Optical, noncontact, automated experimental techniques for three-dimensional reconstruction of object surfaces using projection moire, stereo imaging, and phase-measuring profilometry
Three optical, noncontact, automated experimental techniques for determining the topography of object surfaces were assessed. The main objective was to test the limitations of three experimental techniques: projection moire, stereo imaging, and phase-measuring profilometry. Phase-measuring profilometry is the most promising of the three techniques for mapping rock fracture surfaces automatically, accurately, quickly, and with high resolution. The experimental set-ups used to assess these different techniques are similar, and they require essentially the same equipment. It is relatively easy and inexpensive to go from one experimental set-up to another. Also, the experience gained in implementing one experimental technique is often applicable in another, although the basic principles of each experimental technique are sometimes very dissimilar.
- Research Organization:
- Geological Survey, Alexandria, VA (United States)
- Sponsoring Organization:
- Geological Survey, Reston, VA (United States)
- DOE Contract Number:
- AI08-92NV10874
- OSTI ID:
- 653991
- Report Number(s):
- USGS-OFR-95-433; ON: DE98005232; TRN: AHC2DT05%%73
- Resource Relation:
- Other Information: PBD: 20 Jan 1996
- Country of Publication:
- United States
- Language:
- English
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