Patent application number | Description | Published |
20110164797 | Method and system of processing multi-energy x-ray images - Provided is a method and system of processing a multi-energy X-ray image. Through the method and system, a plurality of target images may be acquired using an X-ray detector enabling an energy separation to be performed in a predetermined time interval, with respect to a target where a contrast agent is applied, and a signal processing may be performed on the acquired target images, thereby detecting and reading benign/malignant lesions or masses. | 07-07-2011 |
20110255654 | System and method processing images in multi-energy X-ray system - An image processing system and method are provided to adaptively discriminate hard tissues and soft tissues of a target in a multi-energy X-ray system. The image processing system and method may minimize a decrease in a dynamic range (DR) for soft tissues affected by hard tissues in a target where the soft tissues and hard tissues are mixed. | 10-20-2011 |
20120014584 | METHOD AND APPARATUS OF PROCESSING IMAGE AND MEDICAL IMAGE SYSTEM EMPLOYING THE APPARATUS - A method of processing an image is provided. The method includes generating a calibration model by learning an intensity-target data set obtained from a parameter of a test subject; and estimating a target. The estimating includes applying the calibration model to a parameter of an input subject and calibrating the parameter of the input subject. | 01-19-2012 |
20120027281 | METHOD AND APPARATUS FOR PROCESSING IMAGE, AND MEDICAL IMAGE SYSTEM EMPLOYING THE APPARATUS - A method of processing an image is provided. The method includes generating a first intermediate reconstructed image by applying a first iterated reconstruction algorithm to a tomographic image of a predetermined subject; generating a second intermediate reconstructed image by applying a second iterated reconstruction algorithm to a difference image between the first intermediate reconstructed image and the tomographic image; and generating an ultimately reconstructed image by composing the first and second intermediate reconstructed images. | 02-02-2012 |
20120057770 | METHOD AND APPARATUS FOR RECONSTRUCTING IMAGE AND MEDICAL IMAGE SYSTEM EMPLOYING THE METHOD - A method and apparatus for reconstructing an image and a medical image system are provided. An image reconstruction processing method may include acquiring an initial value with respect to a tomographic image of an object to be inspected, initializing an auxiliary variable, acquiring one or both of a weighted value and an error value, based on a measured value, transforming a measured image signal, updating the auxiliary variable using a transform coefficient used to transform the measured image signal, and updating the measured value using the updated auxiliary variable, and one or both of the acquired weighted value and the error value. | 03-08-2012 |
20120321167 | METHOD AND SYSTEM FOR PROVIDING STEREOSCOPIC X-RAY IMAGE - A method of providing a stereoscopic X-ray image is provided. The method includes acquiring X-ray images captured at respective rotation angles with respect to a part of a patient to be examined while rotating around the part to be examined, and in response to information regarding a viewpoint with respect to the part to be examined being input, using X-ray images at respective rotation angles corresponding to the viewpoint from among the acquired X-ray images to generate a three-dimensional ( | 12-20-2012 |
20130022165 | X-RAY IMAGING APPARATUS AND METHOD - An X-ray imaging apparatus and method is provided. An X-ray imaging apparatus includes an X-ray radiation unit configured to radiate a first X-ray and a second X-ray onto a target along a predetermined path, an X-ray detection unit configured to detect the radiated first X-ray and the second X-ray that have passed through the target, and an image data generation unit configured to generate cross-section data that respectively corresponds to the detected first X-ray and the detected second X-ray and represents a predetermined cross-sectional layer of the target. The first X-ray is radiated at a location on the predetermined path that is different from a location on the predetermined path at which the second X-ray is radiated, the first X-ray including X-ray spectra that are different from X-ray spectra of the second X-ray. | 01-24-2013 |
20130148776 | METHOD AND APPARATUS FOR X-RAY SCATTERING ESTIMATION AND RECONSTRUCTION IN DIGITAL TOMOSYNTHESIS SYSTEM - A method and apparatus for X-ray scattering estimation and reconstruction in a digital tomosynthesis system are provided. The apparatus includes a receiver which receives, through a wired or wireless network, X-ray penetration data generated by measuring an object, and a graphics processing unit (GPU) which acquires, from the received X-ray penetration data, a reconstructed image in which scattering is corrected. | 06-13-2013 |
20130177213 | APPARATUS AND METHOD FOR VIRTUAL VIEW GENERATION ON MULTI-VIEW IMAGE RECONSTRUCTION SYSTEM - Provided is an apparatus and method for generating a virtual view in an image reconstruction system which uses multiple views. In the image reconstruction system which uses multiple views, the virtual view generating apparatus may receive original view projection images that are generated by emitting X rays toward an object via original views, three-dimensionally reconstruct the object by using the original view projection images, generate original view reprojection images by virtually emitting X-rays toward the reconstructed 3D object via the original views, estimate a motion of the reconstructed 3D object with respect to at least two of the original view reprojection images using a block-based motion estimation scheme, and generate an intermediate view projection image with respect to the at least two of the original view reprojection images by using information relating to the estimated motion. | 07-11-2013 |
20130182927 | METHOD OF RECONSTRUCTING TOMOGRAMS FROM POLYCHROMATIC X-RAY TRANSMISSION IMAGE AND IMAGE PROCESSING APPARATUS USING THE SAME - A method of reconstructing tomograms from a polychromatic X-ray transmission image and an image processing apparatus using the same. An image of a target is reconstructed in consideration of a fact that an X-ray has a polychromatic X-ray spectrum and the target is dependent upon energy of the X-ray transmitted through the target, and thus an image without any beam hardening artifacts may be generated. In addition, measurement data for X-rays with respect to all wavelengths is used to reconstruct an image, thereby reconstructing an accurate image. | 07-18-2013 |
20130195241 | IMAGE RECONSTRUCTION SYSTEM, APPARATUS, AND METHOD EMPLOYING NON-SEQUENTIAL SCANNING SCHEME USING REAL-TIME FEEDBACK - An image reconstruction system, apparatus, and method employing a non-sequential scanning scheme using real-time feedback are provided. A projection information generating unit is configured to generate at least one piece of projection information by the X-ray irradiated to the object in the at least one viewpoint. A projection information comparing unit is configured to compare predicted intermediate projection information with measured intermediate projection information from the generated projection information. The predicted intermediate projection information is predicted from pieces of projection information generated from different viewpoints, and the measured intermediate projection information is measured in an intermediate viewpoint corresponding to the predicted intermediate projection information. A determining unit is configured to determine whether to irradiate the X-ray to the object in an additional viewpoint. An image reconstructing unit is configured to reconstruct the generated projection information, and to acquire an image representing the object. | 08-01-2013 |
20130294568 | METHOD OF RECONSTRUCTING IMAGE AND APPARATUS AND TOMOGRAPHY APPARATUS FOR PERFORMING THE SAME - A method of reconstructing a tomography image of an object from a plurality of projection images generated by scanning the object in a plurality of projection directions includes: determining whether a truncated portion of the object exists in the plurality of projection images; reconstructing a first reconstruction image; calculating projection data for the first reconstruction image; and reconstructing a tomography image of the object by using the calculated projection data. | 11-07-2013 |
20130336566 | METHOD AND APPARATUS FOR RECONSTRUCTING IMAGE AND MEDICAL IMAGE SYSTEM EMPLOYING THE METHOD - A method and apparatus for reconstructing an image and a medical image system are provided. An image reconstruction processing method may include acquiring an initial value with respect to a tomographic image of an object to be inspected, initializing an auxiliary variable, acquiring one or both of a weighted value and an error value, based on a measured value, transforming a measured image signal, updating the auxiliary variable using a transform coefficient used to transform the measured image signal, and updating the measured value using the updated auxiliary variable, and one or both of the acquired weighted value and the error value. | 12-19-2013 |
20130343510 | METHOD OF RECONSTRUCTING IMAGE FOR POLYCHROMATIC X-RAY TOMOGRAPHY - Disclosed herein is a method for reconstructing an X-ray image, including selecting an initial value of a reconstruction value of an internal tissue of a target object, inserting the reconstruction value into a first relationship function to calculate simulation data of measurement data which is detected from X-rays which have passed through the target object, inserting the detected measurement data and the calculated simulation data into a first expression and a second expression for respectively determining a first constant and second constant as coefficients of a second relationship function of a relationship between the measurement data and the simulation data, in order to calculate the first constant and the second constant, and inserting the first constant and the second constant into a third relationship function which relates to the first constant and second constant and the reconstruction value in order to update the reconstruction value. | 12-26-2013 |
20140072100 | METHOD AND APPARATUS FOR FORMING X-RAY MAMMOGRAM - An X-ray imaging method and apparatus are provided for forming an X-ray image having reduced noise and showing a clear boundary of a lesion region. The X-ray imaging method includes performing a first main shot which irradiates an object in a compressed state by using X-rays at least once to obtain a single two-dimensional image, performing a second main shot which irradiates the object by using X-rays at different positions to obtain a plurality of two-dimensional images, and forming a two-dimensional final image by removing a lesion region having a unclear boundary from each of the plurality of two-dimensional images and substituting a lesion region of the single two-dimensional image into an area which corresponds to the removed lesion region. | 03-13-2014 |
20140112434 | X-RAY GENERATION MODULE, X-RAY IMAGING APPARATUS, AND X-RAY IMAGING METHOD - Disclosed is an X-ray imaging apparatus, which includes a plurality of X-ray generation modules configured to emit X-rays to a subject, the X-ray generation modules being configured to move independently of one another, an X-ray detector configured to detect a plurality of X-rays emitted from the plurality of X-ray generation modules and which have passed through the subject, and an image processor configured to acquire a plurality of X-ray images from the plurality of detected X-rays. | 04-24-2014 |
20140112435 | METHOD AND APPARATUS FOR PROVIDING THREE-DIMENSIONAL (3D) IMAGE - Provided is a method and apparatus for providing a three-dimensional (3D) image. A plurality of first projection images may be created by detecting X-rays which are emitted toward an object at different angles. A plurality of second projection images with respect to a partial volume of the object may be created by applying a forward projection and interpolation to at least one of the plurality of first projection images. A left image and a right image may be selected from among the plurality of second projection images, and the selected left image and right image may be displayed for a user as a 3D projection image. | 04-24-2014 |
20140133626 | X-RAY IMAGING APPARATUS AND X-RAY IMAGING METHOD - The X-ray imaging method includes setting imaging conditions according to characteristics of an object and performing X-ray imaging of the object based on the set imaging conditions. The imaging conditions include at least one of an imaging angle, a number of imaging operations, and an imaging position. | 05-15-2014 |
20140185738 | X-RAY IMAGING APPARATUS AND X-RAY IMAGE PROCESSING METHOD - Disclosed herein is an X-ray imaging apparatus. The X-ray imaging apparatus includes at least one X-ray emitter which is configured to irradiate an object with X-rays at a plurality of X-ray emission positions, an X-ray detector which is configured to detect X-rays which are emitted by the X-ray emitter and to convert the detected X-rays into an electric signal, and an image processor which is configured to acquire a plurality of original X-ray images which respectively correspond to the X-ray emission positions from the generated electric signal and to estimate a virtual X-ray image which is acquirable at an X-ray emission position located between at least two of the plurality of X-ray emission positions, based on at least two of the original X-ray images. | 07-03-2014 |
20140185748 | X-RAY IMAGING APPARATUS, X-RAY DETECTION DEVICE, AND X-RAY IMAGE GENERATION METHOD - An X-ray imaging apparatus includes an X-ray emitter that emits X-rays to an object at a plurality of positions; a detector that detects X-rays having passed through the object and converts the detected X-rays into electric signals; and an image processor that is configured to generate X-ray images at the plurality of positions by reading out the electric signals, acquire volume data of the object using the X-ray images, and reproject the acquired volume data by using different bands of energy spectrums to acquire reconstructed reprojection images of different energy bands. | 07-03-2014 |
20140185749 | X-RAY IMAGING APPARATUS, X-RAY IMAGE GENERATION METHOD, AND 3D IMAGING APPARATUS - The X-ray imaging apparatus includes an X-ray source that emits X-rays to an object at different original-view positions, an X-ray detector that acquires original-view images by detecting X-rays having passed through the object, and an image controller that reconstructs a 3D volume image representation of the object from the original-view images and generates close-view images by virtually emitting X-rays to the 3D volume image representation of the object at a shorter distance than a distance between the X-ray source and the object. | 07-03-2014 |