Recent Advancements in Localization Technologies for Wireless Capsule Endoscopy: A Technical Review

Conventional endoscopy is limited in its ability to examine the small bowel and perform long-term monitoring due to the risk of infection and tissue perforation. Wireless Capsule Endoscopy (WCE) is a painless and non-invasive method of examining the body’s internal organs using a small camera that i...

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Main Authors: Muhammad A. Ali, Neil Tom, Fahad N. Alsunaydih, Mehmet R. Yuce
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Sensors
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Online Access:https://www.mdpi.com/1424-8220/25/1/253
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author Muhammad A. Ali
Neil Tom
Fahad N. Alsunaydih
Mehmet R. Yuce
author_facet Muhammad A. Ali
Neil Tom
Fahad N. Alsunaydih
Mehmet R. Yuce
author_sort Muhammad A. Ali
collection DOAJ
description Conventional endoscopy is limited in its ability to examine the small bowel and perform long-term monitoring due to the risk of infection and tissue perforation. Wireless Capsule Endoscopy (WCE) is a painless and non-invasive method of examining the body’s internal organs using a small camera that is swallowed like a pill. The existing active locomotion technologies do not have a practical localization system to control the capsule’s movement within the body. A robust localization system is essential for safely guiding the WCE device through the complex gastrointestinal (GI) tract. Moreover, having access to the capsule’s trajectory data is highly desirable for drug delivery and surgery, as well as for creating accurate user profiles for diagnosis and future reference. Therefore, a robust, real-time, and practical localization system is imperative to advance the field of WCE and make it desirable for clinical trials. In this work, we have identified salient features of different localization techniques and categorized studies in comprehensive tables. This study is self-contained as it offers a comprehensive overview of emerging localization techniques based on magnetic field, radio frequency (RF), video, and hybrid methods. A summary at the end of each method is provided to point out the potential gaps and give directions for future research. The main point of this work is to present an in-depth review of the most recent localization techniques published in the past five years. This will assist researchers in comprehending current techniques and pinpointing potential areas for further investigation. This review can be a significant reference and guide for future research on WCE localization.
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spelling doaj-art-b5887787778f48bcb6eeb3107594bc582025-01-10T13:21:22ZengMDPI AGSensors1424-82202025-01-0125125310.3390/s25010253Recent Advancements in Localization Technologies for Wireless Capsule Endoscopy: A Technical ReviewMuhammad A. Ali0Neil Tom1Fahad N. Alsunaydih2Mehmet R. Yuce3Department of Electrical and Computer Systems Engineering, Monash University, Melbourne, VIC 3800, AustraliaDepartment of Electrical and Computer Systems Engineering, Monash University, Melbourne, VIC 3800, AustraliaDepartment of Electrical Engineering, College of Engineering, Qassim University, Buraydah 52571, Saudi ArabiaDepartment of Electrical and Computer Systems Engineering, Monash University, Melbourne, VIC 3800, AustraliaConventional endoscopy is limited in its ability to examine the small bowel and perform long-term monitoring due to the risk of infection and tissue perforation. Wireless Capsule Endoscopy (WCE) is a painless and non-invasive method of examining the body’s internal organs using a small camera that is swallowed like a pill. The existing active locomotion technologies do not have a practical localization system to control the capsule’s movement within the body. A robust localization system is essential for safely guiding the WCE device through the complex gastrointestinal (GI) tract. Moreover, having access to the capsule’s trajectory data is highly desirable for drug delivery and surgery, as well as for creating accurate user profiles for diagnosis and future reference. Therefore, a robust, real-time, and practical localization system is imperative to advance the field of WCE and make it desirable for clinical trials. In this work, we have identified salient features of different localization techniques and categorized studies in comprehensive tables. This study is self-contained as it offers a comprehensive overview of emerging localization techniques based on magnetic field, radio frequency (RF), video, and hybrid methods. A summary at the end of each method is provided to point out the potential gaps and give directions for future research. The main point of this work is to present an in-depth review of the most recent localization techniques published in the past five years. This will assist researchers in comprehending current techniques and pinpointing potential areas for further investigation. This review can be a significant reference and guide for future research on WCE localization.https://www.mdpi.com/1424-8220/25/1/253wireless capsule endoscopyWCE localizationRF-based localizationvideo-based localizationmagnetic field-based localizationWCE tracking and safety
spellingShingle Muhammad A. Ali
Neil Tom
Fahad N. Alsunaydih
Mehmet R. Yuce
Recent Advancements in Localization Technologies for Wireless Capsule Endoscopy: A Technical Review
Sensors
wireless capsule endoscopy
WCE localization
RF-based localization
video-based localization
magnetic field-based localization
WCE tracking and safety
title Recent Advancements in Localization Technologies for Wireless Capsule Endoscopy: A Technical Review
title_full Recent Advancements in Localization Technologies for Wireless Capsule Endoscopy: A Technical Review
title_fullStr Recent Advancements in Localization Technologies for Wireless Capsule Endoscopy: A Technical Review
title_full_unstemmed Recent Advancements in Localization Technologies for Wireless Capsule Endoscopy: A Technical Review
title_short Recent Advancements in Localization Technologies for Wireless Capsule Endoscopy: A Technical Review
title_sort recent advancements in localization technologies for wireless capsule endoscopy a technical review
topic wireless capsule endoscopy
WCE localization
RF-based localization
video-based localization
magnetic field-based localization
WCE tracking and safety
url https://www.mdpi.com/1424-8220/25/1/253
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AT neiltom recentadvancementsinlocalizationtechnologiesforwirelesscapsuleendoscopyatechnicalreview
AT fahadnalsunaydih recentadvancementsinlocalizationtechnologiesforwirelesscapsuleendoscopyatechnicalreview
AT mehmetryuce recentadvancementsinlocalizationtechnologiesforwirelesscapsuleendoscopyatechnicalreview