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基于核磁共振成像的水果輕微損傷識(shí)別
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Detecting Subtle Bruises on Fruits with Nuclear Magnetic Resonance Imaging
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    摘要:

    以鴨梨為對(duì)象，采用核磁共振成像設(shè)備掃描獲得輕微損傷鴨梨冠狀面圖像，使用Matlab軟件完成圖像預(yù)處理，采用自動(dòng)閾值分割目標(biāo)區(qū)域，并提取鴨梨層切面邊界，最后采用角點(diǎn)檢測(cè)方法檢測(cè)鴨梨是否有輕微損傷。實(shí)驗(yàn)結(jié)果表明，核磁共振成像技術(shù)對(duì)水果輕微損傷的檢測(cè)精度達(dá)92.1%，對(duì)正常和畸形水果的檢測(cè)精度達(dá)

    Abstract:

    100%。The nuclear magnetic resonance(NMR) imaging was proposed to detect the subtle bruises on fruits. Chinese pears were selected as the experimental object. The nuclear magnetic resonance images of pears were acquired by horizontal scanning mode. Image processing, which included auto thresh segmentation, morphologic operation and boundary extraction was finished by Matlab software. At last the corner detection was used to determine whether the pear had subtle bruises. Experimental results showed that detecting subtle bruises on fruits with NMR technique was feasible. The accuracy of detection for subtle bruises and other pears was 92.1% and 100%, respectively.

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周水琴,商德勝,應(yīng)義斌,廖宜濤.基于核磁共振成像的水果輕微損傷識(shí)別[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2010,41(8):107-110.Detecting Subtle Bruises on Fruits with Nuclear Magnetic Resonance Imaging[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(8):107-110.

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