Title
Volume estimation of skin ulcers: Can cameras be as accurate as laser scanners?
Date Issued
01 January 2018
Access level
metadata only access
Resource Type
journal article
Author(s)
Université d’Orléans
Universidad Peruana Cayetano Heredia
Universidad Peruana Cayetano Heredia
Publisher(s)
Springer Netherlands
Abstract
Cavity volume is an important clinical index for the assessment of the healing process and effectiveness of treatment applied on chronic ulcers. Recently, 3D scanners have proven to effectively track ulcer’s volume evolution. However, photogrammetry presents itself as a low cost and portable alternative. We conducted an inter-laboratory comparative study between photogrammetric and 3D scanner-based volume estimation of small skin ulcers. A total of 20 Cutaneous Leishmaniasis ulcers’ virtual models were generated using a commercial laser scanner and a full-HD portable camera. The reconstruction from videos was performed using comercial and open-source software (i.e., Agisoft Photoscan and VisualSFM). The results revealed similar performance with a median deviation of 16.18% and 21.10% (compared to 3DScan-based volume estimation) using VisualSFM and PhotoScan respectively. In addition, both methods proved similar efficiency in the assessment of healing ulcers when compared to 3D-scanner.
Start page
735
End page
744
Volume
27
Scopus EID
2-s2.0-85032383097
Source
Lecture Notes in Computational Vision and Biomechanics
ISSN of the container
22129391
Sponsor(s)
Acknowledgements. The authors would like to thank Ana Saavedra and Julien Rouyer for their assistance in scanning and patient handling. This work was supported by IMPULSO (Image Processing of Skin Ulcers in Tropical Areas) project funded by STIC-AmSud program.
Sources of information:
Directorio de Producción Científica
Scopus