Journal
COMPUTERS AND ELECTRONICS IN AGRICULTURE
Volume 125, Issue -, Pages 48-55Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compag.2016.04.032
Keywords
Soybean disease recognition; Local descriptors; Bag-of-visual-words; Computer vision
Funding
- PET-Fronteira
- CAPES
- CNPq
- FUNDECT
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The detection of diseases is of vital importance to increase the productivity of soybean crops. The presence of the diseases is usually conducted visually, which is time-consuming and imprecise. To overcome these issues, there is a growing demand for technologies that aim at early and automated disease detection. In this line of work, we introduce an effective (over 98% of accuracy) and efficient (an average time of 0.1 s per image) method to computationally detect soybean diseases. Our method is based on image local descriptors and on the summarization technique Bag of Visual Words. We tested our approach on a data set composed of 1200 scanned soybean leaves considering healthy samples, and samples with evidence of three diseases commonly observed in soybean crops - Mildew, Rust Tan, and Rust RB. The experimental results demonstrated the accuracy of the proposed approach and suggested that it can be easily applied to other kinds of crops. (C) 2016 Elsevier B.V. All rights reserved.
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