Abstract: A method for reducing metal artifacts in computed tomography (CT) is disclosed. The method for reducing metal artifacts in CT includes: obtaining a sinogram reduced in size from an original sinogram; setting up a linear algebraic equation according to remaining data excluding data damaged by a metal based on the obtained sinogram; restoring a low-resolution image based on the set up linear algebraic equation; calculating a sinogram from the restored low-resolution image; restoring a sinogram by disposing the calculated sinogram data in the original sinogram and by utilizing the calculated sinogram data as pre-information; and restoring a final CT image from the restored sinogram. Through introduction of a novel metal artifact reduction (MAR) technique referred to as an algebraic correction technique (ACT) using an intermediate image of an attenuation coefficient of an outside of a metal area, an image closest to an original image can be obtained by minimizing metal artifacts in CT.

Abstract: A BC-mode image with an improved frame rate in an ultrasound system is formed. A transmit/receive unit forms first and second receive signals responsive to first and second control signals. An image processing unit is configured to form a B-mode image and a C-mode image based the first and second receive signals and to combine them to form a BC-mode image. The control signal generates a third control signal for a B-mode scan along scan lines, which are not within the color box to form third receive signals. The control unit repeatedly generates the second and third control signals. The image processing unit is further operable to form a B-mode image based on the third receive signals and the second signals.

Abstract: Disclosed is an ultrasonic diagnostic apparatus.

Abstract: Disclosed is a method for generating a 3D image of a left ventricle of the heart. The method includes: acquiring, by an image processor, a 2D left ventricle image; extracting, by the image processor, left ventricle boundary coordinates from the 2D image; calculating, by a controller, a position of the left ventricle in 3D space through transformation of the extracted left ventricle boundary coordinates; and generating, by the controller, a 3D left ventricle image based on the calculated position of the left ventricle in 3D space.

Abstract: Disclosed is a structure for operating a unified radio application for a software defined radio terminal. The structure for operating a unified radio application according to the present invention can be classified into two types depending on whether a configuration code (configcode) of the radio application is constituted by an executable code or implemented in an intermediate representation (IR) code. With the structure for operating a unified radio application according to the present invention, it is possible to develop and distribute a radio application capable of operating on all radio platforms.

Abstract: According to the present invention, a software-defined radio terminal apparatus is a software-defined radio terminal apparatus which is adaptively constituted based on radio applications, and may comprise a storage unit, a microprocessor, and a baseband accelerator. The microprocessor reads, from the storage unit, a code, including a radio controller layer and a baseband driver layer, and executes the code, wherein the radio controller layer delivers a control command for controlling the baseband accelerator and information to be transmitted, from an upper layer to the baseband accelerator, and delivers the information received from the baseband accelerator to the upper layer, wherein the baseband driver layer provides interface between the radio controller layer and the baseband accelerator.

Abstract: A cardiovascular OCT image making method which reduces artifacts includes the steps of: inputting a cardiovascular OCT image; converting coordinates of the inputted OCT image into two-dimensional polar coordinates (? and r); generating a brightness control function of the A-line direction based on the blood wall relative to each ? value; forming a brightness image in the A-line direction based on the blood wall depending on the brightness control function; and forming an OCT image of which brightness is controlled by the brightness image by applying the brightness image formed on the inputted OCT image.

Abstract: An apparatus and method for computed tomography image processing is provided. The apparatus includes: an X-ray detection unit that detects an X-ray beam having passed through a subject and outputs an energy value thereof; a line integral calculation unit that calculates line integral values of attenuation coefficients representing attenuation of the energy value of the X-ray beam having passed through the subject and been detected, based on the energy value; an image processing unit that reconstructs a tomogram based on the line integral values; and an image output unit that outputs the tomogram. The apparatus and method for computed tomography image processing can calculate line integral values of attenuation coefficients constituting an integrand of an X-ray projection function using the mean value theorem for integrals in order to restore an image of a subject from an X-ray beam detected in computed tomography image processing.

Abstract: An apparatus and method for processing an echocardiogram using the Navier-Stokes equation is provided. The apparatus includes an ultrasonic sensor that transmits ultrasonic waves to the heart in three different directions and receives echoes thereof; an image processor that constructs first to third echocardiograms captured from the three different directions, respectively, based on the received echoes of the ultrasonic waves; a three-dimensional model construction unit that constructs a three-dimensional model of a left ventricle of the heart based on the first to third echocardiograms; and a blood flow vector calculation unit that calculates blood flow vectors within the left ventricle by applying the three-dimensional model of the left ventricle to boundary conditions in the Navier-Stokes equation.