A Novel Method for Locating a Magnetic-Assisted Capsule Endoscope System

Sheng Yang Yen, Hao En Huang, Hsuan Chen Chen, Fong Wen Huang, Fat Moon Suk, Gi Shih Lien, Chih Wen Liu

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


In this article, we propose a method for locating a magnetic capsule endoscope, which is utilized to observe the gastrointestinal tract, especially for colon. Recent studies mainly focus on either single-magnet positioning or multiple magnets positioning with similar scale in magnetic parameters, whereas these methods cannot be directly applied to the proposed magnetic-assisted capsule endoscope system, in which two magnets with big differences in magnetic parameters are used. An algorithm based on the Levenberg-Marquardt algorithm and a Hall sensor array is presented to solve this problem. Three different experiments have been carried out to validate the feasibility and effectiveness of the proposed method for the magnetic capsule positioning and orientation.

Original languageEnglish
Article number9163382
JournalIEEE Transactions on Magnetics
Issue number10
Publication statusPublished - Oct 2020


  • Capsule endoscope
  • colon
  • magnetic capsule
  • magnetic control
  • magnetic positioning

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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