Jinyou Hu’s research while affiliated with China Agricultural University and other places

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Publications (18)


Facile and Rapid Fabrication of Wearable Sensing Patch via Laser-based Reduction Graphene Oxide for Temperature and Respiration Tracking
  • Article

June 2025

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12 Reads

Sensors and Actuators A Physical

Maosong Yin

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Haitao Deng

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[...]

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Jinyou Hu

Classification survey of jujube defects. (a) Common phenotypic defects; (b) detection methods; (c) necessity of jujube defect detection; (d) directions for optimizing classification models.
Architectural diagram of the abnormal phenotype detection system.
Principles of image processing and modeling. (a) Structure of image acquisition device. (b) Physical implementation of the image acquisition device. (c) Schematic of RGB color space. (d) Schematic of HSI color space. (e) Schematic diagram of the improved segmented linear transformation method. (f) Schematic diagram of the minimum outer circle of the maximum horizontal diameter surface.
Color space conversion results.
Results of image preprocessing. (a) Image denoising. (b) S‐component grayscale histogram. (c) Image of dried jujube after background removal. (d) S‐component grayscale image after background removal. (e) S‐component grayscale image after segmented linear transformation. (f) Simple threshold segmentation. (g) Edge detection and morphological processing. (h) Binary image of the defective area. (i) Color images of defective areas generated using image synthesis.

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Abnormal phenotypic defects detection of jujube using explainable machine learning enhanced computer vision
  • Article
  • Publisher preview available

September 2024

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48 Reads

Jujube is susceptible to biotic and abiotic adversity stresses resulting in abnormal phenotypic defects. Therefore, abnormal phenotype fruits should be removed during postharvest sorting to increase added value. An improved maximum horizontal diameter linear regression (MHD‐LR) method for size grading of jujube prior to detection of abnormal phenotypic defects was developed. The accuracy of the MHD‐LR model is 95%, with an error of only 0.95 mm. In addition, a method for detecting abnormal phenotypic defects in jujube was established. It can effectively and accurately classify seven kinds of jujube phenotypes (regular, irregular, wrinkled, moldy, hole‐broken, skin‐broken, and scarred). The data augmentation method based on linear interpolation can effectively expand the dataset with a variance of only 0.0006. Support vector machine‐decision tree (SVMDT), logistic regression, back propagation neural network, and long short‐term memory network models were established to classify jujube samples with different phenotypes, with accuracies of 99.57%, 99.00%, 99.14%, and 99.29%, respectively. The results showed that the SVMDT model had higher accuracy and explainability. This research is expected to provide a new method to improve the precise classification of abnormal phenotypic defects in postharvest jujube.

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Information fusion enabled system for monitoring the vitality of live crabs during transportation

September 2023

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102 Reads

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10 Citations

Biosystems Engineering

Information fusion modeling HACCP Crabs have a high nutritional and economic value and there is an increased demand for live crabs. However, live crabs have limited shelf life and they are susceptibility to death and spoilage during transportation. Monitoring live crab vitality during transportation in the supply chain to meet consumer acceptability is vital. In this study, an information fusion enabled live crab viability monitoring system was developed. Hazard analysis and critical control point (HACCP) analysis was used to identify potential hazards and critical control points in the transportation supply chain that affect live crab vitality. Multi-source information during live crab transportation was collected by integrating temperature, relative humidity, oxygen, alcohol, aldehyde, and impedance sensors. The predictive modelling of live crab vitality based on information fusion effectively improved, the uti-lisation of information and the accuracy of vitality prediction. An ensemble learning based soft-voting classifier outperformed the individual performances of other models (i.e. support vector machine, random forest, k-nearest neighbour) and it achieved accuracy above 99% and 86% at 4 C and 25 C. The system evaluation indicated that the developed information fusion-based vitality monitoring offers the possibility of ubiquitous monitoring of the vitality of aquatic products in the transportation supply chain and improves the economic efficiency of the supply chain.



Infrared thermography enabled morphology detection approach for additive manufactured flexible electrodes

September 2022

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25 Reads

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4 Citations

Materials Letters X

Additive manufactured flexible electrodes show prospect applications in flexible electronics. However, morphological defects may affect a flexible electronic device's sensitivity, response value, reliability, etc. Therefore, accurate and efficient defect detection is still challenging, especially for mass-manufactured flexible electrodes. This paper proposed and tested a rapid morphological defects detection approach with infrared thermography technology. This approach shows advantages of high detect resolution (minimum test defect: 183.38um), good linearity (R²=0.9887), efficiency, and nondestructive and large-scale applications, thereby achieving quality control and process evaluation in the mass additive manufacturing of flexible electrodes. Furthermore, resulting in improves the reliability and consistency of flexible electronic devices.


Citations (14)


... Many researchers have developed traceability system based on wireless network, which can realize ambient and quality data capture and trace for tilapia cold chain (Cheng, Wang, and Xie 2023;Mu et al. 2021;Zhang, Huang, et al. 2022;Zhang, Sun, et al. 2022). However, optimization and effectively monitoring the whole tilapia cold chain using intelligent sensing devices is the key to improve the quality of tilapia (Zhang et al. 2024;He et al. 2021;Huang, Wang, Zhang, et al. 2023). ...

Reference:

Reliable Quality Traceability for Tilapia Cold Chain Using Blockchain and Machine Learning Techniques
Non-destructive detection of sturgeon breath under waterless low temperature stress using microenvironment and breath angle multi-modal sensing
  • Citing Article
  • September 2024

Biosystems Engineering

... The study employed random forests, gradient boosting machines, ANNs, and regularised linear regression to predict RR, VT, and eye temperature with 13 predictor variables from three different dimensions, such as production, cowrelated, and environmental factors [132]. In another study, PVDF flexible piezoelectric sensors were used to record respiratory rhythm in Hu sheep, and the technology provides potential technical support for future health monitoring and early prediction of diseases in large farm animals [133]. ...

A non-implantable flexible stretchable sensor for detecting respiratory rhythms in animals
  • Citing Article
  • September 2024

Computers and Electronics in Agriculture

... 48 Light GBM efficiently handles large datasets with fast prediction speeds, while KNN, a non-parametric method, adapts to both linear and nonlinear data structures by classifying or predicting based on proximity. 49 The performance of the prediction models was evaluated using RMSE, the ratio of prediction to deviation (RPD) and the coefficient of determination (R 2 ) obtained in the calibration and prediction or validation set. A calibration model with R 2 > 0.9 and RPD > 2.5 indicates very good prediction and is suitable for quality control applications. ...

Multi-Frequency Bioimpedance Combined with Machine Learning for Frozen-Thawed Quality Evaluation of Atlantic Salmon
  • Citing Article
  • June 2024

Journal of Food Engineering

... Zhang et al. introduced a non-destructive testing system based on flexible bioimpedance for characterizing the quality of salmon through online monitoring of bioimpedance signals, as well as changes in ambient temperature and relative humidity [55]. Xia et al. developed a highly integrated, low-cost wearable electronic system for live fish, measuring the stress response of sturgeon with high accuracy, aligning with stress level assessments [56]. ...

Atlantic salmon adulteration authentication by machine learning using bioimpedance non-destructive flexible sensing
  • Citing Article
  • November 2023

Microchemical Journal

... In addition, it is necessary to use appropriate modeling methods to process multiscale features data for quality grading (L. Zhang et al., 2023b), as shown in Figure 1d. In recent years, methods such as partial least squares discriminant analysis (PLS-DA) (Yuan et al., 2022), support vector machine (SVM) (Wu et al., 2016), and convolutional neural network (CNN) (Guo et al., 2021;Ju et al., 2022) have been developed for defect classification of jujube. ...

Information fusion enabled system for monitoring the vitality of live crabs during transportation

Biosystems Engineering

... There are many parameters such as soil electrical conductivity [143], pestici dues in fresh fruits and vegetables [144], toxins [145], phenolic content [146], an quality [147][148][149] that need to be detected and monitored via chemical analysis or contact measurement in smart agriculture. The electronic tongue has integrated chemical sensors to sense and monitor the different parameters in agricultural e ments and food quality and safety inspired by the human gustatory system [150-15 [128]. ...

Flexible bioimpedance-based dynamic monitoring of stress levels in live oysters
  • Citing Article
  • August 2023

Aquaculture

... Traditional non-destructive testing methods, i.e. x-ray tomography [6], infrared detection [7], visual inspection [8], ultrasonic detection [9], and acoustic emission (AE) monitoring [10], are commonly used for defect characterization, which helps to identify and evaluate the defects for AM products during or after the manufacturing procedure. However, those methods are difficult to compromise between real-time detection and detection efficiency. ...

Infrared thermography enabled morphology detection approach for additive manufactured flexible electrodes
  • Citing Article
  • September 2022

Materials Letters X

... Recent research emphasises the integration of AI with devices to monitor and predict freshness levels, offering significant benefits in precision, scalability, and automation (Feng et al. 2020;Prema and Visumathi 2022;Li et al. 2022). By utilising these technologies, the seafood industry will be able to minimise food waste and ensure consumer safety. ...

Research progress on nondestructive testing technology for aquatic products freshness

Journal of Food Process Engineering

... Moreover, AI can optimize water quality parameters based on specific fish species requirements. Researchers have developed AI models for water quality index prediction and classification, employing techniques like artificial neural networks and machine learning algorithms to enhance aquaculture water quality management [37][38][39]. Their findings demonstrated that the proposed models can effectively forecast the Water Quality Index (WQI) and categorize water quality with high reliability [40]. ...

Multisensor monitoring and water quality prediction for live ornamental fish transportation based on artificial neural network

... With the rapid development of e-commerce, the demand in the logistics industry continues to grow [1,2], which promotes the rapid development of logistics packaging automation technology [3]. As a key link in commodity distribution, the quality and efficiency of logistics packaging directly affect the operational efficiency of the supply chain and the shopping experience of consumers [4,5]. Traditional manual inspection methods are inadequate when facing large-scale and highfrequency logistics packaging and are easily affected by human factors [6][7][8][9]. ...

A Data-Driven Packaging Efficiency Optimization Method for a Low Carbon System in Agri-Products Cold Chain