The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B5. Beijing 2008 
5. DISCUSSION AND CONCLUSIONS 
The anticipated problems due to the size of the object, and 
calibration of the camera have been easily overcome. 
Automated photogrammetric procedures were successful 
enough to suggest that these matters are not a problem. 
Photographic problems were encountered. These lay in camera 
manipulation to create a stereo-pair in controlled positions and 
the need for texturisation of the object to permit successful 
feature detection and matching. It was apparent that the texture 
was not as crucial to achieve success as it was to obtain 
acceptable reliability. 
It could be expected that the measurement should be repeatable 
with living teeth by duplicating all the conditions of the 
photography, but operations on an extracted tooth are 
noticeably easier than working with live patients. Because the 
tests were carried out on an extracted tooth, the investigation is 
inconclusive but results are encouraging. 
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