| 近红外图像纹理分析叶片含水率的初步研究 |
| |
| 引用本文： | 周晓兵,张世芳,邱白晶,赵杰文. 近红外图像纹理分析叶片含水率的初步研究[J]. 江苏大学学报(自然科学版), 1999, 0(3) |
| |
| 作者姓名： | 周晓兵 张世芳 邱白晶 赵杰文 |
| |
| 作者单位： | 江苏理工大学生物与环境工程学院，江苏理工大学动力系，江苏理工大学机械工程学院 |
| |
| 摘 要： | 利用水分子对９６０ｎｍ附近的近红外光有较强的吸收这一特性，通过图像处理技术中的纹理分析方法，对三种作物（苞菜、青菜及生菜）叶片的近红外图像进行纹理分析，找寻图像的纹理特征量与叶片的干基含水率之间的关系，为应用图像处理技术获取作物生理信息作初步的研究采用纹理分析的直方图统计特征法、灰度—梯度共生矩阵法分别对叶片的近红外图像求出各自的特征量特征量与叶片干基含水率之间的线性关系不仅和特征量有关，而且和拍摄图像时的实验因素（如摄像头的工作距离、光圈、光强等）有关灰度—梯度共生矩阵法还取决于梯度图像灰度级的数目
|
| 关 键 词： | 近红外辐射 图像处理 含水率 纹理 |
A Preliminary Study on the Leaves' Water Content Based on Near Infrared Image Texture Analysis |
| |
| Zhou Xiaobing Zhang Shifang Qiu Baijing Zhao Jiewen. A Preliminary Study on the Leaves' Water Content Based on Near Infrared Image Texture Analysis[J]. Journal of Jiangsu University:Natural Science Edition, 1999, 0(3) |
| |
| Authors: | Zhou Xiaobing Zhang Shifang Qiu Baijing Zhao Jiewen |
| |
| Abstract: | Water molecule absorbs light near 960nm more than that of others. With this characteristics, texture analysis is applied to near-infrared image of three species vegetable leaves,This work is an initial research which obtains some physiological information of vegetable by image processing technology.Respective characteristics values are obtained from near-infrared image of vegetable leaves by histogram statistic characteristics approach and greylevel-gradient coocurrence matrices approach. Linear relationships between characteristics values and dry-basis water content of leaf varies not only with characteristics values but also with experiment factors(i.e. work distance of CCD, diaphragm, intensity of light, etc.). As far as greylevel-gradient coocurrence matrices approach is concerned,the linear relationship is also related to the grayscale of gradient image. |
| |
| Keywords: | near infrared radiation image processing water content texture |
| 本文献已被 CNKI 等数据库收录！ |
