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Proceedings Paper

Using image analysis to develop reference standards for the video trashmeter
Author(s): Devron P. Thibodeaux; Janice P. Evans
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Paper Abstract

Results of research to develop a reference method for calibrating standard dot image tiles and cotton trash boxes are reported. The tiles and trash boxes are produced by the Agricultural Marketing Service for use in standardizing HVI Video Trashmeters. The reference method involves use of a highly sensitive image analysis system (the Quantimet 970) to measure the number and percent area fraction of particle images produced on the replica tiles or of real trash particles placed on the surface of cotton incased in plastic boxes. Calibration data for a set of tiles and boxes is presented. The effects of magnification (system resolution) and detection threshold are investigated as related to measurement accuracy.

Paper Details

Date Published: 6 January 1995
PDF: 8 pages
Proc. SPIE 2345, Optics in Agriculture, Forestry, and Biological Processing, (6 January 1995); doi: 10.1117/12.198872
Show Author Affiliations
Devron P. Thibodeaux, USDA Agricultural Research Service (United States)
Janice P. Evans, USDA Agricultural Research Service (United States)


Published in SPIE Proceedings Vol. 2345:
Optics in Agriculture, Forestry, and Biological Processing
George E. Meyer; James A. DeShazer, Editor(s)

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