Optical, noncontact, automated experimental techniques for three-dimensional reconstruction of object surfaces using projection moire, stereo imaging, and phase-measuring profilometry

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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 ... continued below

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4 p.

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Cardenas-Garcia, J.F. & Severson, G.R. January 20, 1996.

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Description

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.

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4 p.

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OSTI as DE98005232

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  • Other Information: PBD: 20 Jan 1996

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  • Other: DE98005232
  • Report No.: USGS-OFR--95-433
  • Grant Number: AI08-92NV10874
  • DOI: 10.2172/653991 | External Link
  • Office of Scientific & Technical Information Report Number: 653991
  • Archival Resource Key: ark:/67531/metadc702962

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  • January 20, 1996

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  • Sept. 12, 2015, 6:31 a.m.

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Cardenas-Garcia, J.F. & Severson, G.R. Optical, noncontact, automated experimental techniques for three-dimensional reconstruction of object surfaces using projection moire, stereo imaging, and phase-measuring profilometry, report, January 20, 1996; United States. (digital.library.unt.edu/ark:/67531/metadc702962/: accessed December 12, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.