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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 14 of 14  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
IMQ 2022-12-16
14:30
Chiba Nishi-Chiba Campus, Chiba Univ. New Method for Evaluating Effective Contrast Resolution of CT images
Kengo Igarashi, Keisuke Fujii, Chiyo Kawaura, Shigeru Matsushima, Kuniharu Imai (Nagoya Univ.) IMQ2022-15
 [more] IMQ2022-15
pp.1-6
IMQ, HIP 2022-07-08
14:50
Hokkaido Satellite Campus, Sapporo City University Derivation of Blur Function of CT Image on the Basis of Stochastic Differential Equation
Kuniharu Imai (Nagoya Univ), Yuki Yamamoto (Fujita Health Univ), Kengo Igarashi, Keisuke Fujii, Chiyo Kawaura, Shigeru Matsushima (Nagoya Univ) IMQ2022-8 HIP2022-39
Recently, various algorisms for reducing image noise on CT images have been developed and made it possible to depict a t... [more] IMQ2022-8 HIP2022-39
pp.21-26
IMQ, IE, MVE, CQ
(Joint) [detail]
2019-03-15
10:40
Kagoshima Kagoshima University Image quality evaluation of low contrast CT images using moving average filters
Keisuke Fujii (Nagoya Univ./NCCHE), Kuniharu Imai, Mitsuru Ikeda, Chiyo Yamauchi-Kawaura (Nagoya Univ.), Keiichi Nomura, Yoshihisa Muramatsu, Hiroyuki Ota (NCCHE) IMQ2018-60 IE2018-144 MVE2018-91
Image contrast and noise are one of important indices for evaluating image quality of low contrast CT images such as abd... [more] IMQ2018-60 IE2018-144 MVE2018-91
pp.209-212
IMQ 2015-09-04
13:30
Kagoshima   Quantitative Evaluation of Stochastic Resonance Using Similarity
Kengo Igarashi, Yuki Yamamoto, Keisuke Naito, Keisuke Fujii, Chiyo Kawaura (Nagoya Univ.), Masaki Mori (Nagoya Univ. Hospital), Mitsuru Ikeda, Kuniharu Imai (Nagoya Univ.) IMQ2015-12
Stochastic resonance is a phenomenon that occurs in a threshold measurement system. It is well known that stochastic res... [more] IMQ2015-12
pp.1-4
IMQ 2014-12-20
14:30
Aichi Nagoya University Normality of noise distribution in X-ray computed tomography images
Yuma Ohashi, Mitsuru Ikeda, Taketo Kimura, Kazuki Tsukamoto, Kuniharu Imai, Chiyo Kawaura, Keisuke Fujii (Nagoya Univ.) IMQ2014-18
When confined to quantum noise, the noise in X-ray Computed Tomography (CT) images is according to a Poisson distributio... [more] IMQ2014-18
pp.11-16
IMQ 2014-12-20
14:55
Aichi Nagoya University Improvement of Image Sharpness on CT Images Using Stochastic Resonance
Yuki Yamamoto, Keisuke Naito, Yukihiro Enchi, Keisuke Fujii, Chiyo Kawaura (Nagoya Univ.), Masaki Mori (Nagoya Univ. Hospital), Mitsuru Ikeda, Kuniharu Imai (Nagoya Univ.) IMQ2014-19
Recently, the phenomenon called Stochastic Resonance was found in a nonlinear system, and has been applied for many rese... [more] IMQ2014-19
pp.17-22
IMQ 2014-12-20
15:20
Aichi Nagoya University Kinetic Analysis of Iodinated Contrast Media on the basis of Fractal of Cerebral Arteries
Keisuke Naito, Yuki Yamamoto, Keisuke Fujii, Chiyo Kawaura (Nagoya Univ.), Takuya Nishimoto, Masaki Mori (Nagoya Univ. Hosp.), Mitsuru Ikeda, Kuniharu Imai (Nagoya Univ.) IMQ2014-20
It is important to understand the efficacy of iodinated contrast media in digital subtraction angiography. However, the ... [more] IMQ2014-20
pp.23-28
IMQ 2013-10-18
14:20
Chiba Chiba Univ. Improvement of Contrast Resolution Using Stochastic Resonance
Yuki Yamamoto, Keisuke Fujii, Ikuko Takase (Nagoya Univ.), Yukihiro Enchi (Osaka Univ. Hospital), Chiyo Kawaura (Nagoya Univ.), Masaki Mori (Nagoya Univ. Hospital), Mitsuru Ikeda, Kuniharu Imai (Nagoya Univ.) IMQ2013-13
Recently, phenomenon called Stochastic Resonance was found in a nonlinear system, and has been applied for many research... [more] IMQ2013-13
pp.7-10
IMQ 2012-11-23
13:50
Chiba Chiba University Evaluation of Image Quality of Brain CT Angiography Reconstructed Using Adaptive Statistical Iterative Reconstruction Techniques
Ikuko Takase (Nagoya Univ.), Yukihiro Enchi (Osaka Univ. Hospital), Chiyo Kawaura (Nagoya Univ.), Masaki Mori (Nagoya Univ. Hospital), Mitsuru Ikeda, Kuniharu Imai (Nagoya Univ.) IMQ2012-23
Recently, image reconstruction method called Adaptive Iterative Statistical Reconstruction (ASIR) has been developed. Th... [more] IMQ2012-23
pp.5-10
IMQ 2012-11-23
14:15
Chiba Chiba University Quantitative Assessment of Artery Contours in Cerebral 3D-CT Angiography
Yukihiro Enchi (Osaka Univ. Hosp.), Kuniharu Imai, Ikuko Takase, Chiyo Kawaura, Mitsuru Ikeda (Nagoya Univ.), Masaki Mori (Nagoya Univ. Hosp.) IMQ2012-24
Currently, 3-dimensional computed tomographic angiography (3D-CTA) is an essential tool for detection of cerebral aneury... [more] IMQ2012-24
pp.11-16
MI 2009-01-21
09:50
Overseas National Taiwan University [Poster Presentation] New Methods for Evaluating Streak Artifacts and Image Noises in Non-uniform Region on CT Image Separately
Kuniharu Imai, Mitsuru Ikeda (Nagoya Univ.), Yukihiro Enchi (Osaka Univ. Hosp.), Takanaga Niimi (Nagoya Univ.) MI2008-184
Image noises in CT images are one of the limiting factors for observer performance, and can be categorized into the foll... [more] MI2008-184
pp.565-570
MI 2007-01-26
15:20
Overseas the Cheju National Univ. Evaluation of Anatomical Noise Using Fractal-Feature-Distance
Kuniharu Imai, Mitsuru Ikeda (Nagoya Univ.), Yukihiro Enchi (Osaka Univ. Hosp), Takanaga Niimi (Nagoya Univ.)
 [more] MI2006-129
pp.173-176
MI 2005-11-07
09:00
Chiba NIRS Statistical Analysis of Artifacts on CT Images Using Statistics of Extremes -- A New Method for Evaluation Artifacts with Gumbel Analysis :”Gumbel Evaluation Method” --
Kuniharu Imai, Mitsuru Ikeda (Nagoya Univ.), Yukihiro Enchi (Osaka Univ. Hosp.), Takanaga Niimi (Nagoya Univ.), Shinichi Wada (Niigata Univ.)
 [more] MI2005-50
pp.1-6
MI 2004-11-16
14:00
Hyogo IBRI The meaning and use of the area under a contrast-detail (C-D) curve
Takanaga Niimi (Japanese Red Cross Nagoya Daini Hospital), Kuniharu Imai, Mitsuru Ikeda, Hisatoshi Maeda (Nagoya Univ.)
A receiver operating characteristic (ROC) analysis and a contrast-detail (C-D) analysis are being used for image quality... [more] MI2004-47
pp.25-30
 Results 1 - 14 of 14  /   
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