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An Improved Inception Network to classify black tea appearance quality

文献类型： 外文期刊

作者： Guo, Jiaming 1 ; Liang, Jianhua 1 ; Xia, Hongling 2 ; Ma, Chengying 2 ; Lin, Jicheng 1 ; Qiao, Xiaoyan 2 ;

作者机构： 1.South China Agr Univ, Coll Engn, Guangzhou 510642, Peoples R China

2.Guangdong Acad Agr Sci, Tea Res Inst, Guangdong Prov Key Lab Tea Plant Resources Innovat, Guangzhou 510640, Peoples R China

关键词： Tea appearance; Computer vision; Deep learning; Black tea

期刊名称：JOURNAL OF FOOD ENGINEERING （ 影响因子：5.5； 五年影响因子：5.7 ）

ISSN： 0260-8774

年卷期： 2024 年 369 卷

页码：

收录情况： SCI

摘要： To conveniently and precisely evaluate orthodox black tea appearance quality, we here present a novel method based on computer vision integrated image processing and deep learning. Tea images were collected using the custom-built image acquisition device and processed with Adaptive Local Tone Mapping (ALTM), and Unsharp Masking to optimize illumination and sharpness. These images were then used to train six convolutional neural networks (CNNs) to find suitable network structure by transfer learning. It was found that the CNNs constructed with the MBconv modules had better performance in this task. Consequently, a CNN classification model (Improved Inception Network) based on the MBconv modules was constructed and trained, which yielded a test accuracy of 95%, performed better than the other CNNs; the test accuracy of original Inception V3 was 89%. The proposed method obtained 97.22% accuracy for independent set in validation, which demonstrated the viability of applying image processing and deep learning approaches to solve practical problems in the field of tea assessment.

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