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Robotic validation of visual odometry for wireless capsule endoscopy

Iakovidis, Dimitris K.; Dimas, George; Karargyris, Alexandros; Ciuti, Gastone; Bianchi, Federico; Koulaouzidis, Anastasios LU and Toth, Ervin LU (2016) 2016 IEEE International Conference on Imaging Systems and Techniques, IST 2016 In IST 2016 - 2016 IEEE International Conference on Imaging Systems and Techniques, Proceedings p.83-87
Abstract

Wireless capsule endoscopy (WCE) is the prime diagnostic modality for the small-bowel. It consists in a swallowable color camera that enables the visual detection and assessment of abnormalities, without patient discomfort. The localization of the capsule is currently performed in the 3D abdominal space using radiofrequency (RF) triangulation. However, this approach does not provide sufficient information for the localization of the capsule, and therefore for the localization of the detected abnormalities, within the gastrointestinal (GI) lumen. To cope with this problem, we have recently proposed a method for visual tracking of the capsule endoscope (CE). It is based solely on visual features extracted from the captured images during... (More)

Wireless capsule endoscopy (WCE) is the prime diagnostic modality for the small-bowel. It consists in a swallowable color camera that enables the visual detection and assessment of abnormalities, without patient discomfort. The localization of the capsule is currently performed in the 3D abdominal space using radiofrequency (RF) triangulation. However, this approach does not provide sufficient information for the localization of the capsule, and therefore for the localization of the detected abnormalities, within the gastrointestinal (GI) lumen. To cope with this problem, we have recently proposed a method for visual tracking of the capsule endoscope (CE). It is based solely on visual features extracted from the captured images during the journey of the CE in the GI tract, enabling therefore visual odometry. Due to lack of ex-vivo or in-vivo ground truth data, the feasibility of that method was assessed using relative measurements in an image-based simulation experiment. In this paper, we make one step forward towards the assessment of the absolute localization capabilities of visual odometry using a calibrated in-vitro experimental setup. The obtained results validate the feasibility of the proposed approach, highlight the difficulty of this complex problem, and reveal the challenges ahead.

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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
camera calibration, test benches for measurements, visual odometry, wireless capsule endoscopy
in
IST 2016 - 2016 IEEE International Conference on Imaging Systems and Techniques, Proceedings
pages
5 pages
publisher
Institute of Electrical and Electronics Engineers Inc.
conference name
2016 IEEE International Conference on Imaging Systems and Techniques, IST 2016
external identifiers
  • scopus:85003956450
ISBN
9781509018178
DOI
10.1109/IST.2016.7738202
language
English
LU publication?
yes
id
6cc3d7c9-3804-43b4-ac89-38cad28c53bc
date added to LUP
2016-12-28 12:49:22
date last changed
2017-09-17 09:35:41
@inproceedings{6cc3d7c9-3804-43b4-ac89-38cad28c53bc,
  abstract     = {<p>Wireless capsule endoscopy (WCE) is the prime diagnostic modality for the small-bowel. It consists in a swallowable color camera that enables the visual detection and assessment of abnormalities, without patient discomfort. The localization of the capsule is currently performed in the 3D abdominal space using radiofrequency (RF) triangulation. However, this approach does not provide sufficient information for the localization of the capsule, and therefore for the localization of the detected abnormalities, within the gastrointestinal (GI) lumen. To cope with this problem, we have recently proposed a method for visual tracking of the capsule endoscope (CE). It is based solely on visual features extracted from the captured images during the journey of the CE in the GI tract, enabling therefore visual odometry. Due to lack of ex-vivo or in-vivo ground truth data, the feasibility of that method was assessed using relative measurements in an image-based simulation experiment. In this paper, we make one step forward towards the assessment of the absolute localization capabilities of visual odometry using a calibrated in-vitro experimental setup. The obtained results validate the feasibility of the proposed approach, highlight the difficulty of this complex problem, and reveal the challenges ahead.</p>},
  author       = {Iakovidis, Dimitris K. and Dimas, George and Karargyris, Alexandros and Ciuti, Gastone and Bianchi, Federico and Koulaouzidis, Anastasios and Toth, Ervin},
  booktitle    = {IST 2016 - 2016 IEEE International Conference on Imaging Systems and Techniques, Proceedings},
  isbn         = {9781509018178},
  keyword      = {camera calibration,test benches for measurements,visual odometry,wireless capsule endoscopy},
  language     = {eng},
  month        = {11},
  pages        = {83--87},
  publisher    = {Institute of Electrical and Electronics Engineers Inc.},
  title        = {Robotic validation of visual odometry for wireless capsule endoscopy},
  url          = {http://dx.doi.org/10.1109/IST.2016.7738202},
  year         = {2016},
}