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| Number | Title | Issue Date |
| 7339159 | Phantom for evaluating accuracy of image registration software Provided is a phantom for evaluating the accuracy of image registration software based on a result of matching tomograms of a predetermined position of the phantom, taken using two or more imaging apparatuses. Accordingly, it is possible to more efficiently evaluate... | 03/04/2008 |
| 7336759 | Scattering compensating method and scattering measuring method A method for compensating scattering includes acquiring the projective length of non-subject entities and acquiring the projective length of an object of radiography wherein the object of radiography is radiographed with a beam thickness set to the same value as a d... | 02/26/2008 |
| 7336760 | Methods, systems, and computer-program products to estimate scattered radiation in cone-beam computerized tomographic images and the like Disclosed are imaging systems, methods, and computer program products that generate estimates of scattered radiation in tomographic imaging systems, such as cone-beam computerized tomography (CBCT) systems, and the like. In an exemplary embodiment, a first group of ... | 02/26/2008 |
| 7334940 | Scatter measurement method, scatter correction method, and X-ray CT apparatus A method for correcting scatter in multi-slice imaging wherein, a projection p and a scatter correction factor R(d, do) are stored in association with each other, a projection p is determined from data D0 collected by imaging a subject with an X-ray beam with... | 02/26/2008 |
| 7330208 | Electronic imaging system with adjusted dark floor correction An electronic imaging system includes a method for calibrating an image sensor having a array of pixels each used in capturing an image, the method comprising the steps of capturing first dark floor values at a first time from substantially all of the pixels in the ... | 02/12/2008 |
| 7330531 | System for quantitative radiographic imaging A system for spectroscopic imaging of bodily tissue in which a scintillation screen and a charged coupled device (CCD) are used to accurately image selected tissue. Applications include the imaging of radionuclide distributions within the human body or the use of a ... | 02/12/2008 |
| 7327826 | X-ray imaging apparatus and operating method therefor, with subject thickness-dependent use of a scattered ray grid In order to achieve a particularly good image sharpness, in a method and apparatus for radiological imaging of an examination subject, a digital x-ray detector is arranged behind the subject and a scattered-ray grid is positionable between the subject and the x-ray ... | 02/05/2008 |
| 7327830 | Collimation and calibration integrative apparatus for container inspection system A collimation and calibration integrative apparatus for container inspection system includes a collimating block; a calibrating block; a base plate; a motor and a plurality of supporting units fixed on the base plate; a transmission unit coupled to the motor for tra... | 02/05/2008 |
| 7324628 | Method of testing a medical imaging device A method of testing a portable x-ray device includes sensing an environmental stimulus experienced by the portable x-ray device, transmitting a signal related to the environmental stimulus to a processing unit, determining whether the signal meets an alert threshold... | 01/29/2008 |
| 7324679 | Medical image radiographing system and portable radiographing information apparatus A medical image radiographing system has a medical image reading apparatus to read out identification information of a cassette and a medical image from the cassette recording the medical image radiographed according to radiographing order information, a portable ra... | 01/29/2008 |
| 7321839 | Method and apparatus for calibration of camera system, and method of manufacturing camera system A first mirror and a second mirror are disposed in such a manner that their reflective surfaces are parallel and face toward each other. A mark is drawn between the first mirror and the second mirror. An image of the reflections of the mark in the first mirror and t... | 01/22/2008 |
| 7315640 | X-ray image processing A method of enhancing and normalizing x-ray images, particularly mammograms, by correcting the image for digitizer blur, glare from the intensifying screen and the anode-heel effect. The method also allows the calculation of the compressed thickness of the imaged br... | 01/01/2008 |
| 7314311 | Method for testing the quality of a detector module for an x-ray computer tomograph A method is for testing the quality of a detector module for an x-ray computer tomograph. In order to achieve a quality test of detector modules, it is proposed in at least one embodiment, to fit a holding device with at least one reference detector module and with ... | 01/01/2008 |
| 7315604 | Method for an x-ray device and computer tomograph for reducing beam hardening artifacts from a generated image of an object A method is disclosed for an x-ray device and a computer tomograph for suppressing beam hardening artifacts in a generated image of an object, for example in a tomogram of a patient. In the method, N measured values are acquired relating to N different energy ranges... | 01/01/2008 |
| 7311440 | Anatomically conforming intraoral dental radiographic sensor A system is described for obtaining intraoral radiographic images using an anatomically conforming sensor and a method is described for correcting the projective distortions caused by the inclination of the plane of the imaging sensor relative to the x-ray beam. The... | 12/25/2007 |
| 7313224 | Wireless integrated automatic exposure control module Systems and methods for providing independent exposure detection, X-ray spectrum and timing compensation, and providing an exposure termination signal to an X-ray system. The system incorporates an interface for receiving exposure characteristic data such as kVp, sp... | 12/25/2007 |
| 7313223 | Device, arrangement and method for indicating positions on areas exposed to x-ray radiation sources and light sources A unit (11) with a length (L) is utilized in a device for indicating the position of an edge (7a) of a first area (7) which is irradiated by an x-ray radiation source (2) in relation to an edge (9a) of a second area, ... | 12/25/2007 |
| 7309160 | Method and arrangement for x-ray examination In order during an x-ray examination, despite a variable foreign magnetic field at the location of an x-ray tube to still enable x-ray images with image sections giving the same coverage to be generated, there is provision in accordance with the invention to compens... | 12/18/2007 |
| 7309161 | Method for determination of magnification in a line scan camera The magnification Mref for a line scan camera can be found by exploiting a difference in the way Mref affects the notion of ‘focus’ in the x and y directions. Mref enters into the calculations for selecting z while focusing in th... | 12/18/2007 |
| 7302041 | Method for estimating the remaining life span of an X-ray radiator In a method for estimating the remaining life span of an X-ray radiator that has been installed in an X-ray apparatus and is operational, under specified test conditions and at time intervals, a measurement value that is indicative for the remaining life span of the... | 11/27/2007 |
| 7298820 | Portal imaging using modulated treatment beam A radiation therapy system produces a treatment beam that is detected by an electronic portal imaging device (EPID) after it passes through the subject being treated. A chopper wheel modulates low energy components of the beam while leaving the higher energy compone... | 11/20/2007 |
| 7298825 | Portable digital detector system A detector for a portable imaging system includes a flash memory including a full set of configuration parameters and calibration files. The detector also includes a transmit and receive unit for communicating with the portable imaging system. The detector still fur... | 11/20/2007 |
| 7295691 | Computer aided diagnosis of an image set A method, system, and storage medium for computer aided processing of an image set includes employing a data source, the data source including an image set acquired from X-ray projection imaging, x-ray computed tomography, or x-ray tomosynthesis, defining a region o... | 11/13/2007 |
| 7292674 | Methods and devices for quantitative analysis of x-ray images The present invention relates to network enabled analysis of x-ray images. Also described are devices comprising calibration phantoms; methods of using these devices; methods of formulating databases containing information regarding x-ray images; the databases thems... | 11/06/2007 |
| 7292721 | Calibration of tissue densities in computerized tomography A hybrid calibration method uses a calibration phantom (exterior reference) scanned simultaneously with the patient, and one or more known tissues of the subject (interior reference) to create a hybrid calibration reference that improves the measurement of tissue de... | 11/06/2007 |
| 7288759 | Tissue-like phantoms The invention is based, in part, on the discovery that by combining certain components one can generate a tissue-like phantom that mimics any desired tissue, is simple and inexpensive to prepare, and is stable over many weeks or months. In addition, new multi-modal ... | 10/30/2007 |
| 7289654 | Automatic scoring in digital radiology, particularly in mammography A method and computer program and device for evaluation of the radiographic image quality of a phantom containing cells with two visualizable objects in which: the coordinates of each phantom cell are determined on each phantom image; for each phantom cell containin... | 10/30/2007 |
| 7284905 | X-ray radiator, x-ray device and computed tomography apparatus with focus position determining capability An x-ray radiator has a radiator housing from which x-ray radiation originating from a focus is emitted. A pre-diaphragm is disposed in the beam path of the x-ray radiation and has a diaphragm opening in or on the radiator housing. The pre-diaphragm is provided with... | 10/23/2007 |
| 7286639 | Focal spot sensing device and method in an imaging system A focal spot sensing device includes: a housing that resists x-ray beams; an opening disposed in a wall of the housing that allows an x-ray beam to enter the housing; and a sensor device disposed in the housing that interprets a position of the x-ray beam for calcul... | 10/23/2007 |
| 7286631 | Method and apparatus for tomosynthesis image quality control A method and apparatus for tomosynthesis image quality control for a tomosynthesis imaging system. The method and apparatus including: positioning a phantom having an edge of predetermined sharpness at a predetermined angle relative to an imaging plane of an x-ray d... | 10/23/2007 |
| 7281850 | Method and apparatus for aligning a fourth generation computed tomography system A method and apparatus for the alignment of a fourth generation Computed Tomography (CT) system is provided. The method includes receiving X-ray scan data from the CT system, and processing the received X-ray scan data to automatically generate alignment correction ... | 10/16/2007 |
| 7283604 | Method and system of CT data correction An adaptive CT data acquisition system and technique is presented whereby radiation emitted for CT data acquisition is dynamically controlled to limit exposure to those detectors of a CT detector assembly that may be particularly susceptible to saturation during a g... | 10/16/2007 |
| 7283605 | Methods and apparatus for scatter correction A method for reconstructing an image of an object includes scanning the object with a computed tomography (CT) system to obtain data, estimating a size of the object using the obtained data, using the estimated size of the object to perform scatter correction on the... | 10/16/2007 |
| 7280635 | Processes and apparatus for managing low kVp selection and dose reduction and providing increased contrast enhancement in non-destructive imaging Systems, processes and apparatus are described through which non-destructive imaging is achieved, with equivalent or increased contrast, in comparison to conventional approaches, and that facilitate reduced dosage of X-rays delivered to the object or patient being i... | 10/09/2007 |
| 7280686 | Computer-supported image reconstruction method for a three-dimensional subject A computer is supplied with at least three 2-D projections of a subject that are offset from one another by difference angles. A position in the projection surface and a respective surface data value per projection are allocated to the respective surface elements of... | 10/09/2007 |
| 7277594 | System and method for preparing an image corrected for the presence of a gravity induced distortion The present invention relates to an imaging system for obtaining an image correctable for the presence of a gravity induced image error. The imaging system includes an imager to obtain an image of an object and a position measurement device to obtain position data i... | 10/02/2007 |
| 7269243 | Method and apparatus for controlling electron beam motion based on calibration information Certain embodiments relate to a method for calibrating an imaging system having an array of detector elements arranged with respect to a reference position and having an energy source moving in a pattern to irradiate the array of detector elements. The method includ... | 09/11/2007 |
| 7269242 | X-ray CT apparatus An X-ray CT apparatus is capable of obtaining an image of arbitrary size for an arbitrary part of an object to be examined. The X-ray CT apparatus prepares two-dimensional data and three-dimensional data from a plurality of X-ray information obtained by driving an X... | 09/11/2007 |
| 7264397 | Method and x-ray system for determination of position of an x-ray source relative to an x-ray image detector In a method and x-ray system for determination of the relative position of an x-ray source relative to an x-ray image detector, a reference structure in a known position relative to the x-ray source is introduced into the beam path between the x-ray source and the x... | 09/04/2007 |
| 7266178 | Calibration source for X-ray detectors A method and device for calibrating the energy response of detectors of photons in the range from about 0.5 keV to at least 100 keV. The device makes use of the inherent property of a polarizable crystal such as a pyroelectric crystal to produce monoenergetic x-rays... | 09/04/2007 |
