Tuesday, 8 November 2005
14

An Objective Model for Quantifying Turfgrass Texture.

Siddhartha Narra1, Thomas W. Fermanian1, Thomas B. Voigt1, and Tony E. Grift2. (1) Dept. of Natural Resources and Environmental Sciences, University of Illinois at Urbana-Champaign, 1102 S Goodwin Ave, W-417 Turner Hall, Urbana, IL 61801, (2) Dept. of Agricultural Engineering, University of Illinois at Urbana-Champaign, 1304 W Pennsylvania Ave, 360 AESB, Urbana, IL 61801

This paper presents an objective model for quantifying turfgrass texture using computer vision techniques. Different image processing and analysis procedures developed as part of this objective model were applied to high-resolution digital images collected from existing National Turfgrass Evaluation Program trials (Urbana, IL) of perennial ryegrass and Kentucky bluegrass cultivars. The accuracy and consistency of texture measurements evaluated using this model will be discussed in relation to subjective texture assessment of different cultivars.

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