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ResNet incorporating the fusion data of RGB & hyperspectral images improves classification accuracy of vegetable soybean freshness

文献类型： 外文期刊

作者： Bu, Yuanpeng 1 ; Hu, Jinxuan 3 ; Chen, Cheng 4 ; Bai, Songhang 3 ; Chen, Zuohui 3 ; Hu, Tianyu 3 ; Zhang, Guwen 1 ; Liu, Na 1 ; Cai, Chang 3 ; Li, Yuhao 3 ; Xuan, Qi 3 ; Wang, Ye 5 ; Su, Zhongjing 3 ; Xiang, Yun 3 ; Gong, Yaming 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Key Lab Vegetable Legumes Germplasm Enhancement, Inst Veg, Hangzhou, Peoples R China

2.Zhejiang Acad Agr Sci, Southern China Minist Agr & Rural Affairs, Hangzhou, Peoples R China

3.Zhejiang Univ Technol, Inst Cyberspace Secur, Hangzhou, Peoples R China

4.Zhejiang Yugong Informat Technol Co Ltd, Hangzhou, Peoples R China

5.Lishui Univ, Fac Engn, Lishui, Peoples R China

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.6； 五年影响因子：4.9 ）

ISSN： 2045-2322

年卷期： 2024 年 14 卷 1 期

页码：

收录情况： SCI

摘要： The freshness of vegetable soybean (VS) is an important indicator for quality evaluation. Currently, deep learning-based image recognition technology provides a fast, efficient, and low-cost method for analyzing the freshness of food. The RGB (red, green, and blue) image recognition technology is widely used in the study of food appearance evaluation. In addition, the hyperspectral image has outstanding performance in predicting the nutrient content of samples. However, there are few reports on the research of classification models based on the fusion data of these two sources of images. We collected RGB and hyperspectral images at four different storage times of VS. The ENVI software was adopted to extract the hyperspectral information, and the RGB images were reconstructed based on the downsampling technology. Then, the one-dimensional hyperspectral data was transformed into a two-dimensional space, which allows it to be overlaid and concatenated with the RGB image data in the channel direction, thereby generating fused data. Compared with four commonly used machine learning models, the deep learning model ResNet18 has higher classification accuracy and computational efficiency. Based on the above results, a novel classification model named ResNet-R &H, which is based on the residual networks (ResNet) structure and incorporates the fusion data of RGB and hyperspectral images, was proposed. The ResNet-R &H can achieve a testing accuracy of 97.6%, which demonstrates a significant enhancement of 4.0% and 7.2% compared to the distinct utilization of hyperspectral data and RGB data, respectively. Overall, this research is significant in providing a unique, efficient, and more accurate classification approach in evaluating the freshness of vegetable soybean. The method proposed in this study can provide a theoretical reference for classifying the freshness of fruits and vegetables to improve classification accuracy and reduce human error and variability.

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