Electronics and Telecommunications Research Institute

Sooyeul Lee

Seunghwan Kim

Ji Wook Jeong

Seung-Hoon Chae

Jang Hwan Choi

Seon Hee Park

Jeong Won Lee

Hyeon-Bong Pyo

Yoon Seon Song

Moon Youn Jung

Chang-Geun Ahn

Byung Gyu Chae

Sung Woong Shin

Hyo Bong Hong

Done Sik Yoo

Jinsun Kim

Ji-Wook Jeong

Donghoon Yu

Jeongwon Lee

Sangkyung Lee

The apparatus for an X-ray data generation according to an embodiment of the inventive concept includes a processor that receives 3D data to generate output data and a buffer, and the processor includes an extraction unit that extracts raw object data from the 3D data and projects the raw object data onto a 2D plane to generate first object data, an augmentation unit that performs data augmentation on the first object data to generate second object data, a composition unit that synthesizes the second object data and background data to generate composite data, and a post-processing unit that performs post-processing on the composite data to generate the output data, and the buffer stores a plurality of parameters related to generation of the first object data, the second object data, the composite data, and the output data.

Apparatus and method for x-ray data generation

Provided is an operating method of an imaging system, the operating method including illuminating, by a light illuminator, light onto a subject from a light source, acquiring, by an optical detector, a two-dimensional projection image on the subject, generating a first projection matrix between three-dimensional coordinates of the subject and two-dimensional coordinates of the projection image, generating a three-dimensional first volume image on the subject on the basis of the first projection matrix and the projection image, generating a two-dimensional digitally reconstructed radiograph (DRR) on the subject from the first volume image, matching the projection image and the DRR, and updating the first projection matrix on the basis of a matched result to generate a second projection matrix, and generating a three-dimensional second volume image on the subject on the basis of the second projection matrix and the projection image.

Image generating apparatus, imaging system including image generating apparatus and operating method of imaging system

Provided is a calibration device for three-dimensional imaging equipment including a first bead group including first beads arranged in a first pattern, and a second bead group including second beads arranged in a second pattern different from the first pattern, wherein the first and second bead groups have different cross ratios or different segment ratios from each other, the first beads are arranged in a line, and the second beads are arranged in a line.

Calibration device and method for calibrating three-dimensional imaging equipment

Provided are an image system and an image reconstruction method using the same. The image system includes an image scan device, a spectrum signal generation device, and an image recovery device. The image scan device generates a magnetic particle detection signal on the basis of an induced magnetic field induced from a magnetic particle. The spectrum signal generation device transforms the magnetic particle detection signal to a detection spectrum signal on the basis of a two-dimensional Fourier transform kernel. The image recovery device generates an image signal on the basis of the detection spectrum signal and a system matrix. According to the inventive concept, a data amount for image reconstruction may be ensured.

Imaging system and image reconstruction method using the same

Provided is a therapy method using an ion beam, including injecting the ion beam to a target spot in a body of an examinee, measuring a Bragg peak spot of the ion beam injected into the body of the examinee, and adjusting the target spot using the measured Bragg peak spot, wherein the measuring of the Bragg peak spot comprises measuring a spot of a microbubble generated inside the body of the examinee.

Ion therapy device and therapy method using ion beam

Provided is an operating method of a medical imaging device. The method includes receiving a 3D medical image, generating a 2D medical image from the 3D medical image based in a plate interpolation, and displaying the 2D medical image by using plate interpolation based weight information and interest region information.

Method and device for generating 2D medical image based on plate interpolation

Provided are a computed tomography device and a computed tomography method. The computed tomography device includes a gantry and an image processing processor. The gantry includes a light source for irradiating light, a detector disposed facing the light source and for receiving the light, and an arm for supporting the light source and the detector. The image processing processor receives a two-dimensional detection image for a subject from the detector. The image processing processor converts the received two-dimensional detection image to two-dimensional detection image data. The image processing processor generates three-dimensional reconstruction image data from the two-dimensional detection image data. A computed tomography device and a computed tomography method according to the inventive concept correct an error of a gantry movement path to provide a stable three-dimensional reconstruction image.

Computed tomography device and computed tomography image correction method using the same

A digital breast tomosynthesis system includes an object fixing unit including first and second fixing plates, a first vibration plate moved in linkage with the first fixing plate and a second vibration plate moved in linkage with the second fixing plate, and configured to fix the object between the first and second vibration plates, an X-ray generator configured to project X-ray toward the object; an X-ray detector configured to detect the X-ray, a vibration generating device configured to vibrate the first and second vibration plates at a set frequency, and a vibration control device configured to control the vibration generating device by generating a vibration signal corresponding to the set frequency, wherein the X-ray generator projects the X-ray at specific time intervals on the basis of the set frequency.

Assist device for elastography and digital breast tomosynthesis system and method using the same for breast lesion diagnosis

Provided is a canal type mini-apparatus insertable in an ear for diagnosing a disease. The canal type mini-apparatus includes a canal body and a protrusion body. The canal body is insertable in an ear and includes a bio-data detection unit at an end thereof. The bio-data detection unit is configured to detect biological data from an inside of the ear for diagnosing a disease. The protrusion body is disposed at the other end of the canal body and including a data transceiving unit. The data transceiving unit is configured to control the bio-data detection unit and transmit/receive a signal to/from an analyzing device. When the canal type mini-apparatus is inserted in the ear, at least a portion of the protrusion body protrudes outward from the ear.

Canal type mini-apparatuses insertable in ears for diagnosing and curing diseases

Provided is a device and method for calculating a lesion feature. The device includes a border discriminator configured to discriminate a border of a lesion on an image of an image signal, a border sharpness normalizer configured to normalize a border sharpness based on the border determined by the border discriminator and output the normalized border sharpness as a feature, and a vector generator configured to generate a vector having the feature outputted from the border discriminator as a component. Therefore, by using the lesion feature calculating device and method according to embodiments of the present invention, types of lesions on ultrasonic images are classified based on the borders of the lesions.

Lesion feature calculating device and method utilizing border sharpness

Provided are a phantom for standardizing ultrasonograph and a method of obtaining an ultrasonographic image using the phantom, and more particularly, a phantom for measuring fat content in a target organ as a gray level distribution using an ultrasonographic image and assessing the accuracy of ultrasonograph and a method and apparatus for obtaining a standardized ultrasonographic image using the phantom. Since the photographing characteristics of the ultrasonograph are readjusted using a phantom which comprises a phantom part including a strong ultrasonic echo material and a weak ultrasonic echo material, which create a gray level distribution in ultrasonography, in a specific composition and ratio, and assesses the accuracy of the ultrasonograph by comparing the composition and ratio of the materials with a composition and ratio of a gray level in an ultrasonographic image, the characteristics of the ultrasonograph can be standardized and fat content in a body part can be quantitatively measured without being affected by photographing techniques and conditions.

Phantom for standardizing ultrasonograph and method of obtaining standardized ultrasonographic image using the phantom

A method and a device for measuring a pulmonary nodule volume using a dual-energy subtraction image are provided. The method includes: (a) obtaining a dual-energy subtraction image of a chest; (b) setting a specific region including a pulmonary nodule region in the obtained dual-energy subtraction image; (c) interpolating a gray level trend of a region surrounding the pulmonary nodule region into the pulmonary nodule region using a fitting function; and (d) measuring the pulmonary nodule volume by subtracting the interpolation result from the gray level data of the pulmonary nodule region. Accordingly, when it is desired to measure the pulmonary nodule volume using the dual-energy subtraction image, information on the thickness of the pulmonary nodule is obtained from the characteristic of the dual-energy subtraction image, and the pulmonary nodule volume is accurately measured by correcting errors at the border of the pulmonary nodule region using the fitting function.

Method and device for measuring pulmonary nodule volume using dual-energy substraction image

A method for measuring a bone mineral density, by use of an x-ray image, in a bone mineral density measuring system, includes the steps of: (a) obtaining an X-ray image of bone; (b) setting a region of interest on the obtained X-ray image of bone; (c) calculating a background trend due to soft tissues, at a bone portion within the selected region of interest; and (d) calculating an index of the bone mineral density by removing the background trend due to the soft tissues, at the bone portion within the selected region of interest.

Method for measuring bone mineral density by using X-ray image

A method for evaluating a structural strength of cancellous bone and a computer readable media incorporating a program for implementing the method therein. The method includes the steps of acquiring an x-ray image and defining a region of interest on the acquired x-ray image; extracting a bone trabecular pattern in the defined region of interest; and setting an index of the structural strength of the cancellous bone using an area density of the extracted bone trabecular pattern.

Method for evaluating structural strength of cancellous bone using X-ray image

A method for calibrating a trabecular index with a sawtooth-shaped rack which corrects an error in the trabecular index due to the characteristics of an image input device or radiographic conditions of an x-ray image when a bone mineral density is measured by setting up the trabecular index with trabecular patterns of a simple x-ray image. The present invention includes a method for calibrating the trabecular index with a sawtooth-shaped rack, wherein bone mineral density is measured with the trabecular index calculated from an x-ray image and an error in the trabecular index is calibrated by a method of calibrating the trabecular index, the method includes the following steps. A first step is preparing an x-ray image by radiographing a bone and a sawtooth-shaped rack together. A second step is attaining trabecular indexes from the x-ray image of the rack and the bone. And, a third step is calibrating the trabecular index of the bone with the trabecular index of the rack.

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Daejeon, South Korea

Sooyeul Lee