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Changsha University of Science and Technology
Apple; surface defect detection; recognize; stem/calyx; DT-SVM
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Full-Text Articles in Life Sciences
Detection On Surface Defect Of Apples By Dt-Svm Method, Qiu Guangying, Peng Guilan, Tao Dan, Wang Zhengrong
Detection On Surface Defect Of Apples By Dt-Svm Method, Qiu Guangying, Peng Guilan, Tao Dan, Wang Zhengrong
Food and Machinery
During the process of apple blemish detection based on machine vision technology, due to the color similarity between stem/calyx and blemish, which greatly decreases the accuracy in apple detection, a method was proposed based on Decision Tree-Support vector machine (DT-SVM) to solve the challenge problem. Firstly, the single threshold method is used to remove the background. Then in the R channel, Connected Component Labeling method and Otsu method were employed to extract object regions (stem, calyx, blemish)，which were used to compute the color, texture and shape features. In the end, adopted the DT-SVM method to distinguish blemishes from the stem …