Mr. Changhwan Kim Profile

Changhwan Kim

at Yonsei Cancer Center

SPIE Involvement:

Author

Publications (5)

Proceedings Article | 3 April 2024 Paper

An investigation of correlation between external surrogate signal and internal motion according to respiratory irregularity

Changhwan Kim, Jiwon Jang, Eunho Lee, Seyjoon Park, Soorim Han, Min Cheol Han, Chae-Seon Hong, Jin Sung Kim

Proceedings Volume 12925, 1292526 (2024) https://doi.org/10.1117/12.3006361

KEYWORDS: Phase measurement, Radiotherapy, Radiation oncology, Motion measurement, Imaging systems, Data modeling, Motion models, Motion analysis, Medicine, Data acquisition

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Proceedings Article | 15 February 2021 Poster + Presentation + Paper

A feasibility study of data redundancy based on-line geometric calibration without dedicated phantom on Varian OBI CBCT system

Changhwan Kim, Chiyoung Jeong, Min-jae Park, Byungchul Cho, Si Yeol Song, Sang-wook Lee, Jungwon Kwak

Proceedings Volume 11595, 115952H (2021) https://doi.org/10.1117/12.2581793

KEYWORDS: Calibration, Data centers, Computer simulations

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SPIE Journal Paper | 24 October 2016 Open Access

Sampling scheme optimization for diffuse optical tomography based on data and image space rankings

Sohail Sabir, Changhwan Kim, Sanghoon Cho, Duchang Heo, Kee Hyun Kim, Jong Chul Ye, Seungryong Cho

JBO, Vol. 21, Issue 10, 106004, (October 2016) https://doi.org/10.1117/12.10.1117/1.JBO.21.10.106004

KEYWORDS: Intelligence systems, Diffuse optical tomography, Sensors, Absorption, Scattering, Image resolution, Data modeling, Head, Brain, Inverse optics

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Proceedings Article | 25 March 2016 Paper

Scatter correction in CBCT with an offset detector through a deconvolution method using data consistency

Changhwan Kim, Miran Park, Hoyeon Lee, Seungryong Cho

Proceedings Volume 9783, 97832S (2016) https://doi.org/10.1117/12.2214933

KEYWORDS: Deconvolution, Data acquisition, Computer simulations, X-ray imaging, Scattering, Data corrections, Head, Image quality, Convolution, Medical imaging, Fluctuations and noise

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Proceedings Article | 6 March 2013 Paper

Motion detection in cone-beam computed tomography incorporating a geometric calibration approach

Rizza Pua, Boyeol Yoo, Chang Hwan Kim, Seungryong Cho

Proceedings Volume 8668, 86682T (2013) https://doi.org/10.1117/12.2007797

KEYWORDS: Calibration, Solids, Image processing, Image quality, Motion detection, Computed tomography, Image filtering, Image restoration, Reconstruction algorithms, Infrared imaging

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