Search Results for author: Takayuki Kitasaka

Found 10 papers, 0 papers with code

Regression Forest-Based Atlas Localization and Direction Specific Atlas Generation for Pancreas Segmentation

no code implementations7 May 2020 Masahiro Oda, Natsuki Shimizu, Ken'ichi Karasawa, Yukitaka Nimura, Takayuki Kitasaka, Kazunari Misawa, Michitaka Fujiwara, Daniel Rueckert, Kensaku MORI

This paper proposes a fully automated atlas-based pancreas segmentation method from CT volumes utilizing atlas localization by regression forest and atlas generation using blood vessel information.

Automated Pancreas Segmentation Pancreas Segmentation

Colon Shape Estimation Method for Colonoscope Tracking using Recurrent Neural Networks

no code implementations20 Apr 2020 Masahiro Oda, Holger R. Roth, Takayuki Kitasaka, Kazuhiro Furukawa, Ryoji Miyahara, Yoshiki Hirooka, Hidemi Goto, Nassir Navab, Kensaku MORI

We propose a colon deformation estimation method using RNN and obtain the colonoscope shape from electromagnetic sensors during its insertion into the colon.

Colonoscope tracking method based on shape estimation network

no code implementations20 Apr 2020 Masahiro Oda, Holger R. Roth, Takayuki Kitasaka, Kazuhiro Furukawa, Ryoji Miyahara, Yoshiki Hirooka, Nassir Navab, Kensaku MORI

We utilize the shape estimation network (SEN), which estimates deformed colon shape during colonoscope insertions.

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

no code implementations3 Mar 2020 Hirohisa Oda, Kohei Nishio, Takayuki Kitasaka, Hizuru Amano, Aitaro Takimoto, Hiroo Uchida, Kojiro Suzuki, Hayato Itoh, Masahiro Oda, Kensaku MORI

This paper presents a visualization method of intestine (the small and large intestines) regions and their stenosed parts caused by ileus from CT volumes.

Machine learning-based colon deformation estimation method for colonoscope tracking

no code implementations8 Jun 2018 Masahiro Oda, Takayuki Kitasaka, Kazuhiro Furukawa, Ryoji Miyahara, Yoshiki Hirooka, Hidemi Goto, Nassir Navab, Kensaku MORI

An estimation method of colon deformations occur during colonoscope insertions is necessary to reduce tracking errors.

Towards dense volumetric pancreas segmentation in CT using 3D fully convolutional networks

no code implementations17 Nov 2017 Holger Roth, Masahiro Oda, Natsuki Shimizu, Hirohisa ODA, Yuichiro Hayashi, Takayuki Kitasaka, Michitaka Fujiwara, Kazunari Misawa, Kensaku MORI

Pancreas segmentation in computed tomography imaging has been historically difficult for automated methods because of the large shape and size variations between patients.

Pancreas Segmentation

Airway segmentation from 3D chest CT volumes based on volume of interest using gradient vector flow

no code implementations26 Apr 2017 Qier Meng, Takayuki Kitasaka, Masahiro Oda, Junji Ueno, Kensaku MORI

In this paper, we propose a new airway segmentation method from 3D chest CT volumes based on volume of interests (VOI) using gradient vector flow (GVF).

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