数字农科院2.0

Research on near-ground forage hyperspectral imagery classification based on fusion preprocessing process

文献类型： 外文期刊

作者： Yilei Liu;Xin Pan;Jiangping Liu;Shengwei Zhang;Weihong Yan

作者机构：

关键词： attention mechanism;CBAMResNet;classification;Forage;HSI

期刊名称： International Journal of Digital Earth

ISSN： 1753-8947

年卷期： 2023 年 16 卷 2 期

页码：

收录情况： SCIE（2023版） ; ; EI（2023版）

摘要： Accurate identification and classification of forage grass are pivotal in optimizing forage resources and breeding superior forage varieties. Given the low accuracy in forage image identification and classification, and the loss of some features from preprocessing, we proposed an innovative approach that integrates preprocessing operations directly into the model instead of preceding feature analysis. We captured near-ground hyperspectral imagery of forage in the field and applied two deep learning models–Squeeze and Excitation ResNet (SEResNet) and Convolution Block Attention Module ResNet (CBAMResNet). These models not only harness the automatic learning capabilities of the ResNet deep network but also employ channel attention and a channel-plus-space dual attention mechanism to filter and label important features. This approach enhances data extraction and analysis, strengthen the correlation between the channel and space dimensions while eliminating redundancy and noise. We compared the performance of the proposed methods with the current popular methods by six evaluation parameters, including overall accuracy (OA), average accuracy (AA), Kappa coefficient, etc. Experiment results show the OA of SEResNet and CBAMResNet are 96.57% and 98.35% respectively. The experiments demonstrate the feasibility of incorporating preprocessing into the network and the effectiveness of the new idea for the classification research of forage.

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