Faculty Profiles - Deguchi Daisuke

Papers - Deguchi Daisuke

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Automated Anatomical Labeling of Bronchial Branches Extracted from CT Datasets Based on Machine Learning and Combination Optimization and Its Application to Bronchoscope Guidance Reviewed

Kensaku Mori, Shunsuke Ota, Daisuke Deguchi, Takayuki Kitasaka, Yasuhito Suenaga, Shingo Iwano, Yoshinori Hasegawa, Hirotsugu Takabatake, Masaki Mori, Hiroshi Natori

Proceedings of the 12th International Conference on Medical Image Computing and Computer-Assisted Intervention (MICCAI2009) Vol. LNCS 5762, Part II page： 707 - 714 2009.9

Language：English Publishing type：Research paper (international conference proceedings)

This paper presents a method for the automated anatomical labeling of bronchial branches extracted from 3D CT images based on machine learning and combination optimization. We also show applications of anatomical labeling on a bronchoscopy guidance system. This paper performs automated labeling by using machine learning and combination optimization. The actual procedure consists of four steps: (a) extraction of tree structures of the bronchus regions extracted from CT images, (b) construction of AdaBoost classifiers, (c) computation of candidate names for all branches by using the classifiers, (d) selection of best combination of anatomical names. We applied the proposed method to 90 cases of 3D CT datasets. The experimental results showed that the proposed method can assign correct anatomical names to 86.9% of the bronchial branches up to the sub-segmental lobe branches. Also, we overlaid the anatomical names of bronchial branches on real bronchoscopic views to guide real bronchoscopy.

DOI： 10.1007/978-3-642-04271-3_86

Low-resolution Character Recognition by Video-based Super-resolution Reviewed

大倉直, 出口大輔, 高橋友和, 井手一郎, 村瀬洋

Proceedings of the 10th International Conference on Document Analysis and Recognition (ICDAR2009) page： 191 - 195 2009.7

Selective image similarity measure for bronchoscope tracking based on image registration Reviewed

Daisuke Deguchi, Kensaku Mori, Marco Feuerstein, Takayuki Kitasaka, Calvin R. Maurer Jr., Yasuhito Suenaga, Hirotsugu Takabatake, Masaki Mori, Hiroshi Natori

Medical Image Analysis Vol. 13 ( 4 ) page： 621 - 633 2009.6

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)

We propose a selective method of measurement for computing image similarities based on characteristic structure extraction and demonstrate its application to flexible endoscope navigation, in particular to a bronchoscope navigation system. Camera motion tracking is a fundamental function required for image-guided treatment or therapy systems. In recent years, an ultra-tiny electromagnetic sensor commercially became available, and many image-guided treatment or therapy systems use this sensor for tracking the camera position and orientation. However, due to space limitations, it is difficult to equip the tip of a bronchoscope with such a position sensor, especially in the case of ultra-thin bronchoscopes. Therefore, continuous image registration between real and virtual bronchoscopic images becomes an efficient tool for tracking the bronchoscope. Usually, image registration is done by calculating the image similarity between real and virtual bronchoscopic images. Since global schemes to measure image similarity, such as mutual information, squared gray-level difference, or cross correlation, average differences in intensity values over an entire region, they fail at tracking of scenes where less characteristic structures can be observed. The proposed method divides an entire image into a set of small subblocks and only selects those in which characteristic shapes are observed. Then image similarity is calculated within the selected subblocks. Selection is done by calculating feature values within each subblock. We applied our proposed method to eight pairs of chest X-ray CT images and bronchoscopic video images. The experimental results revealed that bronchoscope tracking using the proposed method could track up to 1600 consecutive bronchoscopic images (about 50s) without external position sensors. Tracking performance was greatly improved in comparison with a standard method utilizing squared gray-level differences of the entire images.

DOI： 10.1016/j.media.2009.06.001

An improved method for automated recognition of bronchial tree structure by optimizing combinations of candidate anatomical names Reviewed

Takayuki Kitasaka, Shunsuke Ota, Daisuke Deguchi, Kensaku Mori, Yasuhito Suenaga, Yoshinori Hasegawa, Kazuyoshi Imaizumi, Shingo Iwano, Hirotsugu Takabatake, Masaki Mori, Hiroshi Natori

International Journal of Computer Assisted Radiology and Surgery Vol. 4 page： 327 - 328 2009.6

Ego-localization using Streetscape Image Sequences from In-vehicle Cameras Reviewed

Hiroyuki Uchiyama, Daisuke Deguchi, Tomokazu Takahashi, Ichiro Ide, Hiroshi Murase

Proceedings of 2009 IEEE Intelligent Vehicles Symposium (IV2009) page： 185 - 190 2009.6

Automatic Calibration of an In-vehicle Gaze Tracking System Using Driver's Typical Gaze Behavior Reviewed

Kenji Yamashiro, Daisuke Deguchi, Tomokazu Takahashi, Ichiro Ide, Hiroshi Murase, Kazunori Higuchi, Takashi Naito

Proceedings of 2009 IEEE Intelligent Vehicles Symposium (IV2009) page： 998 - 1003 2009.6

Recognition of Road Markings from In-Vehicle Camera Images by a Generative Learning Method Reviewed

Masafumi Noda, Tomokazu Takahashi, Daisuke Deguchi, Ichiro Ide, Hiroshi Murase, Yoshiko Kojima, Takashi Naito

Proceedings of IAPR Conference on Machine Vision Applications (MVA) 2009 page： 514 - 517 2009.5

A method for accelerating bronchoscope tracking based on image registration by using GPU Reviewed

Takamasa Sugiura, Daisuke Deguchi, Marco Feuerstein, Takayuki Kitasaka, Yasuhito Suenaga, Kensaku Mori

Proceedings of SPIE Medical Imaging 2009 Vol. 7261 page： 726108 - 1 2009.2

Automatic mediastinal lymph node detection in chest CT Reviewed

Marco Feuerstein, Daisuke Deguchi, Takayuki Kitasaka, Shingo Iwano, Kazuyoshi Imaizumi, Yoshinori Hasegawa, Yasuhito Suenaga, Kensaku Mori

Proceedings of SPIE Medical Imaging 2009 Vol. 7260 page： 1 - 11 2009.2

Development of a Common Platform for Computer-Aided Diagnosis of Medical Images Reviewed

Yukitaka Nimura, Daisuke Deguchi, Takayuki Kitasaka, Yasuhito Suenaga, Kensaku Mori

Medical Imaging Technology Vol. 26 ( 5 ) page： 327 - 337 2008.11

PLUTO: A Common CAD Platform for Multiorgan Multidisease CAD (MoMd-CAD) Reviewed

Yukitaka Nimura, Daisuke Deguchi, Takayuki Kitasaka, Kensaku Mori, Yasuhito Suenaga

RSNA (Radiological Society of North America) Scientific Assembly and Annual Meeting Program 2008 page： 904 2008.11

A Method for Accelerating Bronchoscope Tracking Based on Image Registration by GPGPU Reviewed

Takamasa Sugiura, Daisuke Deguchi, Takayuki Kitasaka, Kensaku Mori, Yasuhito Suenaga

Proceedings of International Workshop on Augmented environments for Medical Imaging and Computer-aided Surgery (AMI-ARCS) 2008 page： 130 - 139 2008.9

Improvement of Accuracy of Marker-Free Bronchoscope Tracking Using Electromagnetic Tracker Based on Bronchial Branch Information Reviewed

Kensaku Mori, Daisuke Deguchi, Takayuki Kitasaka, Yasuhito Suenaga, Yoshinori Hasegawa, Kazuyoshi Imaizumi, Hirotsugu Takabatake

Proceedings of the 11th International Conference on Medical Image Computing and Computer-Assisted Intervention (MICCAI2008) Vol. LNCS 5242, Part II page： 535 - 542 2008.9

Augmented display of anatomical names of bronchial branches for bronchoscopy assistance Reviewed

Shunsuke Ota, Daisuke Deguchi, Takayuki Kitasaka, Kensaku Mori, Yasuhito Suenaga, Yoshinori Hasegawa, Kazuyoshi Imaizumi, Hirotsugu Takabatake, Masaki Mori, Hiroshi Natori

Proceedings of the 4th International Workshop on Medical Imaging and Augmented Reality (MIAR2008) Vol. LNCS 5128 page： 377 - 384 2008.8

An improved method for bronchoscope tracking using an electromagnetic tracker without fiducial markers Reviewed

Daisuke Deguchi, Kazuyoshi Ishitani, Takayuki Kitasaka, Kensaku Mori, Yasuhito Suenaga, Yoshinori Hasegawa, Kazuyoshi Imaizumi

Proceedings of the 22st International Congress and Exhibition on Computer Assisted Radiology and Surgery (CARS2008) Vol. 3 page： S301 2008.6

Automated anatomical labeling of bronchaial branches using multiple classifiers and its application to bronchoscopy guidance Reviewed

Shunsuke Ota, Daisuke Deguchi, Takayuki Kitasaka, Kensaku Mori, Yasuhito Suenaga, Yoshinori Hasegawa, Kazuyoshi Imaizumi, Hirotsugu Takabatake, Masaki Mori, Hiroshi Natori

Proceedings of the 22st International Congress and Exhibition on Computer Assisted Radiology and Surgery (CARS2008) Vol. 3 page： S269 2008.6

Fiducial-free bronchoscope tracking using ultra-tiny electromagnetic tracker based on non-rigid transformation technique Reviewed

Kensaku Mori, Kazuyoshi Ishitani, Daisuke Deguchi, Takayuki Kitasaka, Yasuhito Suenaga, Yoshinori Hasegawa, Kazuyoshi Imaizumi

Proceedings of the 22st International Congress and Exhibition on Computer Assisted Radiology and Surgery (CARS2008) Vol. 3 page： S105 2008.6

Automated anatomical labeling of bronchial branches using multiple classifiers and its application to bronchoscopy guidance based on fusion of virtual and real bronchoscopy Reviewed

Shunsuke Ota, Daisuke Deguchi, Takayuki Kitasaka, Kensaku Mori, Yasuhito Suenaga, Yoshinori Hasegawa, Kazuyoshi Imaizumi, Hirotsugu Takabatake, Masaki Mori, Hiroshi Natori

Proceedings of SPIE Medical Imaging 2008 Vol. 6916 page： 1 - 12 2008.2

Bronchoscope Tracking Without Fiducial Markers Using Ultra-tiny Electromagnetic Tracking System and Its Evaluation in Different Environments Reviewed

Kensaku Mori, Daisuke Deguchi, Kazuyoshi Ishitani, Takayuki Kitasaka, Yasuhito Suenaga, Yoshinori Hasegawa, Kazuyoshi Imaizumi, Hirotsugu Takabatake

Proceedings of the 10th International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI2007) Vol. LNCS 4792, Part II page： 644 - 651 2007.10

A method for bronchoscope tracking using position sensor without fiducial markers Reviewed

Daisuke Deguchi, Kazuyoshi Ishitani, Takayuki Kitasaka, Kensaku Mori, Yasuhito Suenaga, Yoshinori Hasegawa, Hirotsugu Takabatake, Masaki Mori, Hiroshi Natori

Proceedings of the 21st International Congress and Exhibition on Computer Assisted Radiology and Surgery (CARS2007) Vol. 2 page： S11-S13 2007.6

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Papers - Deguchi Daisuke