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8184877 Renormalization of dual-energy images  
A method is disclosed for generating a composite image from dual-energy projection radiographic image data and renormalizing the composite image such that the pixel values for the composite image...
8184769 Method and apparatus to facilitate using multiple radiation-detection views to differentiate one material from another  
At least three radiation-detection views are used to facilitate identifying material as comprises an object being assessed along a beam path relative to that object. This comprises developing a...
8180133 Image processing method and image processing apparatus, and program  
An image processing method includes identifying a body region in a tomographic image based on pixel values within the tomographic image, extracting a bone muscle region corresponding to essential...
8160206 Dual-energy imaging at reduced sample rates  
The present disclosure relates to the generation of dual-energy X-ray data using a data sampling rate comparable to the rate utilized for single-energy imaging. In accordance with the present...
8121248 X-ray detector methods and apparatus  
A method includes performing an x-ray focal spot deflection to generate two complete projections from two different channels of an x-ray detector, wherein the channels are purposefully different...
8116431 Automobile scanning system  
A dual energy x-ray imaging system searches a moving automobile for concealed objects. Dual energy operation is achieved by operating an x-ray source at a constant potential of 100KV to 150KV, and...
8111803 Method for energy sensitive computed tomography using checkerboard filtering  
Methods for energy-sensitive computed tomography systems that use checkerboard filtering. A method of enhancing image analysis of projection data acquired using a detector configured with a...
8068133 Image processing apparatus and image processing method  
An image processing apparatus includes a first spectrum estimating unit for reading the image information from a storage unit and estimating a spectrum of an object based on the read image...
8050385 Event sharing restoration for photon counting detectors  
Photon counting detectors may suffer from pulse sharing effects and fluorescence photon generation, which may lead to a degradation of the measured signals. According to an exemplary embodiment of...
8031831 Voltage and or current modulation in dual energy computed tomography  
To prevent patients from being overexposed or underexposed, it has been attempted to modulate either voltage or current in conventional single energy CT systems. The voltage modulation causes...
8027429 Device and method for real-time mark of substance identification system  
Disclosed are a method and a device for real-time mark for a high-energy X-ray dual-energy imaging container inspection system in the radiation imaging field. The method comprises the steps of...
8019044 Image acquisition for dual energy imaging  
Acquisition techniques for dual energy (DE) chest imaging system. Technique factors include the added x-ray filtration, kVp pair, and the allocation of dose between low- and high-energy...
8000512 Slit collimator scatter correction  
A technique is presented for establishing a patient's BMD using a dual-energy X-ray imaging system. In the technique, the dual-energy X-ray imaging system utilizes a slit collimator to expose a...
7994481 Radiation imaging apparatus, method of controlling the same, and radiation imaging system  
There are provided an apparatus capable of complying with arbitrary data acquisition period (frame rate) change instruction without increasing load and cost, and a method and a system for...
7970096 Method of and system for low cost implementation of dual energy CT imaging  
The disclosed CT scanner comprises at least one source of X-rays; a detector array comprising a plurality of detectors; and an X-ray filter mask arrangement disposed between the source of X-rays...
7965813 Bone mineral density assessment using mammography system  
A method and system for determining the bone mineral density of a body extremity. An image of a body extremity is acquired using a mammography x-ray system whereby a bone mineral density can be...
7957506 Automobile scanning system  
A dual energy x-ray imaging system searches a moving automobile for concealed objects. Dual energy operation is achieved by operating an x-ray source at a constant potential of 100 KV to 150 KV,...
7953207 Radiation conversion panel and method of capturing radiation image therewith  
A radiation conversion panel includes a first pixel group from which electric charges are read after a first energy-level image capturing cycle and after a second energy-level image capturing...
7949101 X-ray scanners and X-ray sources therefor  
The present invention is directed toward an X-ray scanner that has an electron source and an anode. The anode has a target surface with a series of material areas spaced along it in a scanning...
7940893 Method for distinguishing between four materials in tomographic records of a dual-energy CT system  
A method and a CT system are disclosed having a computation unit for distinguishing between four materials (M1, M2, M3, M4) in tomographic records of a dual-energy CT system, wherein the size of a...
7894576 Spectral computed tomography using correlated photon number and energy measurements  
A computed tomography system includes a plurality of radiation sensitive detector elements (100) which generate a time varying signal indicative of x-ray photons received by the various detector...
7885372 System and method for energy sensitive computed tomography  
An energy-sensitive computed tomography system is provided. The energy-sensitive computed tomography system includes an X-ray source configured to emit an X-ray beam resulting from electrons...
7869559 X-ray detector methods and apparatus  
A method includes performing an x-ray focal spot deflection to generate two complete projections from two different channels of an x-ray detector, wherein the channels are purposefully different...
7864917 Imaging apparatus using distributed x-ray souces and method thereof  
An imaging apparatus includes a multi-dimensional assembly supporting a plurality of x-ray sources that are individually addressable. The plurality of x-ray sources is further configurable to...
7852979 Dual-focus X-ray tube for resolution enhancement and energy sensitive CT  
A CT system includes a rotatable gantry having an opening for receiving an object to be scanned, at least one x-ray source coupled to the gantry and configured to project x-rays toward the object,...
7813478 Method and apparatus to facilitate provision and use of multiple X-ray sources  
One provides (101 and 102) two or more X-ray sources (202 and 204) that are independent and discrete from one another. By one approach, these X-ray sources emit corresponding X-rays (203 and 205)...
7813474 Method and apparatus for performing dual-spectrum CT with fast KV modulation at multiple-view intervals  
A CT system includes a rotatable gantry having an opening for receiving a subject to be scanned, a rotatable gantry having an opening for receiving a subject to be scanned, an x-ray source...
7801275 Imaging system  
A medical imaging system is provided. The medical imaging system includes an imaging device with a radiation source and a detector, a control unit; and a processing unit. The processing unit is...
7778382 CT imaging system with multiple peak x-ray source  
An x-ray source (32) for performing energy discrimination within an imaging system (10) includes a cathode-emitting device (82) for emitting electrons and an anode (81) that has a target (80)...
7773725 Multi-energy radiography using monoenergetic pulsed source  
A method and apparatus for multi-energy object inspection using a brilliant x-ray source. A first mono-energetic x-ray image of an object at a first selected energy is generated. A second...
7756239 Diagnostic imaging two non K-edge basis materials plus N K-edge contrast agents  
A diagnostic imaging system in an example comprises a high frequency electromagnetic energy source, a detector, a data acquisition system (DAS), and a computer. The high frequency electromagnetic...
7746976 Bone mineral density assessment using mammography system  
A method and system for determining the bone mineral density of a body extremity. An image of a body extremity is acquired using a mammography x-ray system whereby a bone mineral density can be...
7742568 Automobile scanning system  
A dual-energy x-ray imaging system searches a moving automobile for concealed objects. Dual energy operation is achieved by operating an x-ray source at a constant potential of 100 KV to 150 KV,...
7724875 Image guided acquisition of quantitative dual energy data  
A technique for establishing texture metrics and bone mineral density (BMD) within an anatomical region of interest. A digital imaging system is used to acquire a standard digital X-ray image with...
7724865 System and method of optimizing a monochromatic representation of basis material decomposed CT images  
A system and method of a diagnostic imaging system includes a high frequency electromagnetic energy source that emits a beam of high frequency electromagnetic energy toward an object to be imaged,...
7724869 Detector array and device using the same  
Disclosed is a detector array comprising a first linear array for detecting a first ray and a second ray which penetrate through a first plurality of parts of the inspected object to acquire first...
7702075 Energy spectrum modulation apparatus, material discrimination method and device, image processing method  
Disclosed are an energy spectrum modulation apparatus, a material discrimination method and a device thereof, as well as an image processing method are disclosed, which can discriminate the...
7657000 Method and apparatus for dual energy radiography  
There is provided an apparatus and method for x-ray imaging of a subject that comprises an x ray source emitting a spectrum of radiation of low energy component as well as high energy component to...
7646851 Device and method for generating X-rays having different energy levels and material discrimination system  
Disclosed is a device and method for generating X-rays having different energy levels as well as a material discrimination system thereof. The method comprises the steps of: generating a first...
7643866 Method for producing a computed tomography display of tissue structures by applying a contrast medium  
A method is disclosed for producing a computed tomography display of tissue structures by applying a contrast medium. A contrast medium is applied to a patient for better visualization of the...
7634061 High resolution imaging system  
New sensors, pixel detectors and different embodiments of multi-channel integrated circuit are disclosed. The new high energy and spatial resolution sensors use solid state detectors. Each channel...
7627078 Methods and apparatus for detecting structural, perfusion, and functional abnormalities  
A Multi-Energy Computed Tomography (MECT) System is provided. The system includes a radiation source rotatable about a patient, a radiation detector, and a computer coupled to the radiation source...
7606349 Selective generation of radiation at multiple energy levels  
A system may comprise a cathode, a target, one or more switches, and a conductive element. The cathode may be configured and arranged to generate an electron beam, and the target may be configured...
7561665 Dual pulse imaging  
A dual pulse imaging method is provided comprising the steps of generating a first image of a region of interest by a first pulse delivering a first dose, generating a second image of the region of...
7519207 Detection and correction method for radiograph orientation  
A method for detecting and correcting the orientation of a radiograph. The method generally includes the steps of accessing the radiograph; locating a region of interest in the radiograph; and...
7489762 Method for recording projection images  
In a method for performing recordings for dual absorptiometry, a high-energy radiation pulse is performed before a low-energy radiation pulse. Furthermore the high-energy radiation pulse is...
7483511 Inspection system and method  
A method of determining a presence of items of interest within a cargo container is disclosed. The method includes obtaining information from an initial radiation scan of at least one of the cargo...
7483556 Energy subtraction processing method and apparatus  
Radiation image signals representing radiation images of a single object, which have been formed with several kinds of radiation having different energy distributions, are obtained. Energy...
7480362 Method and apparatus for spectral computed tomography  
An apparatus receives signals generated by a detector (100) sensitive to ionizing radiation such as x-rays. A differentiator (204) generates an output indicative of the rate of change of the...
7477727 Digital X-ray image detector array  
A method and apparatus for generating a digital X-ray image is disclosed. The method comprises starting an exposure period wherein an array of X-ray receptors are exposed to X-ray radiation,...
Matches 1 - 50 out of 147 1 2 3 >