Real time algorithm for magnet's localization in capsule endoscope

To track the movement of a wireless capsule, a magnetic localization and orientation system is designed. In this system, a permanent magnet is enclosed in the capsule, which generates a magnetic field around. With the magnetic sensor array arranged out of the human body, we can measure the magnet�...

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Bibliographic Details
Published in2009 IEEE International Conference on Automation and Logistics pp. 2030 - 2035
Main Authors Shuang Song, Chao Hu, Mao Li, Wanan Yang, Meng, M.Q.-H.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2009
Subjects
Curve fitting
Endoscopes
Humans
Least Squares Curve Fitting
Least squares methods
Magnetic field measurement
Magnetic Localization
Magnetic sensors
Nonlinear Minimization
Permanent magnets
Sensor arrays
Tracking
Wireless Capsule Endoscope
Wireless sensor networks
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ISBN9781424447947
1424447941
ISSN2161-8151
DOI10.1109/ICAL.2009.5262602

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Summary:To track the movement of a wireless capsule, a magnetic localization and orientation system is designed. In this system, a permanent magnet is enclosed in the capsule, which generates a magnetic field around. With the magnetic sensor array arranged out of the human body, we can measure the magnet's magnetic signals, and compute the capsule's 3D localization and 2D orientation parameters by applying an appropriate algorithm. In this paper, we presented a real time localization algorithm that consists of the Levenberg-Marquardt (LM) algorithm and the Least Squares Curve Fitting Method. The experimental results show that this algorithm has good accuracy, high speed and high robustness.
ISBN:9781424447947
1424447941
ISSN:2161-8151
DOI:10.1109/ICAL.2009.5262602