Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
MI |
2014-01-27 13:30 |
Okinawa |
Bunka Tenbusu Kan |
An automated recognition method for blurred X-ray images Tomoya Muroi, Yongbum Lee, Du-Yih Tsai (Niigata Univ.), Masaki Tsurumaki (Nakajo Chuo Hosp.) MI2013-101 |
In this study, we proposed an automated recognition method for blurred radiographs. The method involved edge detection u... [more] |
MI2013-101 pp.245-248 |
MI |
2014-01-27 13:30 |
Okinawa |
Bunka Tenbusu Kan |
Evaluation of chest X-ray images using fractal dimension including contrast sensitivity function of human eyes Shun Endo, Yongbum Lee, Du-Yih Tsai (Niigata Univ.), Takeshi Hara (Gifu Univ.) MI2013-119 |
Objective evaluation, e.g. using MTF or NPS, of X-ray imaging system may not correctly correspond to subject evaluation,... [more] |
MI2013-119 pp.331-334 |
MI |
2012-01-20 11:25 |
Okinawa |
|
[Poster Presentation]
Improvement of image quality in digital radiography by use of a combined wavelet transform method Haruyuki Watanabe, Du-Yih Tsai, Yongbum Lee, Eri Matsuyama (Niigata Univ.), Katsuyuki Kojima (Hamamatsu Univ.) MI2011-126 |
This study presents an improved wavelet-transform-based method for offering a possibility to reduce the radiation dose w... [more] |
MI2011-126 pp.269-274 |
MI |
2011-07-12 10:30 |
Hokkaido |
Hokkaido University |
Investigation of fundamental techniques for autonomous computer-aided diagnosis system Yongbum Lee, Du-Yih Tsai, Yuriko Yoshida (Niigata Univ.) MI2011-33 |
A novel application of computer-aided diagnosis (CAD), namely autonomous CAD, was proposed in this study. Autonomous CAD... [more] |
MI2011-33 pp.7-10 |
MI |
2011-07-12 15:10 |
Hokkaido |
Hokkaido University |
Denoising of mammographic images using hierarchical correlations of the coefficients of discrete stationary wavelet transforms Eri Matsuyama, Du-Yih Tsai (Niigata Univ.), Yongbum Lee, Haruyuki Watanabe (Niigata Univ), Masaki Tsurumaki (Nakajyo Central HP), Atsuko Takada (Niigata Univ) MI2011-38 |
In this report, we propose an effective denoising method to attempt to denoise mammographic images. The method is based ... [more] |
MI2011-38 pp.31-36 |
MI |
2010-11-15 13:00 |
Kyoto |
Shimadzu Corp. |
Calculations of wiener spectrum in x-ray images using FPD by extended checker board-model Takumi Sawada, Isao Yamada (GNCT), Du-Yih Tsai (Niigata Univ.), Masao Matsumoto (Osaka Univ.) MI2010-72 |
Recently, FPD(Flat Panel Detector) is used for a detector of medical x-ray imaging system. It is known widely that vario... [more] |
MI2010-72 pp.33-37 |
MI |
2010-01-29 11:40 |
Okinawa |
Naha-Bunka-Tenbusu |
[Poster Presentation]
Reduction of Radiation Dose in Computed Radiography Using Wavelet Transform Haruyuki Watanabe, Du-Yih Tsai, Yongbum Lee, Eri Matsuyama (Niigata Univ.), Katsuyuki Kojima (Hamamatsu Univ.) MI2009-127 |
In this paper, we investigated the effect of the use of wavelet transform on dose reduction in computed radiography (CR)... [more] |
MI2009-127 pp.279-284 |
MI |
2009-01-20 14:30 |
Overseas |
National Taiwan University |
[Poster Presentation]
Resolution and Noise Trade-Off Analysis for Digital Radiography Using Mutual-Information Metric Eri Matsuyama, Du-Yih Tsai, Yongbum Lee (Niigata Univ.), Katsuyuki Kojima (Univ. of Hamamatsu) MI2008-145 |
Currently, the modulation transfer function and noise power spectrum are commonly used as image quality metrics to chara... [more] |
MI2008-145 pp.391-396 |
MI |
2009-01-21 09:50 |
Overseas |
National Taiwan University |
[Poster Presentation]
An Algorithm for Automated Determination of Sagittal Imaging Plane from Positioning Images in Cervical Spinal Cord MRI Masaki Tsurumaki (Nakajo Central Hp.), Du-Yih Tsai, Yongbum Lee, Masaru Sekiya (Niigata Univ.), Kiyoko Kazama (Nakajo Central Hp.) MI2008-172 |
Development of a high-speed imaging technique in MR imaging is motivated by the need to shorten exam time. However, the ... [more] |
MI2008-172 pp.507-512 |
MI |
2009-01-21 09:50 |
Overseas |
National Taiwan University |
[Poster Presentation]
Irreversible Compressed Images Using Physical Image Quality Measures Haruyuki Watanabe, Du-Yih Tsai, Yongbum Lee (Niigata Univ.), Tomohiro Nakamura (Teikyo Univ.) MI2008-183 |
Compression algorithms are widely used in medical image database systems. So far, compressed images have been mainly eva... [more] |
MI2008-183 pp.559-564 |
MI |
2008-07-16 13:00 |
Hokkaido |
Sapporo Medical University |
Image Quality Evaluation of Digital Radiographs by Use of Transmitted Information Metric Eri Matsuyama, Yongbum Lee, Du-Yih Tsai (Niigata Univ.) MI2008-21 |
This paper presents an information-entropy-based approach for evaluating overall image quality in medical imaging system... [more] |
MI2008-21 pp.9-14 |
PRMU, MI |
2007-05-25 14:40 |
Mie |
Mie Univ. |
Theoretical Analysis of Relationship between Signal-Detctability and System Condition of Flat-Panel Detector Isao Yamada, Hiroshi Sawada (Gifu College), Kazuo Tanaka (Gifu Univ), Du-Yih Tsai (Niigata Univ.) PRMU2007-24 MI2007-24 |
This paper deals with theoretical analysis of the relationships between signal-detectability of images using the indirec... [more] |
PRMU2007-24 MI2007-24 pp.133-136 |
PRMU, MI |
2006-05-26 09:00 |
Aichi |
Aichi Prefectural University |
A novel adaptive partial median filter for detectability improvement of acute stroke signs on brain CT images Yongbum Lee (Niigata Univ.), Noriyuki Takahashi (Sendai City Hosp.), Du-Yih Tsai (Niigata Univ.) |
Computed tomography (CT) is an important modality for diagnosis of hyper-acute stroke. In this study, a novel adaptive p... [more] |
PRMU2006-23 MI2006-23 pp.19-24 |
MI |
2006-01-27 16:00 |
Okinawa |
Miyakojimashi-Chuo-Kouminkan |
Automatic detection of nodules isolated and touched lung wall on chest X-ray CT image using localized autocorrelation features Motonari Hirose, Takeshi Hara, Xiangrong Zhou, Hiroshi Fujita (Gifu Univ.), Ryujiro Yokoyama, Takuji Kiryu, Hiroaki Hoshi (Gifu University Hospital), Yongbum Lee, Du-Yih Tsai (Niigata Univ.) |
[more] |
MI2005-101 pp.139-142 |
MI |
2005-09-22 10:30 |
Overseas |
Korea Univ. Kuro Hospital |
Nodule Detection in 3D Chest CT Images Using 2nd Order Autocorrelation Features and GA Template Matching Takeshi Hara, Motonari Hirose, Xiangrong Zhou, Hiroshi Fujita, Takuji Kiryu, Hiroaki Hoshi (Gifu Univ.), Ryujiro Yokoyama (Gifu Univ. Hosp.), Yongbum Lee, Du-Yih Tsai (Niigata Univ.) |
[more] |
MI2005-39 pp.47-49 |
MI |
2005-01-22 14:20 |
Okinawa |
Univ. of the Ryukus |
Automatic Detection of Nodules on Chest X-ray CT Images Using Higher-order Autocorrelation Features and GA Template-matching Method Motonari Hirose, Takeshi Hara, Xiangrong Zhou, Hiroshi Fujita, Takuji Kiryu, Ryujiro Yokoyama, Hiroaki Hoshi (Gifu Univ.), Yongbum Lee, Du-Yih Tsai (Niigata Univ.) |
[more] |
MI2004-101 pp.115-118 |