Access the full text.
Sign up today, get DeepDyve free for 14 days.
Loading next page...
/lp/wiley/assessment-of-weed-density-at-an-early-stage-by-use-of-image-04kjxw0oig
References (13)
-
R. Gerhards, A. Nabout, M. Sökefeld, W. Kühbauch, H. Eldin (1993)
Automatische Erkennung von zehn Unkrautarten mit Hilfe digitaler Bildverarbeitung und FouriertransformationJournal of Agronomy and Crop Science, 171
-
R. Jansen, K. Reinink, G. Heijden (1993)
Analysis of grey level histograms by using statistical methods for mixtures of distributionsPattern Recognit. Lett., 14
-
Petry Petry, Kuhbauch Kuhbauch (1989)
Automatisierie Unterscheidung von Unkrautarten nach Formparametern mit Hilfe der quantitativen BildanalyseJournal of Agronomy and Crap Science, 163
-
M. Paice, P. Miller, J. Bodle (1995)
An Experimental Sprayer for the Spatially Selective Application of HerbicidesJournal of Agricultural Engineering Research, 60
-
Box Box, Cox Cox (1964)
An analysis of trsnsformationsJournal of the Royal Statistical Society Series B, 16
-
C. Andreasen, H. Stryhn, J. Streibig (1996)
Decline of the flora in Danish arable fieldsJournal of Applied Ecology, 33
-
P. Sahoo, S. Soltani, Andrew Wong (1988)
A survey of thresholding techniquesComput. Vis. Graph. Image Process., 41
-
J. Streibig, J. Combellack, G. Pritchard, R. Richardson (1989)
Estimation of thresholds for weed control in Australian cerealsWeed Research, 29
-
C. Glasbey (1993)
An Analysis of Histogram-Based Thresholding AlgorithmsCVGIP Graph. Model. Image Process., 55
-
Daniel Guyer, G. Miles, M. Schreiber, O. Mitchell, V. Vanderbilt (1986)
MACHINE VISION AND IMAGE PROCESSING FOR PLANT IDENTIFICATION.Transactions of the ASABE, 29
-
Guyer Guyer, Miles Miles, Scureiber Scureiber, Mitchell Mitchell, Vanderbilt Vanderbilt (1986)
Machine vision and image processing for plant identificationTransactions of the American Society of Agricultural Engineering, 29
-
J. Thompson, J. Stafford, P. Miller (1991)
Potential for automatic weed detection and selective herbicide applicationCrop Protection, 10
-
Horgan Horgan, Talbot Talbot, Davey Davey (1995)
Plant variety colour assessment using a still video cameraPlant Varieties and Seeds, 6
- Publisher
- Wiley
- Copyright
- Copyright © 1997 Wiley Subscription Services, Inc., A Wiley Company
- ISSN
- 0043-1737
- eISSN
- 1365-3180
- DOI
- 10.1111/j.1365-3180.1997.tb01817.x
- Publisher site
- See Article on Publisher Site
Abstract
Summary Identification of plants against a soil background using colour images is discussed, and a technique is presented for finding plant segments consisting of crop or weed plants, or both. The problems of overlapping plants and image border effects are explored using techniques developed in stereology. An automatic weed density estimation method is proposed, based on a non–linear regression model and features of the plant segments in an image. The method is applied to a set of images from five barley fields. At present two features of the segments are used: segment area and whether a segment cuts the image border or not. Further, a method is suggested for evaluating the automatic weed density estimation by comparison with an interactive weed density estimator including human judgement. Critical factors and ways of improving the automatic method by including additional features are discussed.
Journal
Weed Research – Wiley
Published: Feb 1, 1997