Document Type : Original Article

Abstract

Variations in lighting are a problem for visual systems. In the current research, a new thresholding method using a 3D Euclidian elliptical surface was defined and applied for plant detection purposes. The results showed that this method had lower type I error, type II error, total error and mean square error compared with those of conventional segmentation methods. The method was evaluated for detection of cabbage and lettuce from images. The results showed the proposed method located cabbages in the images with 85.26% accuracy. When the proposed method was combined with image-based shape features it identified lettuce from the images at 66.67% accuracy.

Keywords

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