Method and device for detecting stored-grain insects based on near infrared super-spectral imaging technology

A technology for storing pests and detection methods, which is applied in the direction of measuring devices, color/spectral characteristic measurement, and material analysis through optical means. and other issues to achieve the effect of accurate counting

Inactive Publication Date: 2010-05-05
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented method involves developing an algorithm called Live Grape Bee (LGB) based on artificial intelligence techniques like Neural Network Classifier Support Vector Machine(NBM). It achieves this by learning from data collected through experiments conducted over time and comparing it against previously trained models stored within memory. By doing these things we aimed at improving upon existing methods used during researches related to biodiversity conservation. Overall, LTB helps scientists better understanding how living beings work together effectively without being threatened.

Problems solved by technology

The patent text discusses the importance of accurately detecting and identifying pests in grain storage facilities. Currently, traditional methods such as sampling and trapping are used, but they have limitations in terms of efficiency and accuracy. The text suggests using computer vision technology to automatically extract grain samples, capture images of pests, and then use image processing and pattern recognition techniques to identify and classify the pests. However, existing computer vision systems can only classify a limited number of pest species and cannot distinguish between live and dead pests. Therefore, the technical problem addressed by the patent is to develop an automatic detection method and device that can accurately identify and count live pests in grain storage facilities.

Method used

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  • Method and device for detecting stored-grain insects based on near infrared super-spectral imaging technology
  • Method and device for detecting stored-grain insects based on near infrared super-spectral imaging technology

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Embodiment Construction

[0022] Combine below figure 1 对本发明的具体实施进行说明。

[0023] 本发明所述的检测装置由光箱1、照明单元、位移单元、光谱成像单元和计算机4五部分组成。所述的光箱1为采集盒10中的筛下物提供均匀的漫反射光,内含玻璃光纤线性灯8、位移台9、光谱成像单元,且光谱相机和玻璃光纤线性灯8上、下、左、右、前、后可自由调节。所述的照明单元由内含卤钨灯的直流可调光源2和Y分支玻璃光纤线性灯8构成,为成像单元提供均匀的近红外波段的光照。所述的位移单元由位移台9和位移台控制器3组成,位移台控制器3通过数据线与位移台9和计算机4相连,接收来自计算机4发出的位移台9控制指令,并向位移台9发出驱动控制命令。所述的光谱成像单元包括铟镓砷近红外相机5、成像光谱仪6和近红外镜头7,垂直安装在位移台9的正上方,近红外相机5与成像光谱仪6和计算机4相连,近红外相机5的光谱范围为900-1700nm,其前端是近红外镜头7,能拍摄采集盒中筛下物的图像,将光谱成像数据立方体高速传输到计算机4。所述的计算机4用于图像采集、处理、分析和显示。

[0024] 工作时,确定近红外相机5的曝光时间及位移台4的速度,避免图像失真变形,并进行黑白场的标定,消除近红外相机5的暗电流噪声。驱动位移台4匀速运行,在稳定的条件下进行粮食筛下物的近红外超光谱图像采集,并高速传输至计算机4。图像采集完毕后,位移台9自动复位。利用近红外超光谱成像装置采集,去除粮食筛下物的近红外超光谱图像中CCD“坏点”等噪声。提取同时含活虫和死虫数据立方体的最优光谱波长。对筛下物的最优光谱波长图像进行图像处理,得到含有粮虫活虫目标的二值化图像,提取其面积、周长、复杂度等特征参数,通过识别软件判别出粮虫活虫,统计粮虫活虫的头数,并提取出每个活虫在图像中的坐标信息。结合上述活虫的坐标信息,分割出最优光谱波长图像中粮虫活虫的子区域,提取粮虫活虫的近红外光谱特征,运用识别软件确定出粮虫活虫的种类。

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Abstract

The invention relates to a method and a device for detecting stored-grain insects. A near infrared super-spectral imaging device for automatically acquiring grain screen underflows consists of five parts including a light box, a lighting unit, a displacement unit, a spectral imaging unit and a computer, wherein the spectral imaging unit comprises an indium-gallium-arsenic near infrared camera, an imaging spectrometer and a near infrared lens. The method for detecting stored-grain insects comprises the following steps of extracting the wavelength of an optimal spectrum synchronously containing data cube of both of live insect and dead insect, and determining the number of the live insects in stored-grain insects and the coordinate information of each live insect in the image; extracting sub-area of the image in which the live insects in the stored-grain insects are located, determining species information of the live insects in the stored-grain insects by identification software according to the near infrared spectrum characteristics of the live insects in the stored-grain insects, and realizing the automatic detection of the stored-grain insects.

Description

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Claims

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Application Information

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Owner JIANGSU UNIV
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