Samsung Electronics Co., Ltd.

Sungkyunkwan University

Do-il Kim

Duhgoon Lee

Kyoung-Yong Lee

Toshihiro Rifu

Sang-min Lee

Kyung-Eun Byun

Jong-Jin Park

Sang-hun Jeon

Thanh Tien Nguyen

Min-kook Cho

Nae-eung Lee

Ji-hyun Bae

Sang-nam Nam

Quang Trung Tran

Chan-won Seo

Dong-uk Kang

Jung-heon Lee

A tomographic imaging apparatus includes an X-ray detector comprising a plurality of dual mode pixels and configured to detect radiation that has passed through an object, and at least one processor configured to obtain scan data from the X-ray detector, and control each pixel of the plurality of dual mode pixels to operate in one of a first mode and a second mode, wherein each pixel of the plurality of dual mode pixels includes a sensor configured to generate a scan signal by converting incident radiation into an electric signal, a first signal path circuit configured to transmit the scan signal in the first mode, a second signal path circuit configured to transmit the scan signal in the second mode, and a photon counter configured to count photons from the scan signal transmitted through one of the first and second signal path circuits.

Tomographic imaging apparatus, method of controlling the same, and computer program product

Provided is a tomography apparatus including: a data acquisitor configured to obtain a first image by using tomography data acquired as a first X-ray generator for generating X-rays having a first energy rotates around an object over a first angular range and obtain a second image by using tomography data acquired as a second X-ray generator for generating X-rays having a second energy rotates around the object over a second angular range; a controller configured to acquire motion information representing an amount of motion of the object over time by using the first and second images; and an image reconstructor configured to reconstruct a target image showing the object at a target time point by using the motion information.

Apparatus and method for reconstructing tomography images using motion information

A tomography apparatus includes a data obtainer configured to obtain first image data at a first point and second image data at a second point using tomography, the tomography being performed by irradiating an X-ray to an object; an image processor configured to perform noise reduction based on at least one from among the first image data and the second image data, and to obtain a first reference image corresponding to the first image data and a second reference image corresponding to the second image data using a result of the performed noise reduction; and an image reconstructor configured to reconstruct a target image representing the object based on the first reference image and the second reference image.

Tomography apparatus and method of reconstructing cross-sectional image

A pressure sensor and a pressure sensing method are provided. The pressure sensor includes a substrate; a sensor thin film transistor (TFT) disposed on the substrate and including a gate insulating layer, wherein the gate insulating layer includes an organic matrix in which piezoelectric inorganic nano-particles are dispersed; a power unit configured to apply an alternating current (AC) signal to a gate of the sensor TFT; and a pressure sensing unit configured to obtain a remnant polarization value based on a drain current which is generated in response to the AC signal and detected by the sensor TFT, and to sense a pressure based on the remnant polarization value.

Pressure sensor and pressure sensing method

A method of controlling an X-ray in a computed tomography (CT) apparatus includes: acquiring scout images of an object; setting an imaging region of the object in the acquired scout images; determining an outline of transverse axes lengths of the imaging region based on the transverse axes lengths of the imaging region; controlling X-rays emitted toward the object by adjusting a distance between elements of a transverse collimator of the CT apparatus according to the determined outline; and reconstructing a cross-sectional X-ray image of the object based on X-ray projection data generated by detecting the controlled X-rays.

Computed tomography apparatus and method of controlling X-ray by using the same

Growing community of inventors

Hwaseong-si, South Korea

Do-il Kim