Measurements of the noise power spectrum for digital x-ray imaging devices
DS Kim - Physics in Medicine & Biology, 2024 - iopscience.iop.org
Objective. The noise characteristics of digital x-ray imaging devices are determined by
contributions such as photon noise, electronic noise, and fixed pattern noise, and can be …
contributions such as photon noise, electronic noise, and fixed pattern noise, and can be …
Nonlinear lag correction based on the autoregressive model for dynamic flat-panel detectors
Lag signal problems occur in acquiring X-ray image sequences from dynamic flat-panel
detectors due to amorphous pixel photodiodes and incomplete readouts. Based on a linear …
detectors due to amorphous pixel photodiodes and incomplete readouts. Based on a linear …
Wind power scenario synthesis with smoothing effect through spectral decomposition and its application to flexible resource adequacy
B Oh, S Kim, D Lee - IEEE Transactions on Sustainable Energy, 2022 - ieeexplore.ieee.org
We synthesize future scenarios of total wind power generation (WPG) of future wind farms by
considering the smoothing effect, in which mid-term variability fades out, but periodicity and …
considering the smoothing effect, in which mid-term variability fades out, but periodicity and …
Measurement of the lag correction factor in low-dose fluoroscopic imaging
Lag signals occur at images sequentially acquired from a flat-panel (FP) dynamic detector in
fluoroscopic imaging due to charge trapping in photodiodes and incomplete readouts. This …
fluoroscopic imaging due to charge trapping in photodiodes and incomplete readouts. This …
Convex combination of images from dual-layer detectors for high detective quantum efficiencies
DS Kim - IEEE Transactions on Biomedical Engineering, 2022 - ieeexplore.ieee.org
Objective: In this paper, a novel dual-layer detector is considered to acquire X-ray images of
high signal-to-noise ratio (SNR) as well as detective quantum efficiency (DQE) especially for …
high signal-to-noise ratio (SNR) as well as detective quantum efficiency (DQE) especially for …
Linear lag models and measurements of the lag correction factors
For fluoroscopic imaging, flat-panel dynamic detectors can acquire X-ray image sequences
with frame rates higher than 300 frames per second. However, the sequentially acquired …
with frame rates higher than 300 frames per second. However, the sequentially acquired …
Conditional covariances for the signal lag measurements in fluoroscopic imaging
In fluoroscopic imaging, we can acquire X-ray image sequences using a flat-panel dynamic
detector. However, lag signals from previous frames are added to the subsequently acquired …
detector. However, lag signals from previous frames are added to the subsequently acquired …
Lag correction factor measurement based on the temporal power spectral density and its size
In fluoroscopy imaging, flat-panel dynamic detectors can be employed to acquire X-ray
image sequencies. Due to trapped charges in photodiodes and incomplete their readouts …
image sequencies. Due to trapped charges in photodiodes and incomplete their readouts …
[PDF][PDF] 시간적이득이불균일한상태에서전력스펙트럼밀도를사용한지연보정계수측정
이은애， 김동식 - 전자공학회논문지, 2022 - researchgate.net
요 약평판형 다이나믹 디텍터를 사용하여 X 선 영상열을 획득할 수 있는데, 디텍터를 구성하는
포토다이오드 화소의 비결정질 구조로 인하여 이전 영상에서 발생한 전하가 그 다음 영상에 …
포토다이오드 화소의 비결정질 구조로 인하여 이전 영상에서 발생한 전하가 그 다음 영상에 …
[PDF][PDF] 평판형다이나믹디텍터를위한상관도기반지연보정계수측정
이은애， 김동식 - 전자공학회논문지, 2022 - researchgate.net
요 약 Fluoroscopic 이미징에서 평판형 다이나믹 디텍터를 사용하여 X 선 동영상을 획득할 수
있다. 평판형 디텍터의 경우 이전 영상에서 발생한 전하가 그 다음 영상에 영향을 미쳐서 …
있다. 평판형 디텍터의 경우 이전 영상에서 발생한 전하가 그 다음 영상에 영향을 미쳐서 …