| 纤维红外吸收特性及其在皮棉杂质检测中的应用 |
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| 引用本文： | 郏东耀,丁天怀.纤维红外吸收特性及其在皮棉杂质检测中的应用[J].农业工程学报,2004,20(3):104-108. |
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| 作者姓名： | 郏东耀 丁天怀 |
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| 作者单位： | 1. 清华大学深圳研究生院,深圳,510000
2. 清华大学精密仪器与机械学系,北京,100084 |
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| 摘 要： | 皮棉异性纤维杂质检测技术是近几年来国内外研究的难点。为有效检测皮棉中与棉纤维外观极其相似的异性纤维杂质，提出了一种显微近红外成像方法用于检测皮棉中异性纤维。该方法将棉纤维与异性纤维在特定红外波段的吸收特性差别，转化为近红外光谱成像系统中两者的灰度、形态图像特征差别，通过显微光路对图像特征差别放大，利用图像分割技术将异性纤维目标分割出来。试验结果表明，采用显微近红外成像方法捕获的图像中，异性纤维灰度、形态特征明显，其检测结果与实际相符，此方法可有效识别皮棉中异性纤维杂质。
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| 关 键 词： | 异性纤维 红外吸收特性 显微近红外成像 图像处理 |
| 文章编号： | 1002-6819(2004)03-0104-05 |
| 收稿时间： | 2003/7/11 0:00:00 |
| 修稿时间： | 2003年7月11日 |
Infrared absorption characteristics of fibers and their application in detection of foreign fibers in cotton |
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| Jia Dongyao and Ding Tianhuai.Infrared absorption characteristics of fibers and their application in detection of foreign fibers in cotton[J].Transactions of the Chinese Society of Agricultural Engineering,2004,20(3):104-108. |
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| Authors: | Jia Dongyao and Ding Tianhuai |
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| Abstract: | Technologies currently used cannot effectively detect foreign fibers in cotton for their almost same appearance as the cotton fibers. In this paper, the method for detecting foreign fibers using micrographic NIR imaging was proposed. According to the method, the absorption characteristic discriminations between cotton fibers and foreign fibers at the near infrared band were transformed to image features discriminations. Then these discriminations were amplified through the micrographic lens on CCD. An image segmentation algorithm was selected for extracting foreign fiber objects from cotton background in image. The result indicated that the features of foreign fibers in the near infrared image were obvious and the conclusion was consistent with the fact. And it provided a feasible and an effective method to detect foreign fibers in cotton. |
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| Keywords: | foreign fibers infrared absorption characteristics micrographic NIR imaging image processing |
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