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Spatial and Spectral Methods for Weed Detection and Localization


This study concerns the detection and localization of weed patches in order to improve the knowledge on weed-crop competition. A remote control aircraft provided with a camera allowed to obtain low cost and repetitive information. Different processings were involved to detect weed patches using spatial then spectral methods. First, a shift of colorimetric base allowed to separate the soil and plant pixels. Then, a specific algorithm including Gabor filter was applied to detect crop rows on the vegetation image. Weed patches were then deduced from the comparison of vegetation and crop images. Finally, the development of a multispectral acquisition device is introduced. First results for the discrimination of weeds and crops using the spectral properties are shown from laboratory tests. Application of neural networks were mostly studied.

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Correspondence to Jean-Baptiste Vioix.

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Vioix, JB., Douzals, JP., Truchetet, F. et al. Spatial and Spectral Methods for Weed Detection and Localization. EURASIP J. Adv. Signal Process. 2002, 793080 (2002).

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