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基于SVM和D—S證據(jù)理論的多特征融合雜草識(shí)別方法
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鹽城工學(xué)院重點(diǎn)建設(shè)學(xué)科開(kāi)放基金資助項(xiàng)目(XKY2010021);江蘇大學(xué)現(xiàn)代農(nóng)業(yè)裝備與技術(shù)省部共建教育部重點(diǎn)實(shí)驗(yàn)室開(kāi)放基金資助項(xiàng)目(NZ200709)


Method of Multi-feature Fusion Based on SVM and D—S Evidence Theory in Weed Recognition
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    摘要:

    針對(duì)單一特征識(shí)別雜草的低準(zhǔn)確率和低穩(wěn)定性,,提出一種支持向量機(jī)(SVM)和D—S證據(jù)理論相結(jié)合的多特征融合雜草識(shí)別方法,。在對(duì)田間植物圖像處理的基礎(chǔ)上,提取植物葉片的顏色,、形狀和紋理等3類(lèi)視覺(jué)特征,,分別以3類(lèi)單特征的SVM分類(lèi)結(jié)果作為獨(dú)立證據(jù)構(gòu)造基本概率指派(BPA),,運(yùn)用D—S證據(jù)組合規(guī)則進(jìn)行決策級(jí)融合,根據(jù)分類(lèi)判決門(mén)限給出最終的識(shí)別結(jié)果,。試驗(yàn)結(jié)果表明,多特征決策融合識(shí)別方法正確識(shí)別率達(dá)到97%以上,。

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    According to the low accuracy and low stability of the single feature-based method for weed recognition, a multi-feature fusion method based on SVM and D—S evidence theory was proposed. Firstly, three types of visual features such as color, shape and texture were extracted from the plant leaves after a series of image processing. Then, the plants were classified according to each type of features utilizing SVM and the results were used as evidences to construct the basic probability assignment (BPA). Finally, using D—S combination rule of evidence to achieve the decision fusion and giving final recognition results by classification thresholds. The experimental results show that the accuracy of multi-feature fusion method is over 97% and it has good performance on accuracy and stability compared to the single feature-based method in weed recognition.

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李先鋒,朱偉興,孔令東,花小朋.基于SVM和D—S證據(jù)理論的多特征融合雜草識(shí)別方法[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2011,42(11):164-168,163. Li Xianfeng, Zhu Weixing, Kong Lingdong, Hua Xiaopeng. Method of Multi-feature Fusion Based on SVM and D—S Evidence Theory in Weed Recognition[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(11):164-168,163.

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