A tracking system for visualizing the location of a magnetically marked diagnostic capsule in real time is proposed. The intended application is the gastrointestinal (GI) tract which is regarded by gastroenterologists as a black box. An endoscopic capsule capable of releasing diagnostic biomarker probes to areas of the gastrointestinal tract that are inaccessible via conventional means will enable gastroenterologists to accurately determine the changes in functionality of the GI tract due to diseases. This requires a tracking system that can show the location of the capsule in real-time as it travels down the digestive tract. This paper presents the design and implementation of such a tracking system using multiple magnetic sensors. It is free from the disadvantages most radio-frequency tracking systems suffer from. We report on the developments of the magnetic sensing hardware, tracking algorithm based on empirically developed models and experimental results. The results reveal the suitability of the proposed system for in vivo applications.
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Aziz, S.M., Grcic, M., Vaithianathan, T. (2008). A Real-Time Tracking System for an Endoscopic Capsule using Multiple Magnetic Sensors. In: Mukhopadhyay, S.C., Gupta, G.S. (eds) Smart Sensors and Sensing Technology. Lecture Notes Electrical Engineering, vol 20. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-79590-2_14
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DOI: https://doi.org/10.1007/978-3-540-79590-2_14
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