Environmental Monitoring and Assessment

, Volume 134, Issue 1, pp 287–292

Mapping broom snakeweed through image analysis of color-infrared photography and digital imagery

Authors

    • USDA-ARS, Integrated Farming and Natural Resources Research
  • C. Yang
    • USDA-ARS, Integrated Farming and Natural Resources Research
Article

DOI: 10.1007/s10661-007-9619-0

Cite this article as:
Everitt, J.H. & Yang, C. Environ Monit Assess (2007) 134: 287. doi:10.1007/s10661-007-9619-0

Abstract

A study was conducted on a south Texas rangeland area to evaluate aerial color-infrared (CIR) photography and CIR digital imagery combined with unsupervised image analysis techniques to map broom snakeweed [Gutierrezia sarothrae (Pursh.) Britt. and Rusby]. Accuracy assessments performed on computer-classified maps of photographic images from two sites had mean producer’s and user’s accuracies for broom snakeweed of 98.3 and 88.3%, respectively; whereas, accuracy assessments performed on classified maps from digital images of the same two sites had mean producer’s and user’s accuracies for broom snakeweed of 98.3 and 92.8%, respectively. These results indicate that CIR photography and CIR digital imagery combined with image analysis techniques can be used successfully to map broom snakeweed infestations on south Texas rangelands.

Keywords

Color-infrared photographyColor-infrared digital imageryUnsupervised image analysis-accuracy assessmentGutierrezia sarothrae

Copyright information

© Springer Science+Business Media B.V. 2007