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A Study of Capsule Endoscopy Orientation Estimation Using Received Signal Strength

Published

Author(s)

Kamran Sayrafian, Katjana Krhac, Mehdi Alasti, Kamya Yazdandoost, Dina Simunic

Abstract

Comprehensive study of wireless communication for ingestible electronics is a very challenging task. To initiate the study on wireless capsule endoscopy, an innovative immersive platform containing an enhanced 3D human body model has been developed. This platform allows for flexible placement of a capsule inside the gastrointestinal tract and multiple receivers around the abdomen area. It is shown that any directionality (or equivalently null) in the antenna radiation pattern can be exploited to sense changes in the orientation of the capsule through observation of the S21 vector at a set of on-body receivers. Two methodologies i.e. complex cross-correlation and Minkowski distance were used to assess capsule orientation estimation with respect to a reference position. The study was performed within the Ultra-Wide Band frequency range as this technology is considered to be an attractive candidate for the next generation of wireless capsule endoscopy.
Conference Dates
September 9-12, 2018
Conference Location
Bologna
Conference Title
IEEE 28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
- (PIMRC 2018)

Keywords

Wireless Capsule Endoscopy, Orientation Estimation, Ultra-Wide Band, Correlation Coefficient

Citation

Sayrafian, K. , Krhac, K. , Alasti, M. , Yazdandoost, K. and Simunic, D. (2018), A Study of Capsule Endoscopy Orientation Estimation Using Received Signal Strength, IEEE 28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications - (PIMRC 2018), Bologna, -1, [online], https://doi.org/10.1109/PIMRC.2018.8580786 (Accessed December 1, 2021)
Created December 20, 2018, Updated May 13, 2020