility tensor imaging in the p-space are disclosed. An example method includes using an mri system to generate an mri signal of an object.
04/10/14
20140098097
Systems and methods for visualizing multiple volumetric data sets in real time
Systems and methods for visualizing multiple volumes of three-dimensional data. A graphics card is used for voxel intermixing, pixel intermixing and image intermixing, which produces a final-combined image of the three-dimensional data in real time..
04/03/14
20140092217
System for correcting rpc camera model pointing errors using 2 sets of stereo image pairs and probabilistic 3-dimensional models
A modeling engine (me) for generating or “bootstrapping” a three dimensional edge model (3dem) from two stereo pairs of images and correcting engine (ce) for correcting a camera model associated with an image are provided. The me back projects edge detected images into 3dems using camera models associated with the stereo images, updates and stereo updates voxel probabilities in the 3dems with back projections of the edge detected images, and then merges the 3dems together to create a “sparse” 3dem.
03/27/14
20140086466
Method for reconstructing ct image data with weighted backprojection, including computation unit and ct system for the method
A method, a computation unit and a ct system are disclosed for reconstructing ct image data, which includes a plurality of image voxels, by way of a weighted filtered back-projection. To weight the projection data during the filtered back-projection, a weight function is used, which weights the projection data from central beams which strike a detector row relatively close to the edge of the row relatively less, and which weights the projection data of central beams, which strike a detector row more relatively centrally, relatively more..
03/27/14
20140085304
Method and apparatus for removing distortion by lipids from magnetic resonance image
A method of removing distortion by lipids from an mr image includes obtaining an mr image including voxels, obtaining data of the voxels from the obtained mr image, estimating a lipid-related spectrum by using the obtained data, and removing the estimated lipid-related spectrum from the obtained data.. .
03/20/14
20140081612
Adaptive physics engine for rendering rigid body and or soft body physics for virtual objects in contact with voxelized fluid
A method for determining forces on a rigid body at least partially immersed in a fluid medium includes steps for (a) dividing the rigid body into a number of cells; (b) calculating buoyancy force on each rigid body cell separately, taking into account properties of the fluid medium, situation as to submersion of each cell, and position of each cell in the rigid body; and (c) integrating the separate buoyancy forces to determine the net force vector and any torque on the rigid body.. .
03/20/14
20140079306
Region extraction apparatus, method and program
A three-dimensional medical image obtainment unit that obtains a three-dimensional medical image of a chest, a bronchial structure extraction unit that extracts a bronchial structure from the three-dimensional medical image, a divided lung region obtainment unit that divides, based on the divergence of the bronchial structure, the bronchial structure into plural bronchial structures, and obtains plural divided lung regions based on the plural divided bronchial structures, a distance image generation unit that generates, based on the plural divided lung regions, a distance image based on a distance between each voxel in an entire region excluding at least one of the plural divided lung regions and each of the plural divided lung regions, and a border non-existing region extraction unit that extracts, based on the distance image generated by the distance image generation unit, a border non-existing region, which does not include any borders of the divided lung regions, are provided.. .
03/06/14
20140066999
Capture and visualization of clinical effects data in relation to a lead and/or locus of stimulation
A system and method for outputting historical stimulation information includes a processor configured to assign individual display regions, e.g., pixels or voxels, (or a larger region) a score based on those volumes of activations (voa) in which the individual display region had been included and the scores assigned to those voas, and display in a display device a map of varying graphical indicia based on the different scores assigned to the elemental display regions.. .
03/06/14
20140064587
Method for detecting damage to silicone implants and computed tomography device
A method is disclosed for detecting damage to silicone implants. In an embodiment, the method includes taking at least two computed tomography recordings at different x-ray spectra or different mono-energies of the x-ray radiation and reconstruction thereof.
03/06/14
20140062476
Mri detection of tissue macromolecular characteristics using mtc effects
A magnetic resonance imaging (mri) system and method (a) acquires k-space data for a patient roi over a predetermined band of rf frequencies using rf excitation pulses having respectively corresponding rf frequencies incrementally offset from a nuclear magnetic resonant (nmr) larmor frequency for free nuclei over a predetermined range of different offset frequencies in which target macromolecule responses are expected and to process such acquired data into spectral data for voxels in the roi; (b) analyzes the acquired spectral data to provide spectral peak width data corresponding to tissue values in the roi for macromolecules participating in magnetization transfer contrast (mtc) effects producing said spectral data; and (c) stores and/or displays data representative of tissue values of the roi which values are different for different tissues.. .
03/06/14
20140062473
Automated mri detection of tissue macromolecular t2/t2* characteristics using z-spectra
A magnetic resonance imaging (mri) system and method (a) acquires k-space data for a patient roi over a predetermined band of rf frequencies using rf excitation pulses having respectively corresponding rf frequencies incrementally offset from a nuclear magnetic resonant (nmr) larmor frequency for free nuclei thus causing chemical exchange saturation transfer (cest) effects and to process such acquired data into z-spectra data for voxels in the roi; (b) analyzes the acquired z-spectra data to provide spectral peak width data corresponding to t2/t2* tissue values in the roi for macromolecules participating in magnetization transfer contrast (mtc) effects producing said z-spectra data; and (c) stores and/or displays data representative of t2/t2* tissue values of the roi which values are different for different tissues.. .
02/20/14
20140050380
Apparatus and method for generating medical image using linear gamma ray source
Methods and apparatuses for generating a blur model of a detector, and methods and apparatus for generating a medical image are provided. A method of generating a blur model of a detector may involve: changing locations of linear gamma ray sources along at least one line and obtaining signals emitted from the linear gamma ray sources; obtaining a point spread function (psf) with respect to at least one voxel included in the at least one line; and generating a blur model of the detector from the psf..
02/20/14
20140049257
Measurement of properties of fluids using mri
A method of determining rheological properties of a fluid. The method includes: providing an open-bore tube and defining within the bore a three dimensional grid (3dg) of voxels; defining at least an inlet cross section (ics) and an outlet cross section (ocs); defining a volume of interest within the bore between the ics and the ocs; obtaining rheological properties of the fluid; applying a pressure gradient to the bore between the ics and the ocs; and nuclear magnetic resonance imaging the fluid within the volume of interest to determine various aspects of the fluid..
02/13/14
20140044330
Angiographic method for examining a vascular system
An angiographic method is provided. The method includes: identification of a relevant part in acquired angiography 4d sequences which exhibit a vascular disorder or change; determination of a centerline for the part; ascertainment of lines parallel and surrounding the centerline; specification of perpendicular cross-sections; determination of voxels; ascertainment of bolus curves as a function of time for each voxel; which intersects one of the cross-sections; determination of a time for each voxel; measurement of the true euclidean distance between voxels at the positions along the centerline and the parallel lines; division of the measured distance by the time difference; determination of second speed components, running transversely, proportional to the relative change in mass for each voxel; and calculation of the blood flow in the relevant part of the vascular system on the basis of the speed components..
02/13/14
20140044309
Human tracking system
An image such as a depth image of a scene may be received, observed, or captured by a device. A grid of voxels may then be generated based on the depth image such that the depth image may be downsampled.
02/13/14
20140043021
Simultaneous non-contrast mr angiography and intraplaque hemorrhage (snap) mr imaging
Magnetic resonance (mr) spins are inverted by applying an inversion recovery (ir) radio frequency pulse (50). Mr signals are acquired at an inversion time (ti) after the ir radio frequency pulse.
02/06/14
20140035916
Preparation and display of derived series of medical images
Certain embodiments of the invention provide a computer apparatus and corresponding computer implement method for slab rendering from a three dimensional (3d) image data set of voxel data. Slab rendering is carried out on a stack of slabs of the same thicknesses in the 3d image data set.
01/30/14
20140031967
Method and system for rapid prototyping of complex structures
A method is provided for rapid prototyping of complex structures, such as complex bone structures and internal neural and cardiovascular pathways. The method involves loading the triangles from a polygonal mesh computer model of a 3d object having one or more internal void spaces, converting the triangles to voxels, separating the voxels of the model into watertight pieces, and printing the pieces using a 3d printer such as a zprinter™.
01/30/14
20140030655
Enhanced multi-photon imaging resolution method
A method and a multi-photon photocurable composition are provided that allow for the formation of a three-dimensional microstructure having enhanced imaging resolution. The method involves providing a multi-photon photocurable composition system having an acrylic prepolymer and a multiphotohn photoinitiator system that comprises at least one distyrylbenzene dye or a benzothiazolyl fluorine derivative.
01/23/14
20140022161
Human tracking system
An image such as a depth image of a scene may be received, observed, or captured by a device. A grid of voxels may then be generated based on the depth image such that the depth image may be downsampled.
01/16/14
20140018682
Ultrasonic diagnostic apparatus and ultrasonic diagnostic image rendering method
The ultrasonic diagnostic apparatus is equipped with: a gradient calculating section that calculates gradients of the volume data voxel values; a feature calculating section that calculates the feature values of the voxels on the basis of the gradients and the direction of the ultrasonic beam and calculates a feature space on the basis of the feature values; an object-voxel determining section that determines the voxels that correspond to the object on the basis of the feature space; a voxel removing section that removes voxels that are closer to the probe than the object; and an ultrasonic image generating unit that generates ultrasonic images that correspond to the object from the volume data from which the voxels closer to the probe have been removed.. .
01/16/14
20140016850
Voxel-resolution myocardial blood flow analysis
A myocardial blood flow analysis scan includes incorporating a pharmacological kinetic model with the standard factor analysis model where each time activity curve is assumed to be a linear combination of factor curves. Pharmacological kinetics based factor analysis of dynamic structures (k-fads) model can be applied, whereby a means for estimating factor curves in the myocardium that are physiologically meaningful is provided.
01/09/14
20140010473
Systems and methods for thin object imaging
A method for imaging an object is provided. The method includes acquiring image data of the object, wherein the image data includes a plurality of original voxels each having an original ct number, identifying, using a processing device, a subset of the original voxels based on at least one of an original ct number and a location of each original voxel, applying, using the processing device, an anisotropic smoothing filter to the identified original voxels in the subset to generate a set of smoothed voxels each having a smoothed ct number, generating, using the processing device, smoothed image data by combining the original voxels and the smoothed voxels, and analyzing the smoothed image data to determine whether the object contains contraband..
01/09/14
20140010342
Systems and methods for imaging and detecting sheet-like material
A method for imaging an object is provided. The method includes acquiring image data of the object, wherein the image data includes a plurality of original voxels, and identifying, using a processing device, a first subset of voxels from the acquired image data.
01/02/14
20140005994
Windowed simulation in fluid flows
A simulation application simulates a fluid flow. The simulation application divides a fluid into coarse volumetric elements (voxels) at a first resolution, and simulates the fluid flow at the first resolution.
01/02/14
20140003701
Method and system for identification of calcification in imaged blood vessels
A computer implemented method identifying calcification in a patient image data set including blood vessels. The method includes: obtaining an image data set including voxels each having an intensity value; forming the intensity values into an intensity value group covering an intensity range; defining plural intensity thresholds across the intensity range and including its end values; for each intensity threshold, partitioning the intensity values into two sub-groups according to intensity threshold, and calculating an information criterion based on intensity threshold; generating an information criterion measure curve that plots the calculated information criteria against intensity threshold; locating a maximum in the information criterion measure curve and setting the corresponding intensity threshold as a calcification threshold; and partitioning the intensity values into two sub-groups using the calcification threshold, identifying voxels corresponding to intensity values in the sub-group above the calcification threshold as representing calcification in the patient..
12/26/13
20130343673
Method and apparatus for iterative reconstruction
A method is provided for iteratively reconstructing an image of an object. The method includes accessing measurement data associated with the image, and using a simultaneous algorithm to reconstruct the image.
12/26/13
20130343627
Suppression of reverberations and/or clutter in ultrasonic imaging systems
There is provided a method for reverberation and/or clutter suppression in ultrasonic imaging, comprising: computing similarity measures between voxels within a cine-loop or subset of the cine-loop, to assess their spatial and/or temporal self-similarity; for at least one of: (i) each voxel; (ii) each group of adjacent voxels within the cine-loop or subset of the cine-loop; and (iii) each group of voxels which are determined to be affected by reverberations and/or clutter, based on one or more criteria; computing one or more reverberation and/or clutter parameters; and for at least one of: (i) each voxel; (ii) each group of adjacent voxels within the cine-loop or subset of the cine-loop; and (iii) each group of voxels which are determined to be reverberation and/or clutter affected voxels, based on one or more criteria, applying reverberation and/or clutter suppression using the corresponding reverberation and/or clutter suppression parameters.. .
12/19/13
20130338927
Seismic anomaly detection using double-windowed statistical analysis
Method for identifying geologic features from seismic data (11) using seismic anomaly detection by a double-windowed statistical analysis. Subtle features that may be obscured using a single window on the data are made identifiable using two moving windows of user-selected size and shape: a pattern window located within a sampling window larger than the pattern window (12).
12/19/13
20130338489
Magnetic resonance imaging of ventilation and perfusion in the lung
Methods, devices, and systems are disclosed for implementing a fully quantitative non-injectable contrast proton mri technique to measure spatial ventilation-perfusion (va/q) matching and spatial distribution of ventilation and perfusion. In one aspect, a method using mri to characterize ventilation and perfusion in a lung includes acquiring an mr image of the lung having mr data in a voxel and obtaining a breathing frequency parameter, determining a water density value, a specific ventilation value, and a perfusion value in at least one voxel of the mr image based on the mr data and using the water density value to determine an air content value, and determining a ventilation-perfusion ratio value that is the product of the specific ventilation value, the air content value, the inverse of the perfusion value, and the breathing frequency..
12/19/13
20130336564
Mr segmentation using nuclear emission data in hybrid nuclear imaging/mr
When generating a magnetic resonance (mr) attenuation map (39), an mr image is segmented to identify a patient's body outline, soft tissue structures, and ambiguous structures comprising bone and/or air. To distinguish between bone and air in the ambiguous structures, a nuclear emission image (e.g., pet) of the same patient or region of interest is segmented.
12/19/13
20130335417
Space carving in 3d data acquisition
Three-dimensional scanning is improved with the use of space carving to exclude certain scan results from processing and display. Using space carving techniques, a spatial matrix is maintained to store data on volumetric regions (or voxels) known to be empty.
12/12/13
20130329972
Biomedical data analysis on heterogeneous platform
Methods and apparatus for biomedical data analysis to produce enhanced images of tubular structures are disclosed. A gaussian convolution of an input image is used to calculate a hessian matrix.
12/05/13
20130324785
Method and apparatus for planning or controlling a radiation treatment
The present invention relates to method for generating planning data or control data for a radiation treatment, comprising the following steps: acquiring segmented data of an object which contains a treatment volume and a non-treatment volume; modelling at least some or all of the volume or surface of the treatment volume as a source of light or rays exhibiting a predefined or constant initial intensity; modelling the non- treatment volume as comprising volumetric elements or voxels which each exhibit an individually assigned feature or attenuation or transparency value (tmin≦t≦tmax) for the light or rays which feature is assigned to the light or ray or which attenuation or transparency maintains or reduces the intensity of the light or ray as it passes through the respective volumetric element or voxel, wherein the feature or attenuation or transparency value is individually assigned to each volumetric element or voxel of the non-treatment volume; defining a map surface which surrounds the treatment volume or the object; calculating an accumulated intensity value for points or areas on the map surface, the accumulated intensity being the sum of the intensities of all the rays which exhibit the predefined or constant initial intensity and are emitted from the volume or surface of the treatment volume and reach a respective point on the map surface preferably by following a straight line, wherein if the ray passes through a non-treatment volume or voxel, the intensity of the respective ray is reduced or attenuated by a factor which is determined by the individual feature or attenuation or transparency value of the respective non-treatment volume or voxel; and generating an intensity distribution on the map surface using the calculated accumulated intensities.. .
12/05/13
20130322718
Method and apparatus for measurements of the brain perfusion in dynamic contrast-enhanced computed tomography images
The present invention discloses a method and apparatus for measuring aif and vof on brain perfusion ct images. The aif and vof are used to calculate hemodynamic parameters.
12/05/13
20130320975
Method and device for determining a change over time in a biomarker in a region to be examined
A method for determining a change over time in a biomarker in a region to be examined of a patient is provided. The change is determined from magnetic resonance data using a magnetic resonance measuring system with sequences and protocols for measuring the biomarkers by functional resting state connectivity by rsfmri, perfusion values, magnetic resonance spectra of voxels, or morphometry of organs.
11/28/13
20130317341
Method and system for processing mrt data of the human brain
A method, a software program and a system for processing mrt data of the human brain of a patient, wherein three-dimensional mrt data resolved in voxels of the patient's brain and the brains of a normative database of a plurality of neurologically healthy human individuals are available. The mrt data of the patient's brain are segmented for each voxel into portions of grey substance, white substance and liquor by means of a classification algorithm, wherein for comparison with corresponding data of the normative database the data are normalized before, after or synchronously into a standardized stereotactic space whereby one or more normalized tissue maps result that contain the proportions determined by the classification algorithm, and the tissue map or tissue maps of the patient's brain is or are subjected to a voxel-wise statistical comparison with the correspondingly normalized and segmented data of the normative database..
11/28/13
20130315377
Methods and systems for determining the average atomic number and mass of materials
Disclosed herein are methods and systems of scanning a target for potential threats using the energy spectra of photons scattered from the target to determine the spatial distributions of average atomic number and/or mass in the target. An exemplary method comprises: illuminating each of a plurality of voxels of the target with a photon beam; determining an incident flux upon each voxel; measuring the energy spectrum of photons scattered from the voxel; determining, using the energy spectrum, the average atomic number in the voxel; and determining the mass in the voxel using the incident flux, the average atomic number of the material in the voxel, the energy spectrum, and a scattering kernel corresponding to the voxel.
11/28/13
20130314416
Volumetric display using electrowetting mirror arrays
A volumetric display that includes a dispersion block defining a plurality of voxels that are characterized as being visibly apparent when illuminated by impinging light, a projector configured to project one or more light rays for illuminating one or more of the plurality of voxels, and a plurality of arrays of electrowetting mirrors arranged about the dispersion block, wherein each electrowetting mirror is operable to reflect a light ray from the projector toward a selected voxel. The arrays of electrowetting minors provide for a volumetric display that is readily focused..
11/14/13
20130304503
Customization of a dose distribution setting for a technical appliance for tumour therapy
The aim of the invention is to provide a planner with the opportunity to effect local improvement of an imrt treatment plan which is available to him. To this end, a method for customizing a dose distribution setting for a technical appliance in tumor therapy is proposed.
11/14/13
20130304436
Control system for extraction of hydrocarbons from underground deposits
A control system for use in extracting hydrocarbons from an underground deposit is disclosed that comprises an electromagnetic heating system and a processor. The electromagnetic heating system is configured to heat the underground deposit to facilitate fluid flow of a resource for extraction from the underground deposit.
11/14/13
20130303899
Quantitative evaluation of fractional regional ventilation using four-dimensional computed tomography
Methods and systems for determining fractional regional ventilation are disclosed. A method includes obtaining first and second lung image data indicative of a first phase and a second phase of a respiratory cycle, respectively, determining an apparent mass ratio k based on the first lung image data and the second lung image data, determining first and second spatially matched lung image data, each including n voxels, based on the first lung image data and the second lung image data, and determining at least one fractional regional ventilation value (frv value), in accordance with a first equation frv(n)=(k·ρ2_n−ρ1_n)/ρ1_n.
11/07/13
20130297574
Method and apparatus for compressing three-dimensional point cloud data
A method and apparatus for compressing three-dimensional point cloud data is disclosed. In one aspect, a method for compressing three dimensional point cloud includes steps of retrieving three-dimensional point cloud data; providing one or more grids to the three-dimensional point cloud data; assigning one binary digit to each three-dimensional grid voxel containing said point cloud data and assigning the other binary digit to each three-dimensional grid voxel that does not have said point cloud data; converting the three-dimensional grid into two-dimensional tiles; and storing information of a plurality of binary strings in said two-dimensional tiles.
11/07/13
20130294570
Truncation compensation for iterative cone-beam ct reconstruction for spect/ct systems
A multiple modality imaging system (10) includes a cone-beam computed tomography scanner (24, 30) which acquires ct projection data of a subject (22) in an examination region (18) and a nuclear imaging scanner which concurrently/subsequently acquires nuclear projection data of the subject in the examination region. A ct reconstruction processor (34) is programmed to perform the steps of: in the ct projection data, defining a field-of-view (fov) with a voxel grid in a trans-axial direction; determining the subject's maximum trans-axial extents; generating an extending fov by extending the voxel grid of the fov to at least one extended region outside the fov that encompass at least the determined maximum trans-axial extents and all attenuation in the trans-axial direction; and iteratively reconstructing the ct projection data into an attenuation map of the extended fov.


Popular terms: [SEARCH]

Voxel topics: Holographic, Coordinates, Tomography, Computed Tomography, Image Processing, Anisotropy, Magnetic Resonance Imaging, Aspect Ratio, Ultrasonic, High Speed, Digital Micromirror Device, Radiograph, Interpolation, Attenuation, Intraluminal

Follow us on Twitter
twitter icon@FreshPatents

###

This listing is a sample listing of patent applications related to Voxel for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Voxel with additional patents listed. Browse our RSS directory or Search for other possible listings.
     SHARE
  
         


FreshNews promo



0.4821

2908

2 - 1 - 71