Faculty Profiles - MORI, Kensaku

Papers - MORI, Kensaku

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Visualizing intestines for diagnostic assistance of ileus based on intestinal region segmentation from 3D CT images Reviewed

Hirohisa Oda, Kohei Nishio, Takayuki Kitasaka, Hizuru Amano, Aitaro Takimoto, Akinari Hinoki, Hiroo Uchida, Kojiro Suzuki, Hayato Itoh, Masahiro Oda, Kensaku Mori

Medical Imaging 2020: Image Processing Vol. 11314 2020.2

Visualising decision-reasoning regions in computer-aided pathological pattern diagnosis of endoscytoscopic images based on CNN weights analysis Reviewed

Hayato Itoh, Zhongyang Lu, Yuichi Mori, Masashi Misawa, Masahiro Oda, Shin-ei Kudo, Kensaku Mori

Medical Imaging 2020: Image Processing Vol. 11314 2020.2

Usefulness of fine-tuning for deep learning based multi-organ regions segmentation method from non-contrast CT volumes using small training dataset Reviewed

Yuichiro Hayashi, Chen Shen, Holger R. Roth, Masahiro Oda, Kazunari Misawa, Masahiro Jinzaki, Masahiro Hashimoto, Kanako K. Kumamaru, Shigeki Aoki, Kensaku Mori

Medical Imaging 2020: Image Processing Vol. 11314 2020.2

Automated eye disease classification method from anterior eye image using anatomical structure focused image classification technique Reviewed Open Access

Masahiro Oda, Naoyuki Maeda, Takefumi Yamaguchi, Hideki Fukuoka, Yuta Ueno, Kensaku Mori

Medical Imaging 2020: Image Processing Vol. 11314 2020.2

Improved visual SLAM for bronchoscope tracking and registration with pre-operative CT images

Cheng Wang, Masahiro Oda, Yuichiro Hayashi, Takayuki Kitasaka, Hirotoshi Honma, Hirotsugu Takabatake, Masaki Mori, Hiroshi Natori, Kensaku Mori

Medical Imaging 2020: Image Processing Vol. 11315 2020.2

仮想腹腔鏡画像生成と深層学習による腹腔鏡画像からの術具領域セグメンテーション

小澤卓也, 林雄一郎, 小田紘久, 小田昌宏, 北坂孝幸, 竹下修由, 伊藤雅昭, 森健策

電子情報通信学会技術研究報告(MI) Vol. 119 ( 399 ) page： 129 - 134 2020.1

腹腔鏡下手術支援のためのU-Netに基づく腹腔鏡動画像からの出血領域の推定

山本翔太, 林雄一郎, 盛満慎太郎, 小澤卓也, 北坂孝幸, 小田昌宏, 竹下修由, 伊藤雅昭, 森健策

電子情報通信学会技術研究報告(MI) Vol. 119 ( 399 ) page： 209 - 214 2020.1

MICCAI 2019参加報告

小田昌宏, 伊東隼人, 宮内翔子, 諸岡健一, 松崎博貴, 花岡昇平, 古川亮, 増谷佳孝, 森健策

電子情報通信学会技術研究報告(MI) Vol. 119 ( 399 ) page： 219 - 226 2020.1

CycleGANによる腸管電子洗浄とその腸管閉塞部位検出への応用

西尾光平, 小田紘久, 千馬耕亮, 北坂孝幸, 林雄一郎, 伊東隼人, 小田昌宏, 檜顕成, 内田広夫, 森健策

電子情報通信学会技術研究報告(MI) Vol. 119 ( 399 ) page： 243 - 248 2020.1

臨床肺CT画像と切除肺マイクロCT画像の非剛体位置合わせ手法の検討

波多腰慎矢, 小田紘久, 林雄一郎, Holger R. Roth, 中村彰太, 小田昌宏, 森雅樹, 高畠博嗣, 名取博, 森健策

電子情報通信学会技術研究報告(MI) Vol. 119 ( 399 ) page： 249 - 254 2020.1

Automated eye disease classification method from anterior eye image using anatomical structure focused image classification technique Reviewed Open Access

Masahiro Oda, Takefumi Yamaguchi, Hideki Fukuoka, Yuta Ueno, Kensaku Mori

Progress in Biomedical Optics and Imaging - Proceedings of SPIE Vol. 11314 2020

Stable polyp-scene classification via subsampling and residual learning from an imbalanced large dataset. International journal Open Access

Hayato Itoh, Holger Roth, Masahiro Oda, Masashi Misawa, Yuichi Mori, Shin-Ei Kudo, Kensaku Mori

Healthcare technology letters Vol. 6 ( 6 ) page： 237 - 242 2019.12

Language：English Publishing type：Research paper (scientific journal)

This Letter presents a stable polyp-scene classification method with low false positive (FP) detection. Precise automated polyp detection during colonoscopies is essential for preventing colon-cancer deaths. There is, therefore, a demand for a computer-assisted diagnosis (CAD) system for colonoscopies to assist colonoscopists. A high-performance CAD system with spatiotemporal feature extraction via a three-dimensional convolutional neural network (3D CNN) with a limited dataset achieved about 80% detection accuracy in actual colonoscopic videos. Consequently, further improvement of a 3D CNN with larger training data is feasible. However, the ratio between polyp and non-polyp scenes is quite imbalanced in a large colonoscopic video dataset. This imbalance leads to unstable polyp detection. To circumvent this, the authors propose an efficient and balanced learning technique for deep residual learning. The authors' method randomly selects a subset of non-polyp scenes whose number is the same number of still images of polyp scenes at the beginning of each epoch of learning. Furthermore, they introduce post-processing for stable polyp-scene classification. This post-processing reduces the FPs that occur in the practical application of polyp-scene classification. They evaluate several residual networks with a large polyp-detection dataset consisting of 1027 colonoscopic videos. In the scene-level evaluation, their proposed method achieves stable polyp-scene classification with 0.86 sensitivity and 0.97 specificity.

DOI： 10.1049/htl.2019.0079

Realistic Endoscopic Image Generation Method Using Virtual-to-real Image-domain Translation Open Access

Masahiro Oda, Kiyohito Tanaka, Hirotsugu Takabatake, Masaki Mori, Hiroshi Natori, Kensaku Mori

MICCAI 2019 Healthcare Technology Letters Vol. 6 ( 6 ) page： 214 - 219 2019.12

Abdominal artery segmentation method from CT volumes using fully convolutional neural network Reviewed Open Access

Masahiro Oda, Holger R. Roth, Takayuki Kitasaka, Kazunari Misawa, Michitaka Fujiwara, Kensaku Mori

International Journal of Computer Assisted Radiology and Surgery Vol. 14 ( 12 ) page： 2069 - 2081 2019.12

Automatic Quantitative Analysis of Kidney Tumor Using 3D Fully Convolutional Network

Chenglong Wang, Masahiro Oda, Yuichiro Hayashi, Naoto Sassa, Tokunori Yamamoto, Kensaku Mori

RSNA2019 page： UR002-EB-X 2019.12

Technique for Improving Accuracy of Deep Learning-based Multi-Organ Segmentation from CT Volumes

Chen Shen, Hirohisa Oda, MENG, Masahiro Oda, Holger R. Roth, Yuichiro Hayashi, Kensaku Mori, Takayuki Kitasaka, Kazunari Misawa

RSNA2019 page： N021-EC-X 2019.12

Micro Lung Cancer Analysis Based on Micro CT Imaging Using Generative Adversarial Network

Kensaku Mori, Takayasu Moriya, Hirohisa Oda, MENG , Midori Mitarai, Masahiro Oda, Shota Nakamura, Takaaki Sugino, Holger R. Roth

RSNA2019 page： CH007-EC-X 2019.12

Generative Adversarial Networks Showcase: Their Mechanisms and Radiological Applications

Masahiro Oda, Hirohisa Oda, Kanako K. Kumamaru, Shigeki Aoki, Hiroshi Natori, Kensaku Mori, Masaki Mori, Hirotsugu Takabatake

RSNA2019 page： AI020-EB-X 2019.12

Realistic Endoscopic Image Generation Method Using Virtual-to-real Image-domain Translation Open Access

Masahiro Oda, Kiyohito Tanaka, Hirotsugu Takabatake, Masaki Mori, Hiroshi Natori, Kensaku Mori

Healthcare Technology Letters Vol. 6 ( 6 ) page： 214-219 2019.12

大腸肛門病理学におけるAI利用の将来像

森健策

日本大腸肛門病学学術集会　抄録号 page： A17 2019.10

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Papers - MORI, Kensaku