@inproceedings{da30faa1c97f41b1be8062f257e47ccc,
title = "Towards hybrid bronchoscope tracking under respiratory motion - Evaluation on a dynamic motion phantom",
abstract = "This paper presents a hybrid camera tracking method that uses electromagnetic (EM) tracking and intensitybased image registration and its evaluation on a dynamic motion phantom. As respiratory motion can significantly affect rigid registration of the EM tracking and CT coordinate systems, a standard tracking approach that initializes intensity-based image registration with absolute pose data acquired by EM tracking will fail when the initial camera pose is too far from the actual pose. We here propose two new schemes to address this problem. Both of these schemes intelligently combine absolute pose data from EM tracking with relative motion data combined from EM tracking and intensity-based image registration. These schemes significantly improve the overall camera tracking performance. We constructed a dynamic phantom simulating the respiratory motion of the airways to evaluate these schemes. Our experimental results demonstrate that these schemes can track a bronchoscope more accurately and robustly than our previously proposed method even when maximum simulated respiratory motion reaches 24 mm.",
author = "Xi{\'o}ngbiāo Lu{\'o} and Marco Feuerstein and Takamasa Sugiura and Takayuki Kitasaka and Kazuyoshi Imaizumi and Yoshinori Hasegawa and Kensaku Mori",
year = "2010",
doi = "10.1117/12.844139",
language = "English",
series = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",
publisher = "SPIE",
editor = "Wong, {Kenneth H.} and Miga, {Michael I.}",
booktitle = "Medical Imaging 2010",
address = "United States",
note = "Medical Imaging 2010: Visualization, Image-Guided Procedures, and Modeling ; Conference date: 14-02-2010 Through 16-02-2010",
}