【摘要】：選取干燥后的三七主根樣本110個,運用計算機視覺技術(shù)獲取三七主根樣本圖像,對圖像進(jìn)行灰度化、二值化以及形態(tài)學(xué)運算,提取長、寬、投影面積等特征值。結(jié)果表明,三七主根的形狀可分為錐形和瘤形,分別對2種主根建立投影面積和質(zhì)量的關(guān)系預(yù)測模型,三七主根的質(zhì)量和投影面積呈線性相關(guān),錐形三七主根與瘤形三七主根投影面積和質(zhì)量預(yù)測模型的決定系數(shù)R2分別為0.984 9和0.986 6。采用十折交叉驗證法對質(zhì)量預(yù)測模型進(jìn)行驗證,錐形三七主根質(zhì)量誤差均值0.334 8 g;瘤形三七主根質(zhì)量誤差均值0.494 9 g。
[Abstract]:In this paper, 110 samples of main root of Panax notoginseng after drying are selected, and the image of main root of Panax notoginseng is obtained by computer vision technology. The image is grayscale, binarized and morphologically calculated, and the characteristic values such as length, width and projected area are extracted. The results showed that the shape of the main root of Panax notoginseng could be divided into conical and nodular shapes. The relationship between projection area and mass was established for the two main roots, and there was a linear correlation between the mass and projection area of the main root of Panax notoginseng. The determination coefficient R2 of projection area and mass prediction model of main root of Panax notoginseng and Notoginseng notoginseng are 0.984 9 and 0.986 6, respectively. The method of 10 fold cross validation was used to verify the quality prediction model. The mean value of mass error of the main root of Panax notoginseng was 0.334 8 g, and that of the main root of notoginseng was 0.494 9 g.
【作者單位】： 昆明理工大學(xué)現(xiàn)代農(nóng)業(yè)工程學(xué)院;昆明理工大學(xué)工程訓(xùn)練中心;
【基金】：國家自然科學(xué)基金項目(11226220) 云南省科學(xué)技術(shù)廳項目(2010ZC028)
【分類號】：R284.1;TP391.41

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