Measurement at very close range using microscope photogrammetry

H. L. Mitchell, R. G. Chadwick, J. F. McCabe

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

This paper describes the use of photogrammetric for the measurement of objects only a few millimetres in size by using a 35 mm camera in conjunction with a stereoscopic microscope. It is intended not only to point out the attractiveness of the camera-microscope combination in very close-range measurements, but also to illustrate the successful development of a simple observing and computing routine despite the initial lack of any data about the camera-microscope system. The approach, which utilises a stereocomparator and a few elementary equations, demonstrates the advantage gained in close-range photogrammetric by the calibration of a number of parameters. The technique was successful in measuring depths on objects to precisions of 0.01 mm.

Original languageEnglish
Pages (from-to)463-471
Number of pages9
JournalAustralian Surveyor
Volume34
Issue number5
DOIs
Publication statusPublished - 1989

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