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465 results about "Volumetric data" patented technology

Volumetric data is a critical piece of information for aggregate operations. Yet economical, accurate and timely collection of such data remains elusive for most operators.

Real time markerless motion tracking using linked kinematic chains

A markerless method is described for tracking the motion of subjects in a three dimensional environment using a model based on linked kinematic chains. The invention is suitable for tracking robotic, animal or human subjects in real-time using a single computer with inexpensive video equipment, and does not require the use of markers or specialized clothing. A simple model of rigid linked segments is constructed of the subject and tracked using three dimensional volumetric data collected by a multiple camera video imaging system. A physics based method is then used to compute forces to align the model with subsequent volumetric data sets in real-time. The method is able to handle occlusion of segments and accommodates joint limits, velocity constraints, and collision constraints and provides for error recovery. The method further provides for elimination of singularities in Jacobian based calculations, which has been problematic in alternative methods.
Owner:NAT TECH & ENG SOLUTIONS OF SANDIA LLC

Methods, systems, and computer program products for shaping medical implants directly from virtual reality models

A virtual interactive environment enables a surgeon or other medical professional to manipulate implants, prostheses, or other instruments using patient-specific data from virtual reality models. The patient data includes a combination of volumetric data, surface data, and fused images from various sources (e.g., CT, MRI, x-ray, ultrasound, laser interferometry, PET, etc.). The patient data is visualized to permit a surgeon to manipulate a virtual image of the patient's anatomy, the implant, or both, until the implant is ideally positioned within the virtual model as the surgeon would position a physical implant in actual surgery. Thus, the interactive tools can simulate changes in an anatomical structure (e.g., bones or soft tissue), and their effects on the external, visual appearance of the patient. CAM software is executed to fabricate the implant, such that it is customized for the patient without having to modify the structures during surgery or to produce a better fit.
Owner:SCHENDEL STEPHEN A

Apparatus and method for fusion and in-operating-room presentation of volumetric data and 3-D angiographic data

An apparatus and method for fusing images, views and data acquired prior to a medical operation by a medical imaging device with images, views and data acquired by another medical imaging device during the operation. The acquired and fused data includes identification and classification of plaque deposited along blood vessels.
Owner:PAIEON INC

Apparatus and method for surgical planning and treatment monitoring

A system for surgical planning and therapeutic monitoring utilizes imaging data and computer-aided detection (CAD) technology to identify cancerous tumors. A pre-treatment report identifies all volumes of interest (VOIs) and provides data regarding the size and location of each VOI as well as volumetric data for use in surgical planning. The system can be used to monitor the progress of adjuvant chemotherapy or other non-surgical treatment and measures changes in tumor size and location. Post-treatment reports provide data regarding changes in tumor size and location as well as trend data to provide guidance to the physician.
Owner:FUJIFILM HEALTHCARE CORP +1

Method and apparatus for transforming polygon data to voxel data for general purpose applications

A method and apparatus are provided for transforming 3D geometric data, such as polygon data (16) formed of polygons (18), into volumetric data (14) formed of voxels (12). According to the method, 3D geometric data to be converted to voxel data are acquired, and the resolution of a final voxel grid to be produced is obtained (e.g., user-defined). Then, each geometric unit (e.g., a polygon) in the 3D geometric data is mapped (or scan converted) to an imaginary voxel grid having a higher resolution than the resolution of the final voxel grid. Next, with respect to the geometric units that are mapped to the imaginary voxels in the imaginary voxel grid dividing one final (actual) voxel into smaller sub-volumes, a weighted average of the attribute values (color, normal, intensity, etc.) is obtained. The weighted average is stored as the attribute value of the final voxel.
Owner:MCLOUD TECH USA INC

Ultrasonic medical device and associated method

A medical system includes a carrier and a multiplicity of electromechanical transducers mounted to the carrier, the transducers being disposable in effective pressure-wave-transmitting contact with a patient. Energization componentry is operatively connected to a first plurality of the transducers for supplying the same with electrical signals of at least one pre-established ultrasonic frequency to produce first pressure waves in the patient. A control unit is operatively connected to the energization componentry and includes an electronic analyzer operatively connected to a second plurality of the transducers for performing electronic 3D volumetric data acquisition and imaging (which includes determining three-dimensional shapes) of internal tissue structures of the patient by analyzing signals generated by the second plurality of the transducers in response to second pressure waves produced at the internal tissue structures in response to the first pressure waves. The control unit includes phased-array signal processing circuitry for effectuating an electronic scanning of the internal tissue structures which facilitates one-dimensional (vector), 2D (planar), and 3D (volume) data acquisition. The control unit further includes circuitry for defining multiple data gathering apertures and for coherently combining structural data from the respective apertures to increase spatial resolution. When the data gathering apertures are contained in a flexible web or carrier so that the instantaneous positions of the data gathering apertures are unknown, a self-cohering algorithm is used to determine their positions so that coherent aperture combining can be performed.
Owner:WILK ULTRASOUND OF CANADA

Ultrasonic medical device and associated method

A medical system includes a carrier and a multiplicity of electromechanical transducers mounted to the carrier, the transducers being disposable in effective pressure-wave-transmitting contact with a patient. Energization componentry is operatively connected to a first plurality of the transducers for supplying the same with electrical signals of at least one pre-established ultrasonic frequency to produce first pressure waves in the patient. A control unit is operatively connected to the energization componentry and includes an electronic analyzer operatively connected to a second plurality of the transducers for performing electronic 3D volumetric data acquisition and imaging (which includes determining three-dimensional shapes) of internal tissue structures of the patient by analyzing signals generated by the second plurality of the transducers in response to second pressure waves produced at the internal tissue structures in response to the first pressure waves. The control unit includes phased-array signal processing circuitry for effectuating an electronic scanning of the internal tissue structures which facilitates one-dimensional (vector), 2D (planar), and 3D (volume) data acquisition. The control unit further includes circuitry for defining multiple data gathering apertures and for coherently combining structural data from the respective apertures to increase spatial resolution. When the data gathering apertures are contained in a flexible web or carrier so that the instantaneous positions of the data gathering apertures are unknown, a self-cohering algorithm is used to determine their positions so that coherent aperture combining can be performed.
Owner:WILK ULTRASOUND OF CANADA

Method of extracting and searching integral histograms of data samples

A computer implemented method extracts an integral histogram from sampled data, such as time series data, images, and volumetric data. First, a set of samples is acquired from a real-word signal. The set of samples is scanned in a predetermined order. For each current sample, an integral histogram integrating a histogram of the current sample and integral histograms of previously scanned samples is constructed.
Owner:MITSUBISHI ELECTRIC RES LAB INC

Method for charting financial market activities

A method and apparatus for augmenting the conventional price-time chart used for technical analysis of securities price movements. In a preferred embodiment, the method takes a conventional Bar Chart or Japanese Candlestick Chart with a definite timeframe and then for each bar on the chart; it statistically quantifies the volume and time distribution throughout the range of the bar into discrete elements, using price and volume data within the bar interval from a sub-timeframe. The discrete elements are then graphically overlaid on the bar in a way which preserves its original appearance as close as possible. The apparatus is an application software which implements the method by displaying the conventional price-time chart, calculating the relevant elements and overlaying the values on the chart bars, either in a static or real-time market setting.
Owner:PROSTICKS COM

System and methods for image segmentation in N-dimensional space

A system and methods for the efficient segmentation of globally optimal surfaces representing object boundaries in volumetric datasets is provided. An optical surface detection system and methods are provided that are capable of simultaneously detecting multiple interacting surfaces in which the optimality is controlled by the cost functions designed for individual surfaces and by several geometric constraints defining the surface smoothness and interrelations. The present invention includes surface segmentation using a layered graph-theoretic approach that optimally segments multiple interacting surfaces of a single object using a pre-segmentation step, after which the segmentation of all desired surfaces of the object are performed simultaneously in a single optimization process.
Owner:UNIV OF IOWA RES FOUND

Systems and methods implementing frequency-steered acoustic arrays for 2D and 3D imaging

Frequency-steered acoustic arrays transmitting and / or receiving multiple, angularly dispersed acoustic beams are used to generate 2D and 3D images. Input pulses to the arrays are generally non-linear, frequency-modulated pulses. Frequency-steered acoustic arrays may be provided in one-dimensional linear and two dimensional planar and curvilinear configurations, may be operated as single order or multiple order arrays, may employ periodic or non-periodic transducer element spacing, and may be mechanically scanned to generate 2D and 3D volumetric data. Multiple imaging fields of view may generated in different directions by switching the polarity of phase-shifted array transducer elements. Multiple frequency-steered arrays arranged in an X-configuration provide a wide, contiguous field of view and multiple frequency steered arrays arranged in a T-configuration provide orthogonally oriented fields of view. Methods and systems for operating acoustic arrays in a frequency-steered mode in combination a mechanical beam steering mode, electronic time-delay and phase shift beam forming modes, and phase comparison angle estimation modes are also provided.
Owner:TELEDYNE RESON

3D display system and method

A 3D volumetric display system is configured to generate 3D diagnostic displays of 3D volumetric data acquired from a patient by an imaging system in a virtual-reality environment and to permit a user to conduct diagnostic interpretation of images in the virtual-reality environment and to permit the user to interact with the 3D diagnostic displays.
Owner:GE MEDICAL SYST INFORMATION TECH

System and methods for image segmentation in n-dimensional space

A system and methods for the efficient segmentation of globally optimal surfaces representing object boundaries in volumetric datasets is provided. An optical surface detection system and methods are provided that are capable of simultaneously detecting multiple interacting surfaces in which the optimality is controlled by the cost functions designed for individual surfaces and by several geometric constraints defining the surface smoothness and interrelations.
Owner:UNIV OF IOWA RES FOUND

System and methods for image segmentation in N-dimensional space

A system and methods for the efficient segmentation of globally optimal surfaces representing object boundaries in volumetric datasets is provided. An optical surface detection system and methods are provided that are capable of simultaneously detecting multiple interacting surfaces in which the optimality is controlled by the cost functions designed for individual surfaces and by several geometric constraints defining the surface smoothness and interrelations. The graph search applications use objective functions that incorporate non-uniform cost terms such as “on-surface” costs as well as “in-region” costs.
Owner:UNIV OF IOWA RES FOUND

System for multi-dimensional anatomical functional imaging

A cardiac functional analysis system reconstructs a 3D anatomical image volume using image frames acquired at predetermined cardiac phases over multiple cardiac cycles in response to a trigger derived from hemodynamic signals. A medical imaging system generates 3D anatomical imaging volume datasets from acquired 2D anatomical images. The system includes an image acquisition device for acquiring 2D anatomical images of a portion of patient anatomy in selectable angularly variable imaging planes in response to a synchronization signal derived from a patient blood flow related parameter. A synchronization processor provides the synchronization signal derived from the patient blood flow related parameter. An image processor processes 2D images acquired by the image acquisition device of the portion of patient anatomy in multiple different imaging planes having relative angular separation, to provide a 3D image reconstruction of the portion of patient anatomy.
Owner:SIEMENS HEALTHCARE GMBH

Method 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-axis and a z-axis. Voxel set (120) is represented in an alternate 3D cartesian coordinate system having an x′-axis, a y′-axis, and a z′-axis. Each point P(x, y, z) in the point cloud (100) and its associated set of attributes, such as intensity or color, normals, density and / or layer data, are mapped to a voxel V(x′, y′, z′) in the voxel set (120). Given that the point cloud has a high magnitude of points, multiple points from the point cloud may be mapped to a single voxel. When two or more points are mapped to the same voxel, the disparate attribute sets of the mapped points are combined so that each voxel in the voxel set is associated with only one set of attributes.
Owner:MCLOUD TECH USA INC

Method and apparatus for co-display of inverse mode ultrasound images and histogram information

An ultrasound system is provided for analyzing a region of interest. The ultrasound system includes a probe for acquiring ultrasound information associated with the region of interest and a memory for storing a volumetric data set corresponding to at least a subset of the ultrasound information for at least a portion of the region of interest. The system further includes at least one processor for generating histogram information based on the volumetric data set and for generating ultrasound images based on the volumetric data set. The processor formats the histogram information and the ultrasound images to be co-displayed. The system further includes a display for simultaneously co-displaying the histogram information and the ultrasound images.
Owner:GE MEDICAL SYST GLOBAL TECH CO LLC

Radiotherapy support apparatus

ActiveUS20090175418A1Performed accurately and safelyExcessive irradiationX-ray apparatusX-ray/gamma-ray/particle-irradiation therapyVolumetric dataComputer science
A radiotherapy treatment support apparatus includes a storage unit which stores absorption dose volume data expressing a spatial distribution of absorption dose in a subject, a generation unit which generates fusion data associated with morphology volume data of the subject and the absorption dose volume data so as to be associated with a plurality of segments, and a display unit which displays an image which has the distribution of absorption dose superimposed on the two-dimensional morphology image of the subject using the fusion data.
Owner:TOSHIBA MEDICAL SYST CORP

System and methods for multi-dimensional rendering and display of full volumetric data sets

A stand-alone platform and a method for the multi-dimensional rendering, display, manipulation, and analysis of full high resolution volumetric data sets. The systems and methods provide the ability to volumetrically render images with extremely high resolution in applications such as medical imaging procedures, digital microscopy such as in use of a confocal microscope, and other areas where extremely large data sets are produced from the imaging process. Certain embodiments of the system and methods produce left and right eye images of the rendered data, for viewing in parallax via a synchronized headset, and the ability to manipulate the data and display of image data easily and in real time.
Owner:KENT STATE UNIV

Method for database guided simultaneous multi slice object detection in three dimensional volumetric data

The present invention is directed to a method for automatic detection and segmentation of a target anatomical structure in received three dimensional (3D) volumetric medical images using a database of a set of volumetric images with expertly delineated anatomical structures. A 3D anatomical structure detection and segmentation module is trained offline by learning anatomical structure appearance using the set of expertly delineated anatomical structures. A received volumetric image for the anatomical structure of interest is searched online using the offline learned 3D anatomical structure detection and segmentation module.
Owner:SIEMENS MEDICAL SOLUTIONS USA INC

Method and apparatus for visualization of 3D voxel data using lit opacity volumes with shading

A volume rendering process is disclosed for improving the visual quality of images produced by rendering and displaying volumetric data in voxel format for the display of three-dimensional (3D) data on a two-dimensional (2D) display with shading and opacity to control the realistic display of images rendered from the voxels. The process includes partitioning the plurality of voxels among a plurality of slices with each slice corresponding to a respective region of the volume. Each voxel includes an opacity value adjusted by applying an opacity curve to the value. The opacity value of each voxel in each cell in the volume is converted into a new visual opacity value that is used to calculate a new visual opacity gradient for only one voxel in the center of each cell. The visual opacity gradient is used to calculate the shading, used to modify the color of individual voxels based on the orientation of opacity isosurfaces passing through each voxel in the volume, in order to create a high quality, realistic image.
Owner:SCHLUMBERGER TECH CORP

Interactive 3D data editing via 2D graphical drawing tools

Method and system for 3D data editing is disclosed. A 3D volumetric data is rendered in a rendering space. A 2D graphical drawing tool is selected and used to create a 2D structure. Apply a 3D operation to the 3D volumetric data based on the 2D structure.
Owner:EDDA TECH

Spatial characterization of a structure located within an object by identifying 2d representations of the structure within section planes

InactiveUS20100099979A1Clear visualizationPrecise quantitative comparisonImage enhancementImage analysisSection planeSonification
It is described a virtual pullback as a visualization and quantification tool that allows an interventional cardiologist to easily assess stent expansion. The virtual pullback visualizes the stent and / or the vessel lumen similar to an Intravascular Ultrasound (IVUS) pullback. The virtual pullback is performed in volumetric data along a reference line. The volumetric data can be a reconstruction of rotational 2D X-ray attenuation data. Planes perpendicular to the reference line are visualized as the position along the reference line changes. This view is for interventional cardiologists a very familiar view as they resemble IVUS data and may show a section plane through a vessel lumen or a stent. In these perpendicular section planes automatic measurements, such as minimum and maximum diameter, and cross sectional area of the stent can be calculated and displayed. Combining these 2D measurements allows also volumetric measurements to be calculated and displayed.
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV

Spatially smart optical sensing and scanning

Methods, devices and systems of an optical sensor for spatially smart 3-D object measurements using variable focal length lenses to target both specular and diffuse objects by matching transverse dimensions of the sampling optical beam to the transverse size of the flat target for given axial target distance for instantaneous spatial mapping of flat target, zone. The sensor allows volumetric data compressed remote sensing of object transverse dimensions including cross-sectional size, motion transverse displacement, inter-objects transverse gap distance, 3-D animation data acquisition, laser-based 3-D machining, and 3-D inspection and testing. An embodiment provides a 2-D optical display using 2-D laser scanning and 3-D beamforming optics engaged with sensor optics to measure distance of display screen from the laser source and scanning optics by adjusting its focus to produce the smallest focused beam spot on the display screen. With known screen distance, the angular scan range for the scan mirrors can be computed to generate the number of scanned spots in the 2-D display.
Owner:UNIV OF CENT FLORIDA RES FOUND INC +2

Surface-based characteristic path generation

This document discusses, among other things, systems and methods for efficiently using surface data to calculate a characteristic path of a virtual three-dimensional object. A surface mesh is constructed using segmented volumetric data representing the object. Geodesic distance from a reference point is calculated for each shape element in the surface mesh. The geodesic distance values are used to produce rings. Ring centroids are computed and connected to form the characteristic path, which is optionally pruned and smoothed.
Owner:VITAL IMAGES

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.
Owner:LANDMARK GRAPHICS

System and Method for Performing a Biopsy of a Target Volume and a Computing Device for Planning the Same

A system and method for performing a biopsy of a target volume and a computing device for planning the same are provided. A three-dimensional ultrasound transducer captures ultrasound volume data from the target volume. A three-dimensional registration module registers the ultrasound volume data with supplementary volume data related to the target volume. A biopsy planning module processes the ultrasound volume data and the supplementary volume data in combination in order to develop a biopsy plan for the target volume. A biopsy needle biopsies the target volume in accordance with the biopsy plan.
Owner:THE JOHN P ROBARTS RES INST
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