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http://dx.doi.org/10.9718/JBER.2022.43.6.417

Development of Head Mounted Display Interface System for Controlling Wireless Capsule Endoscope  

Young-Eun, Hwang (Department of Health Sciences and Technology, Gachon Advanced Institute for Health Sciences & Technology (GAHIST), Gachon University)
Young-Don, Son (Department of Health Sciences and Technology, Gachon Advanced Institute for Health Sciences & Technology (GAHIST), Gachon University )
Publication Information
Journal of Biomedical Engineering Research / v.43, no.6, 2022 , pp. 417-423 More about this Journal
Abstract
The present study proposed a new interface system for capsule endoscopy by using head mounted display (HMD) device, which can control the orientation of the capsule endoscope with electromagnetic actuator (EMA) system. The orientation information of the HMD user was detected by the gyroscope sensor built into the device and then calculated to as an angle increment using Unity Engine compiler. The measured angle changes from the HMD were converted to the current values of the corresponding coils to be changed in the EMA system. Two experiments were designed to measure the accuracy and the intuitiveness of the HMD interface system. In the angle accuracy measurement, the capsule endoscope driven by HMD interface system showed the averaged errors of 0.68 degrees horizontally and 1.001 degrees vertically for given test angles. In the intuitiveness measurement, HMD interface system showed 1.33 times faster manipulation speed rather than the joystick interface system. In this respect, the HMD interface system for capsule endoscopy was expected to improve the overall diagnostic environment while maintaining comfort of patients and clinicians.
Keywords
Virtual reality (VR); Head mounted display (HMD); Electromagnetic actuator (EMA) system; Capsule endoscope;
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Times Cited By KSCI : 2  (Citation Analysis)
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