基于K-means-RBF的鸡肉品质分类方法研究
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(北京工商大学 食品安全大数据技术北京市重点实验室/计算机与信息工程学院, 北京 100048)

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邢素霞,女,副教授,博士,主要从事高光谱成像与食品安全检测方面的研究。

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国家自然科学基金资助项目(61473009);北京市自然科学基金资助项目(4122020);北京工商大学两科培育基金资助项目(19008001270)。


Study on Chicken Quality Classification Method Based on K-Means-RBF
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(Beijing Key Laboratory of Big Data Technology for Food Safety/School of Computer and Information Engineering, Beijing Technology and Business University, Beijing 100048, China)

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    摘要:

    鸡肉在贮藏和运输过程中容易腐败变质,利用高光谱成像技术的图、谱合一特点,同时获取鸡肉的光谱特征和纹理、颜色特征,通过鸡肉的内在特征与外在特征综合实现鸡肉品质快速分类。制备62份鸡胸肉样品,通过理化分析分为放心食用、可食用、不建议食用和不可食用4类;以已知分类结果的42个样品作为训练集,将纹理、颜色、光谱特征作为K-means-RBF神经网络的输入,确定K-means初始分类中心、训练RBF神经网络,构建K-means-RBF鸡肉品质分类模型,并利用剩余20个样品作为测试集,对K-means-RBF鸡肉品质分类模型进行测试。测试结果显示,通过训练后的K-means-RBF神经网络对20个测试集样品的分类正确率达到100%;而分别采用纹理、颜色和纹理颜色综合特征作为输入建立的分类器,正确率分别为85%、80%、95%。鸡肉品质分类成功利用了高光谱成像技术“图谱合一”的特点,实现了鸡肉品质的综合检测,验证了K-means-RBF融合方法在高光谱数据分析中的有效性,及单一特征在分类中的局限性。

    Abstract:

    The chicken is easy to get spoilage during the storage and transportation. The hyperspectral imaging technology with the maps and spectral combination features was applied in this study, which could extract the spectral characteristics, texture and color characteristics to realize the rapid classification from the intrinsic quality and external qualities of the chicken. First of all, according to the physical and chemical analysis, 62 chicken breast samples were divided into four categories which are safe, edible, not recommended, and inedible. Secondly, using 42 labeled samples as the training set, texture, color, and spectral features were taken as the input of K-means-RBF neural network to identify the K-means initial classification center, train the RBF neural network, and construct the K-means-RBF chicken quality classification model. K-means-RBF chicken quality classification model was tested using the remaining 20 samples as test sets. The test results showed that the accuracy of the classification of 20 test samples was 100%. However, the classification accuracies of texture feature, color feature and texture color were 85%, 80%, and 95%, respectively. The chicken quality classification has successfully utilized the feature of hyperspectral imaging “map and spectral combination”, and the comprehensive detection of chicken has been successfully achieved. The results show that the K-means-RBF fusion method is effective in the hyperspectral data analysis, and the limitation of single feature in classification.

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邢素霞,王九清,陈思,王睿.基于K-means-RBF的鸡肉品质分类方法研究[J].食品科学技术学报,2018,36(4):93-99.

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  • 收稿日期:2017-11-22
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  • 在线发布日期: 2018-07-16
  • 出版日期: 2018-07-25
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