Simulation model which can visualize the shape of the colonoscope using orientation sensor network

Jaewoo Lee, Genya Ukawa, Shuna Doho, Zuohua Lin, Hiroyuki Ishii, Atsuo Takanishi

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    The Simulation Model which can visualize the shape of commercial colonoscope is proposed. This model uses kinematic chain which approximates the shape of colonoscope by serially connected multiple joint-link pairs. As the input to the model, orientation information is used. Orientation information is extracted from the Sensor Network. The sensor network consists of connecting a number of sensor units with CAN bus. Each sensor unit also has two kinds of sensor: triad of accelerometer and triad of magnetometer. Roll and pitch angle are estimated based on the accelerometer signals. Yaw angle is estimated based on the magnetometer signals. By using kinematic chain model and orientation as input, we estimate the key points which are positions of sensor units on the colonoscope. Then, we implement spline interpolation to find the intermediate points which constitutes the shape of colonoscope. We made experiment in order to check whether model has enough accuracy. Firstly, we compared estimated curve with sine curve which is used as a ground truth. Secondly, we investigated the effect of number of sensor on the accuracy. Final result says that it has enough estimation ability.

    Original languageEnglish
    Title of host publicationProceedings of the 6th IASTED International Conference on Biomechanics, BioMech 2011
    Pages29-36
    Number of pages8
    DOIs
    Publication statusPublished - 2011
    Event6th IASTED International Conference on Biomechanics, BioMech 2011 - Pittsburgh, PA
    Duration: 2011 Nov 72011 Nov 9

    Other

    Other6th IASTED International Conference on Biomechanics, BioMech 2011
    CityPittsburgh, PA
    Period11/11/711/11/9

    Fingerprint

    Sensor networks
    Sensors
    Magnetometers
    Accelerometers
    Kinematics
    Splines
    Interpolation
    Experiments

    Keywords

    • Kinematic chain
    • Orientation sensor network
    • Shape
    • Smoothness

    ASJC Scopus subject areas

    • Bioengineering
    • Mechanics of Materials
    • Biomaterials

    Cite this

    Lee, J., Ukawa, G., Doho, S., Lin, Z., Ishii, H., & Takanishi, A. (2011). Simulation model which can visualize the shape of the colonoscope using orientation sensor network. In Proceedings of the 6th IASTED International Conference on Biomechanics, BioMech 2011 (pp. 29-36) https://doi.org/10.2316/P.2011.751-025

    Simulation model which can visualize the shape of the colonoscope using orientation sensor network. / Lee, Jaewoo; Ukawa, Genya; Doho, Shuna; Lin, Zuohua; Ishii, Hiroyuki; Takanishi, Atsuo.

    Proceedings of the 6th IASTED International Conference on Biomechanics, BioMech 2011. 2011. p. 29-36.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Lee, J, Ukawa, G, Doho, S, Lin, Z, Ishii, H & Takanishi, A 2011, Simulation model which can visualize the shape of the colonoscope using orientation sensor network. in Proceedings of the 6th IASTED International Conference on Biomechanics, BioMech 2011. pp. 29-36, 6th IASTED International Conference on Biomechanics, BioMech 2011, Pittsburgh, PA, 11/11/7. https://doi.org/10.2316/P.2011.751-025
    Lee J, Ukawa G, Doho S, Lin Z, Ishii H, Takanishi A. Simulation model which can visualize the shape of the colonoscope using orientation sensor network. In Proceedings of the 6th IASTED International Conference on Biomechanics, BioMech 2011. 2011. p. 29-36 https://doi.org/10.2316/P.2011.751-025
    Lee, Jaewoo ; Ukawa, Genya ; Doho, Shuna ; Lin, Zuohua ; Ishii, Hiroyuki ; Takanishi, Atsuo. / Simulation model which can visualize the shape of the colonoscope using orientation sensor network. Proceedings of the 6th IASTED International Conference on Biomechanics, BioMech 2011. 2011. pp. 29-36
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