【摘要】：水稻品種識(shí)別能有效防御假冒偽劣種子,提高水稻種子純度。利用激光誘導(dǎo)擊穿光譜,采用BP神經(jīng)網(wǎng)絡(luò)對(duì)水稻種子進(jìn)行了類型識(shí)別研究。當(dāng)波長(zhǎng)范圍為222.054nm至849.019nm的全譜數(shù)據(jù)為BP神經(jīng)網(wǎng)絡(luò)的輸入值時(shí),其識(shí)別率為91.2%。將全譜數(shù)據(jù)進(jìn)行去噪后,其識(shí)別率提高到96.4%。采用分段光譜進(jìn)行識(shí)別時(shí),識(shí)別率降低且各段的識(shí)別率相差較大,但其識(shí)別所用時(shí)間大大減小。采用適當(dāng)?shù)姆侄喂庾V組合識(shí)別時(shí),能提高其識(shí)別率,其識(shí)別率可達(dá)到92.4%,超過了全譜去噪前的識(shí)別率,而識(shí)別所用時(shí)間遠(yuǎn)小于全譜識(shí)別所用時(shí)間。結(jié)果表明:利用適當(dāng)?shù)姆侄谓M合激光誘導(dǎo)擊穿光譜對(duì)水稻品種進(jìn)行識(shí)別時(shí),能在較短的時(shí)間內(nèi)達(dá)到滿意的識(shí)別效果。
[Abstract]:The identification of rice varieties can effectively prevent fake and inferior seeds and improve the purity of rice seeds. The classification of rice seeds was studied by using the laser induced breakdown spectrum and BP neural network. When the full spectrum data from 222.054nm to 849.019nm is the input value of BP neural network, the recognition rate is 91.2. After denoising the whole spectrum data, the recognition rate is increased to 96. 4%. When segmented spectrum is used, the recognition rate decreases and the recognition rate varies greatly, but the recognition time is greatly reduced. The recognition rate can be improved by using the appropriate piecewise spectral combination, and the recognition rate can reach 92.4, which exceeds the recognition rate before the full-spectrum denoising, and the recognition time is much smaller than that of the full-spectrum recognition. The results showed that the suitable combination of laser induced breakdown spectra could be used to identify rice varieties in a short time.
【作者單位】： 長(zhǎng)江大學(xué)物理與光電工程學(xué)院;
【基金】：荊州市科技發(fā)展計(jì)劃項(xiàng)目(2015AB35) 長(zhǎng)江大學(xué)大學(xué)生創(chuàng)新創(chuàng)業(yè)訓(xùn)練計(jì)劃項(xiàng)目資助(20150100)
【分類號(hào)】：S511;TN249

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本文編號(hào)：2158196