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Research on an Improved Non-Destructive Detection Method for the Soluble Solids Content in Bunch-Harvested Grapes Based on Deep Learning and Hyperspectral Imaging

文献类型： 外文期刊

作者： Zhao, Junhong 1 ; Hu, Qixiao 3 ; Li, Bin 1 ; Xie, Yuming 1 ; Lu, Huazhong 2 ; Xu, Sai 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Inst Agr, Guangzhou 510640, Peoples R China

2.Guangdong Lab Lingnan Modern Agr, Guangzhou 510640, Peoples R China

3.South China Agr Univ, Coll Engn, Guangzhou 510642, Peoples R China

4.Guangdong Acad Agr Sci, Guangzhou 510640, Peoples R China

关键词： grape; bunch-harvested; hyperspectral imaging; deep learning; non-destructive detection

期刊名称：APPLIED SCIENCES-BASEL （ 影响因子：2.7； 五年影响因子：2.9 ）

ISSN：

年卷期： 2023 年 13 卷 11 期

页码：

收录情况： SCI

摘要： The soluble solids content (SSC) is one of the important evaluation indicators for the internal quality of fresh grapes. However, the current non-destructive detection method based on hyperspectral imaging (HSI) relies on manual operation and is relatively cumbersome, making it difficult to achieve automatic detection in batches. Therefore, in this study, we aimed to conduct research on an improved non-destructive detection method for the SSC of bunch-harvested grapes. This study took the Shine-Muscat grape as the research object. Using Mask R-CNN to establish a grape image segmentation model based on deep learning (DL) applied to near-infrared hyperspectral images (400 similar to 1000 nm), 35 characteristic wavelengths were selected using Monte Carlo Uninformative Variable Elimination (MCUVE) to establish a prediction model for SSC. Based on the two abovementioned models, the improved non-destructive detection method for the SSC of bunch-harvested grapes was validated. The comprehensive evaluation index F-1 of the image segmentation model was 95.34%. The R-m(2) and RMSEM of the SSC prediction model were 0.8705 and 0.5696 Brix%, respectively, while the R-p(2) and RMSEP were 0.8755 and 0.9177 Brix%, respectively. The non-destructive detection speed of the improved method was 16.6 times that of the existing method. These results prove that the improved non-destructive detection method for the SSC of bunch-harvested grapes based on DL and HSI is feasible and efficient.

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