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为了克服传统RGB三基色相机图像颜色重建的缺点,论文提出用多光谱相机捕获植物光谱图像的方法,根据图像捕获位置和观测位置照明光源的情况重建出植物病虫害的真实色彩。实验利用16个窄带滤光片和黑白面阵CCD摄像机获得植物病虫害的多光谱信息,通过多项式插值拟合出观测目标的光谱曲线。并和PR-715光谱辐射度计进行比较,对重建结果做出分析。试验结果表明16个通道的多光谱图像能够重建出植物病虫害的颜色。
Abstract：For a reliable diagnosis of plant deseases and insect pests,it is very important to reproduce the original color of the object.But when the illumination environment for observing images is different from the illumination used for recording,the standard images are a lack of fidelity.In this paper,for getting over the disadvantages of the RGB camera,we present a natural color reproduction system for plant deseases and insect pests.In this system,the illumination difference between the image site and observing site is corrected by using multispectral images.For the improvement of the color reproduction accuracy,16 band filters are utilized in the color measurement.The accuracy in color reproduction of the develeped system is experimentally evaluated.As a result,it is confirmed that the system realizes with good accuracy the color reproduction of plant diseases and insect pests from 16 multispectral image.
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基本信息:
中图分类号:S43
引用信息:
[1]冯洁,廖宁放,罗永道,等.多光谱颜色重建在植物病虫害检测中的应用[J].影像技术,2007,No.81(06):6-9.
基金信息:
国家自然科学基金(No.60678052)项目;; 国家863项目(No.2006AA10Z10);; 云南省自然科学基金项目(No.2005F0033M)。
2007-12-15
2007-12-15