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,商德胜,应义斌,廖宜涛.基于核磁共振成像的水果轻微损伤识别[J].农业机械学报,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.