Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/13546
Title: A webcam-based photogrammetric system for the measurement of facial landmarks on newborns
Authors: King, B 
Issue Date: 2012
Publisher: American Society for Photogrammetry and Remote Sensing
Source: Photogrammetric engineering and remote sensing, 2012, v. 78, no. 12, p. 1285-1294 How to cite?
Journal: Photogrammetric engineering and remote sensing 
Abstract: A photogrammetric system of four webcams was developed to acquire craniofacial measurements of newborn babies. The errors between a set of photogrammetrically-derived measurements on a clinical mannequin with those made by an experienced nursing sister were found to be negligible (less than 0.5 mm) at the 5 percent level of significance. The four cameras were individually calibrated and the parameters and distortion patterns compared. To assess the impact of camera calibration, the validation imagery was also processed with both average and nominal calibration parameter sets. It was found that the average parameter set produced measurement errors similar to those produced by the individual calibrations, but using the nominal calibration set produced less accurate measurements. The project demonstrates that a low-cost photogrammetric system is as accurate as manual measurements and at the same time provides a safe, non-contact measurement environment and a visual record of the subjects.
URI: http://hdl.handle.net/10397/13546
ISSN: 0099-1112
EISSN: 2374-8079
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

Page view(s)

27
Last Week
1
Last month
Checked on Jul 9, 2017

Google ScholarTM

Check



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.