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Photogrammetric Capabilities of the Kodak DC40, DCS420 and DCS460 Digital Cameras

Photogrammetric Capabilities of the Kodak DC40, DCS420 and DCS460 Digital Cameras The aim of this study is to assess the impact of sensor size and resolution of different digital camera sensors upon the accuracy and precision of three dimensional data derived by photogrammetry. Kodak DC40, DCS420 and DCS460 digital cameras were used to produce digital images of retroreflective targets in a 4 m three dimensional test field. The image locations of the targeted points were automatically measured using an off the shelf image processing software package. Two different sub‐pixel measurement approaches were examined: centre of gravity and weighted mean. From the automated sub‐pixel measurement of the targeted points, results indicate that the high resolution DCS460 camera produces optimum results using either the weighted mean or centre of gravity approaches. Although this was perhaps expected, the far lower resolution DC40 camera performed better than was originally anticipated, suggesting potential for the cheaper DC40 for many applications. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Photogrammetric Record Wiley

Photogrammetric Capabilities of the Kodak DC40, DCS420 and DCS460 Digital Cameras

The Photogrammetric Record , Volume 16 (94) – Oct 1, 1999

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References (49)

Publisher
Wiley
Copyright
1999 Blackwell Publishing and the Remote Sensing and Photogrammetic Society
ISSN
0031-868X
eISSN
1477-9730
DOI
10.1111/0031-868X.00141
Publisher site
See Article on Publisher Site

Abstract

The aim of this study is to assess the impact of sensor size and resolution of different digital camera sensors upon the accuracy and precision of three dimensional data derived by photogrammetry. Kodak DC40, DCS420 and DCS460 digital cameras were used to produce digital images of retroreflective targets in a 4 m three dimensional test field. The image locations of the targeted points were automatically measured using an off the shelf image processing software package. Two different sub‐pixel measurement approaches were examined: centre of gravity and weighted mean. From the automated sub‐pixel measurement of the targeted points, results indicate that the high resolution DCS460 camera produces optimum results using either the weighted mean or centre of gravity approaches. Although this was perhaps expected, the far lower resolution DC40 camera performed better than was originally anticipated, suggesting potential for the cheaper DC40 for many applications.

Journal

The Photogrammetric RecordWiley

Published: Oct 1, 1999

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