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Detection of Fundamental Quality Traits of Winter Jujube Based on Computer Vision and Deep Learning

文献类型： 外文期刊

作者： Ban, Zhaojun 1 ; Fang, Chenyu 1 ; Liu, Lingling 1 ; Wu, Zhengbao 2 ; Chen, Cunkun 3 ; Zhu, Yi 4 ;

作者机构： 1.Zhejiang Univ Sci & Technol, Sch Biol & Chem Engn, Zhejiang Prov Key Lab Chem & Biol Proc Technol Far, Hangzhou 310023, Peoples R China

2.Xinjiang Acad Forestry Sci, Econ Forest Res Inst, Urumqi 830000, Peoples R China

3.Tianjin Acad Agr Sci, Natl Engn Technol Res Ctr Preservat Agr Prod, Inst Agr Prod Preservat & Proc Technol, Tianjin 300384, Peoples R China

4.Aksu Youneng Agr Technol Co Ltd, Aksu 843001, Peoples R China

关键词： deep learning; winter jujube; fundamental quality; maturity grading; convolutional neural network

期刊名称：AGRONOMY-BASEL （ 影响因子：3.7； 五年影响因子：4.0 ）

ISSN：

年卷期： 2023 年 13 卷 8 期

页码：

收录情况： SCI

摘要： Winter jujube (Ziziphus jujuba Mill. cv. Dongzao) has been cultivated in China for a long time and has a richly abundant history, whose maturity grade determined different postharvest qualities. Traditional methods for identifying the fundamental quality of winter jujube are known to be time-consuming and labor-intensive, resulting in significant difficulties for winter jujube resource management. The applications of deep learning in this regard will help manufacturers and orchard workers quickly identify fundamental quality information. In our study, the best fundamental quality of winter jujube from the correlation between maturity and fundamental quality was determined by testing three simple physicochemical indexes: total soluble solids (TSS), total acid (TA) and puncture force of fruit at five maturity stages which classified by the color and appearance. The results showed that the fully red fruits (the 4th grade) had the optimal eating quality parameter. Additionally, five different maturity grades of winter jujube were photographed as datasets and used the ResNet-50 model and the iResNet-50 model for training. And the iResNet-50 model was improved to overlap double residuals in the first Main Stage, with an accuracy of 98.35%, a precision of 98.40%, a recall of 98.35%, and a F1 score of 98.36%, which provided an important basis for automatic fundamental quality detection of winter jujube. This study provided ideas for fundamental quality classification of winter jujube during harvesting, fundamental quality screening of winter jujube in assembly line production, and real-time monitoring of winter jujube during transportation and storage.

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