| 结合光谱角的最大似然法遥感影像分类 |
| |
| 引用本文： | 陈亮,刘希,张元.结合光谱角的最大似然法遥感影像分类[J].测绘工程,2007,16(3):40-42,47. |
| |
| 作者姓名： | 陈亮 刘希 张元 |
| |
| 作者单位： | 河海大学,水文水资源及水利工程国家重点实验室,江苏,南京,210098;国家海洋局第三海洋研究所,福建,厦门,361005 |
| |
| 摘 要： | 遥感影像含有丰富的信息,反映了地物特征。其中光谱角侧重描述了光谱的形状特征,具有对多光谱图像增益不敏感的特点。最大似然法是遥感影像分类最常用的方法之一,文中对该方法的后验概率判别函数进行修改,将光谱角以概率因子的形式加入到判别函数中构造一种新的判别函数,有机地将光谱角这一特征信息加入影像分类。通过实验,并与最大似然法和光谱角匹配法分类结果进行比较,结果表明,结合光谱角的最大似然分类法的分类精度得到提高。
|
| 关 键 词： | 影像分类 光谱角 最大似然分类 归属概率函数 |
| 文章编号： | 1006-7949（2007）03-0040-03 |
| 收稿时间： | 2006-10-12 |
| 修稿时间： | 2006-10-12 |
A study of image classification based on MLC combined with spectral angle |
| |
| CHEN Liang,LIU Xi,ZHANG Yuan.A study of image classification based on MLC combined with spectral angle[J].Engineering of Surveying and Mapping,2007,16(3):40-42,47. |
| |
| Authors: | CHEN Liang LIU Xi ZHANG Yuan |
| |
| Institution: | 1. State Key Laboratory of Hydrology-Water Resource and Hydraulic Engineering, Hehai University, Nanjing 210098, China; 2. The Third Institute of Oceanography, SOA, Xiamen 361005, China |
| |
| Abstract: | The image information in abundance,reflects the feature of the objects.Spectral angle emphasizes the shape of the spectral and it isn't sensitive to the enhancement of the image.Maximum Like hood Classification MLC) is one of popular methods for remote sensing image classification.Spectral angle expressed as probability is added to the discriminant function.By this way,spectral angle is used to classify image as a feature.The experimental classification is carried out and the results show that the classification based on MLC combined with spectral angle has a higher accuracy compared with traditional MLC and SAM. |
| |
| Keywords: | image classification spectral angle MLC discriminant function |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
