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| Number | Title | Issue Date |
| 8121256 | Radiographic image data correction method and apparatus and radiography apparatus Offset correction based on offset correction data is performed on radiographic image data that have been read out from a radiation image detector, and the offset correction data are updated. In the offset correction method, correction data for low-frequency componen... | 02/21/2012 |
| 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 alternately switching between two beam filters. The first filter is a... | 02/14/2012 |
| 7940892 | Energy substraction method and apparatus The energy subtraction apparatus of the present invention comprises an image input device which inputs two or more different kinds of radiographic images having been taken by irradiating a subject with radiation rays with different radiation qualities, an informatio... | 05/10/2011 |
| 7769138 | Apparatus and method of improved angiographic imaging The x-ray tube is energized (12) and the myocardium is imaged (16) while contrast agent is infused to the coronary arteries of the subject (14). Single photon counting data acquired with the detector while two thresholds are set to form simultan... | 08/03/2010 |
| 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, and alternately switching between two beam filters. The first filter is... | 06/22/2010 |
| 7672431 | X-ray arrangement and x-ray contrast process for imaging an object under examination that contains at least one radiopaque element as well as use of the x-ray arrangement To increase the contrast in the imaging in an object under examination that contains at least one radiopaque element, an arrangement that has the following features is used: a) at least one essentially polychromatic x-ray radiation source that emits x-ray radiation,... | 03/02/2010 |
| 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 be attenuated by the subject. At least one CR plate adapted to absorb... | 02/02/2010 |
| 7649979 | Artifact reduction system and method for radiological imaging system The effects of electromagnetic interference (EMI) on X-ray image data is corrected by characterizing the EMI and processing the image data to subtract the EMI effects from the image data. The X-ray image data, along with offset data, are collected in a conventional ... | 01/19/2010 |
| 7423253 | Method and apparatus for correcting excess signals in an imaging system A method and apparatus for excess signal compensation in an imaging system is described. In one particular embodiment, the invention provides for non-linear background, offset (due to time dependent dark current) and/or lag (including constant, linear and non-linear... | 09/09/2008 |
| 7412024 | X-ray mammography A digital x-ray phase contrast soft tissue imaging and mammography system offers significant cancer detection sensitivity and a significant improvement in accurate detection and interpretation of mammograms. In addition, the proposed system produces digital mammogra... | 08/12/2008 |
| 7412031 | Radiation imaging apparatus, radiation imaging system and radiation imaging method A computer-readable medium is encoded with a computer program for operating a computer to control a radiation detector and a display apparatus. The computer is operated to derive a processed image by subtraction processing of a first image derived by a first energy ... | 08/12/2008 |
| 7412023 | X-ray diagnostic apparatus A X-ray diagnostic apparatus includes an X-ray imaging unit including an X-ray tube and an X-ray detecting unit to generate an X-ray image, an image generating unit generating a 3D non-blood vessel image and a 3D blood vessel image from an original 3D image generate... | 08/12/2008 |
| 7386089 | Radiographic imaging apparatus, control method thereof, and radiographic imaging system A radiographic imaging apparatus includes a radiation detection circuit with elements arranged two-dimensionally to convert radiation into an electrical signal, a driving mechanism which changes a positional relationship between the components, a memory which stores... | 06/10/2008 |
| 7372943 | Method for recording projection image In recording projection images for dual absorptiometry, the optical thickness of an object being examined is determined on the basis of a projection image recorded in a high-energy range, and parameters for recording a projection image in the low-energy range are se... | 05/13/2008 |
| 7358502 | Devices, systems, and methods for imaging Certain exemplary embodiments comprise a system, which can comprise an imaging plate. The imaging plate can be exposable by an x-ray source. The imaging plate can be configured to be used in digital radiographic imaging. The imaging plate can comprise a phosphor-bas... | 04/15/2008 |
| 7342233 | Method and arrangement relating to x-ray imaging An X-ray apparatus is provided for acquisition of images containing spectral information. An X-ray source and a collimator having multiple slits are operable together with a set of line detectors, the line detectors including linear arrays of photon counting channel... | 03/11/2008 |
| 7343000 | Imaging apparatus and imaging system An X-ray image radiographing system according to the present invention comprises an X-ray generator, a detection unit, a correction unit for performing a correction processing for the data outputted from the detection unit, and an output unit such as a monitor for o... | 03/11/2008 |
| 7340026 | Reconstruction of the current flow in a vessel system The invention relates to a method of reconstructing the current flow, or the bolus arrival times, in a vessel system. For the sections (i) of the vessel tree, bolus arrival times (mi) are measured, for example in connection with an injection of contrast m... | 03/04/2008 |
| 7340083 | Method and system for atherosclerosis risk scoring A method for characterizing the risk associated with atherosclerosis is disclosed. The method uses one or more images of cross-sections of the artery or other vessel of interest to identify and locate components of the atherosclerotic deposit, including any hemorrha... | 03/04/2008 |
| 7330535 | X-ray flux management device The invention is directed to an x-ray flux management device that adaptively attenuates an x-ray beam to limit the incident flux reaching a subject and radiographic detectors in potentially high-flux areas while not affecting the incident flux and detector measureme... | 02/12/2008 |
| 7324625 | Contraband detection systems using a large-angle cone beam CT system A contraband detection system using a cone beam computed tomography scanner. The cone beam scanner allows for rapid acquisition of data for computing three dimensional density maps of objects within items under inspection. Where greater resolution is desired, the im... | 01/29/2008 |
| 7321674 | Method of normalising a digital signal representation of an image A digital signal representation of an image is normalized by applying a normalization parameter to all pixels of the digital signal representation of the image or to the pixels of a multi-scale representation of the image. The normalization parameter can be derived ... | 01/22/2008 |
| 7286640 | Dual-band detector system for x-ray imaging of biological samples A digital dual-band detector functions as an imaging platform capable of extracting hard and soft tissue images, for example. The detector has a first detector system comprising a first scintillator for converting x-rays from a sample to an first optical signal, and... | 10/23/2007 |
| 7272429 | Methods and apparatus for facilitating a reduction in artifacts A method for facilitating a reduction in artifacts includes receiving data regarding a first energy spectrum of a scan of an object, and receiving data regarding a second energy spectrum of a scan of the object, wherein the second energy spectrum is different than t... | 09/18/2007 |
| 7260179 | Method for producing X-ray images The invention relates to a method for producing X-ray images, by which successive X-ray images are recorded using a first semiconductor detector arranged in a first plane and a second semiconductor detector arranged in a second plane. For the purpose of correcting t... | 08/21/2007 |
| 7233689 | Method of processing images for digital subtraction angiography The invention relates to the field of digital subtraction angiography. An image processing method is applied to a digitized mask (100) and to a sequence of digitized opacified images (101). A logarithmic function (105) is applied to the values o... | 06/19/2007 |
| 7227926 | Imaging apparatus and imaging system An X-ray image radiographing system comprises an X-ray generator, a detection unit, a correction unit for performing a correction processing for the data outputted from the detection unit, and an output unit for outputting data processed by the correction unit. More... | 06/05/2007 |
| 7224770 | X-ray apparatus with adapted waiting time between successive exposures X-ray apparatus has a radiation source operated by a voltage generator, a digital solid-state radiation detector and a control device controlling the operation of the apparatus. The control device determines a waiting time between two successive image acquisitions, ... | 05/29/2007 |
| 7221729 | X-ray computer tomography apparatus An X-ray computer tomography apparatus which performs prep scanning prior to main scanning to acquire information for use in reconstruction of a tomographic image for diagnosis, the main scanning including rotary scanning around a rotation axis, and axial scanning a... | 05/22/2007 |
| 7208717 | Method and apparatus for correcting excess signals in an imaging system A method and apparatus for excess signal compensation in an imaging system is described. In one particular embodiment, the invention provides for non-linear background, offset (due to time dependent dark current) and/or lag (including constant, linear and non-linear... | 04/24/2007 |
| 7203273 | Scanning dual energy X-ray imaging The invention concerns a method for a dentomaxillofacial X-ray imaging. It is provided an X-ray beam (15) having a first radiation spectrum and a flat cross-sectional form towards a predetermined dentomaxillofacial area (Q) of a patient (P), and an image rece... | 04/10/2007 |
| 7127031 | Radiation imaging apparatus, radiation imaging system and radiation imaging method A radiation detector includes radiation detection elements for detecting radiations which have penetrated an object as electric signals, with the elements arranged in a two-dimensional array, and an image display controller for producing a radiation image of the obj... | 10/24/2006 |
| 7123687 | Method for displaying digital X-ray image data at high resolution A method for providing X-ray image data signals corresponding to a selected portion of a two-dimensional image at an enhanced image resolution. During selective exposure of an X-ray receptor to X-ray radiation corresponding to the subject image, image pixel data cor... | 10/17/2006 |
| 7120282 | Method and apparatus for correcting digital X-ray images An image correction system and method includes a digital data input unit configured to receive digital pixel data corresponding to a pixel level for a particular pixel location on a detector panel. An offset memory stores offset pixel values for each of a plurality ... | 10/10/2006 |
| 7082180 | Methods and apparatus for computing volumetric perfusion A method for computing volumetric perfusion in a spatially stationary organ using a computed tomography (CT) imaging system includes positioning an area detector such that the area detector encompasses a spatially stationary organ within the field of view of the ima... | 07/25/2006 |
| 7075061 | Method of calibrating a digital X-ray detector and corresponding X-ray device In a time-saving method for calibrating a digital X-ray detector (3) of an X-ray device (1), provision is made for a calibration image (K,M), which is intended for linking with an X-ray image (RB) taken by the X-ray detector (3), to be smoothed ... | 07/11/2006 |
| 7065177 | Method and apparatus for correcting a retained image artifact A technique for compensating for a retained image includes employing bimodal readout of alternating light and dark images. The bimodal readout technique results from reading either light or dark frames more rapidly, allowing additional time to be allocated to the X-... | 06/20/2006 |
| 7042979 | X-ray diagnosis apparatus having a plurality of image acquisition modes An offset data calculator has a normal offset data calculation function for calculating offset data based on data obtained from an X-ray flat panel detector while no X-ray is incident in each of the modes, i.e., an entire region fluoroscopy mode, a partial region fl... | 05/09/2006 |
| 7042980 | Radiographic apparatus An object of this invention is to implement a radiographic apparatus which can stably obtain a moving image at a high speed by suppressing a voltage variation in GND or power supply line and omitting the standby period for each frame. To achieve this object, during ... | 05/09/2006 |
| 7031426 | Methods and system for detecting components of plaque A method including detecting components of plaque using a multi-energy computed tomography (MECT) system is provided. ... | 04/18/2006 |
