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王美仙,郭威艳,高磊.基于离散小波变换特征的农产品叶片表面农药残留检测方法[J].农业工程,2024,14(6):112-117. DOI: 10.19998/j.cnki.2095-1795.2024.06.019
引用本文: 王美仙,郭威艳,高磊.基于离散小波变换特征的农产品叶片表面农药残留检测方法[J].农业工程,2024,14(6):112-117. DOI: 10.19998/j.cnki.2095-1795.2024.06.019
WANG Meixian,GUO Weiyan,GAO Lei.A method for detecting pesticide residues on surface of agricultural products leaves based on discrete wavelet transform features[J].Agricultural Engineering,2024,14(6):112-117. DOI: 10.19998/j.cnki.2095-1795.2024.06.019
Citation: WANG Meixian,GUO Weiyan,GAO Lei.A method for detecting pesticide residues on surface of agricultural products leaves based on discrete wavelet transform features[J].Agricultural Engineering,2024,14(6):112-117. DOI: 10.19998/j.cnki.2095-1795.2024.06.019

基于离散小波变换特征的农产品叶片表面农药残留检测方法

A Method for Detecting Pesticide Residues on Surface of Agricultural Products Leaves Based on Discrete Wavelet Transform Features

  • 摘要: 农药残留检测方法易受到叶片图像空间噪声的干扰,检测精度较低。提出基于离散小波变换特征的农产品叶片表面农药残留检测方法。采用多模态融合网络对农产品叶片表面特征向量进行提取,在网络模型中引入注意力模块对特征向量进行非对称模态融合处理,以消除空间噪声,并通过对叶片图像的边缘进行过滤与校正,以分割叶片图像边缘,结合离散小波变换特征算法对原始图像进行逐级分解变换,并求取叶片表面光谱反射率,以此确定叶片表面感兴趣区域,基于此,利用特征光谱处理方法对农药的光谱进行判别,以此实现农药残留检测。对比试验结果表明,所提方法对于农产品叶片表面农药残留检测具有较高的检测精度。

     

    Abstract: Pesticide residue detection methods are prone to interference from spatial noise in leaf images, resulting in low detection accuracy.Therefore, a method for detecting pesticide residues on surface of crop leaves based on discrete wavelet transform features was proposed.Using a multimodal fusion network to extract surface feature vectors of crop leaves, an attention module was introduced in network model to perform asymmetric modal fusion processing on feature vectors to eliminate spatial noise.By filtering and correcting edges of leaf image, leaf image edges were segmented, and original image was decomposed and transformed step by step using a discrete wavelet transform feature algorithm, and spectral reflectance of leaf surface was calculated.Based on this, area of interest on surface of leaf was determined, and characteristic spectrum processing method was used to distinguish spectra of pesticides, in order to achieve pesticide residue detection.Comparative experimental results showed that, the proposed method has high detection accuracy for pesticide residue detection on surface of crop leaves.

     

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