摘要:
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.
摘要:
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.
摘要:
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 (3D) X-ray image.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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 (3D) X-ray image.
摘要:
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.
摘要:
A radiation signal detection apparatus includes a filter unit configured to allow penetration of a component of radiation that passed through a subject, the filter unit including one or more unit filters configured to allow penetration of only a component in a predetermined energy band of the radiation, and a sensor unit, including one or more first unit sensors configured to convert only the component of the radiation for which the penetration is allowed by the unit filters into a first electric signal, one or more second unit sensors configured to convert a component in all energy bands of the radiation into a second electric signal, and a radiation signal detector configured to detect a first radiation signal and a second radiation signal by respectively using the first electric signal of the first unit sensors and the second electric signal of the second unit sensors.
摘要:
Disclosed are a system and method counting photons. Photons are counted through a plurality of counters. Each of the counters generates a flag signal indicating the availability of each counter for an output of a photon detector. The generated flag signal is input into a control unit which controls a switching unit. The control unit allows a signal to be input into a counter, which is not in dead time, based on the received flag signal.