Patent application number | Description | Published |
20090020692 | SCATTERED RADIATION CORRECTION OF DETECTOR SIGNALS FOR PROJECTION-BASED IMAGING - A method of correcting detector signals, in particular for scatter noise correction with an projection-based imaging device, comprises the steps of irradiating an object ( | 01-22-2009 |
20090245456 | IMAGING METHOD AND DEVICE WITH DUAL READING SCANNER - An imaging method for imaging a region of investigation of an object comprises the steps of generating an energy input beam with an energy beam source, irradiating the region of investigation with energy input beam components of the energy input beam along a plurality of projection directions, the energy input beam components being formed with a frame mask being arranged between the energy input beam and the object and including frame mask windows, measuring first integrated attenuation values of the energy input beam components with an outer detector device arranged outside the frame mask, measuring second integrated attenuation values of the energy input beam components with a frame mask detector device being arranged on an inner surface of the frame mask, and reconstructing an image of the region of investigation based on the first and second integrated attenuation values. Furthermore, an imaging device for imaging a region of investigation of an object is described. | 10-01-2009 |
20090297009 | METHOD OF RECONSTRUCTING AN IMAGE FUNCTION FROM RADON DATA - A method of reconstructing an image function on the basis of a plurality of projection profiles corresponding to a plurality of projection directions through a region of investigation, each projection profile including a series of value positions, wherein measured projection values corresponding to projection lines parallel to the respective projection direction are assigned to respective value positions and a plurality of remaining value positions are empty, comprises the steps of (a) assigning first interpolation values to the empty value positions for constructing a plurality of interpolation profiles on the basis of the projection profiles, wherein the first interpolation values are obtained from a first interpolation within a group of measured projection values having the same value position in different projection profiles, and (b) determining the image function by applying a predetermined reconstruction algorithm on the interpolation profiles. | 12-03-2009 |
20090310738 | IMAGING APPARATUS AND IMAGING METHOD - Imaging apparatus, for analyzing an object, comprising: a radiation source for transmission of radiation through said object in a section plane of said object; a radiation detector for detecting said radiation in said section plane of said object after transmission through said object; and a masking device for masking out a part of said radiation, wherein said masked part of said radiation is movable in said section plane relative to said radiation detector during said analysis of said object. | 12-17-2009 |
20090316856 | Method and device for imaging tomography - An imaging method for imaging a region of investigation of an object, comprises the step of irradiating the region of investigation with at least one energy input beam along a plurality of projection directions, wherein the at least one energy input beam comprises a plurality of individual energy input beam components, wherein the energy input beam is shaped such that at least two of the energy input beam components have different cross-sections and groups of parallel energy input beam components being parallel to one of the projection directions provide a continuous irradiation of the region of investigation. Furthermore, a device for imaging the object is described. | 12-24-2009 |
20100092050 | METHOD OF PROCESSING A RADON DATA BASED IMAGE FUNCTION AND IMAGING METHOD - An image processing method for providing a digitized image as an approximation of an image function ƒ, wherein the digitized image comprises a plurality of pixels with a predetermined pixel size, comprises the steps of providing the image function ƒ from Radon data comprising a plurality of projection functions measured corresponding to a plurality of predetermined projection directions (ν), and determining pixel values from the image function, the pixel values representing the digitized image to be obtained, wherein the pixel values are determined in dependence on at least two image function values within the pixel size of the respective pixel. Furthermore, an imaging method and an imaging device using the image processing method are described. | 04-15-2010 |
20110222648 | SCANNER DEVICE AND METHOD FOR COMPUTED TOMOGRAPHY IMAGING - A scanner device for computed tomography imaging of an object, includes a measurement device including a source device arranged for irradiating the object with at least one beam and a detector device arranged for detecting radiation transmitted through the object, wherein the source device has a fixed position relative the detector device, and a carrier device accommodating the object in a position between the source device and the detector device, wherein the measurement device and the carrier device are capable of a scanning movement relative to each other, and the measurement device and the carrier device have a fixed spatial orientation during the scanning movement. Furthermore, a scanning method for computed tomography imaging of an object is described. | 09-15-2011 |
20110266453 | RECONSTRUCTING A TOMOGRAPHIC IMAGE WITH REDUCED ARTIFACTS - A method of reconstructing a tomographic image of a region of investigation with reduced artifacts, said method comprises the steps of (a) reconstructing a first partial image and a second partial image of the region of investigation from first and second projection profiles each of which including projection data collected at first and second different groups of parallel projection lines, resp., wherein the first and second projection profiles are provided such that streak aliasing artifacts in the first and second partial images have different spatial phases, and (b) generating the tomographic image of the region of investigation by superimposing the first and second partial images. Preferably, the first and second projection profiles are constructed such that streak aliasing artifacts in the first and second partial images have opposite spatial phases relative to each other. Furthermore, an imaging method and an imaging device for imaging a region of investigation in an object are described. | 11-03-2011 |
20120262502 | AUTOSTEREOSCOPIC DISPLAY - An autostereoscopic display includes a background illumination with a multiplicity of parallel light strip groups with in each case at least two parallel light strips, wherein the individual light strip groups are arranged next to one another with a first grid dimension, and a lens grid arranged before the background illumination and has a multiplicity of parallel lens strips, wherein the lens strips are arranged next to one another with a second grid dimension, as well as a light modulator arranged before the lens grid and displays image information. | 10-18-2012 |
20130039459 | TOMOGRAPHY APPARATUS AND TOMOGRAPHY METHOD - A tomography apparatus that generates images of an object includes a radiation source emitting a radiation beam, wherein the radiation beam rotates around the object and penetrates the object; a radiation detector rotating around the object opposite the radiation source so that the radiation detector detects the radiation beam after penetration of the object; a radiation mask surrounding the object that masks the radiation beam, wherein the radiation mask is arranged in a path of the radiation beam between the radiation source and the radiation detector and the radiation beam passes the radiation mask only once between the radiation source and the radiation detector. | 02-14-2013 |