Identification of Sorghum Breed by Hyperspectral Image Technology
SONG Shao-zhong1, LIU Yuan-yuan2, ZHOU Zi-yang3, TENG Xing3, LI Ji-hong3, LIU Jun-ling1, GAO Xun2*
1. School of Data Science and Artificial Intelligence, Jilin Normal University of Engineering and Technology, Changchun 130052, China
2. School of Physics, Changchun University of Science and Technology, Changchun 130022, China
3. Jilin Academy of Agricultural Sciences, Changchun 130033, China
Abstract：Sorghum is an important raw material for liquor brewing. The components of sorghum are very important to the trace components and quality of liquor, and the quality of sorghum can affect the quality and flavor of liquor. Therefore, the nondestructive and rapid identification of sorghum breeds is an urgent and important question for improving the quality of liquor. In this paper, hyperspectral imaging technology combined with a machine learning algorithm is used to classify and identify sorghum breeds. By using the hyperspectral imaging technology, hyperspectral spectral lines and image texture data of 10 breeds of sorghum are obtained at the same time. Multivariate scattering correction (MSC) is used to preprocess the hyperspectral spectrum, and a continuous projection algorithm (SPA) is used to screen 62 feature bands. The gray level co-occurrence matrix extracts four texture features of sorghum. The hyperspectral spectral data and spectral-image fusion data are used, respectively, and four machine learning algorithms, including PLS-DA, SVM, ELM and RF, are used to classify and identify the sorghum breed. The results show that the hyperspectral characteristic bands extracted by SPA dimensionality reduction can be represented by the data information of the full hyperspectral spectral information after MSC pretreatment, which improves the stability of the PLS-DA algorithm model in the identification of the sorghum breed. The identification accuracy of 10 breeds of sorghum is improved from 67.58% to 93.85%, and the identification accuracy is increased by 27%.After the fusion of hyperspectral spectral data and image texture feature data, the identification accuracy of the sorghum breed by using the PLS-DA model under the conditions of full-spectrum and feature spectrum is improved to 96.47% and 97.16%, respectively, which is more suitable for the classification and identification of sorghum breed compared with the single hyperspectral data. Compared with the results of SVM, ELM, and RF machine learning algorithms, the PLS-DA machine learning algorithm model has the best identification accuracy for the sorghum breed. The research has proved the effectiveness of hyperspectral imaging technology combined with machine learning algorithms in the identification of sorghum breeds, which can achieve fast and accurate quality inspection of sorghum products.
宋少忠，刘园园，周紫阳，滕 星，李继红，刘君玲，高 勋. 基于高光谱图像技术的高粱品种识别研究[J]. 光谱学与光谱分析, 2024, 44(05): 1392-1397.
SONG Shao-zhong, LIU Yuan-yuan, ZHOU Zi-yang, TENG Xing, LI Ji-hong, LIU Jun-ling, GAO Xun. Identification of Sorghum Breed by Hyperspectral Image Technology. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(05): 1392-1397.
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