干旱区生态环境知识资源中心(Arid): SAR图像盐渍地分类研究

Arid

	SAR图像盐渍地分类研究
其他题名	Salinized Land Classification from SAR Image
	阿尔达克; 塔西甫拉提·特依拜; 张飞
来源期刊	遥感信息
ISSN	1000-3177
出版年	2011
期号	4 页码:64-70
中文摘要	以渭干河库车河三角洲绿洲为例,利用SAR数据,采用不同的分类方法来提取该研究区盐渍化土地覆盖信息。首先用Enhanced frost滤波算法对SAR图像进行去噪处理。然后基于灰度共生矩阵理论提取去噪后的SAR图像4种纹理特征,并在不同窗口大小下筛选出有效的纹理特征。最后结合纹理特征分别采用最大似然分类法和SVM分类法对SAR图像进行分类。研究结果表明:基于纹理特征的SVM分类方法,能够有效解决单源数据信息图像分类效果破碎问题;13*13窗口的总精度达到98.2456%,Kappa系数达到0.9763,更有利于遥感图像分类和盐渍化信息监测,是地物遥感信息提取的有效途径。
英文摘要	Support Vector Machine(SVM)is a new-style classification method.The authors took the Delta oases of Weigan and kuqa rivers as examples,using SAR data and different methods to extract the salinization cover information.Firstly,the speckles from SAR image are eliminated by the enhanced Frost filter algorithm.Then the texture features of the denoised SAR image are extracted based on gray co-occurrence matrix,and the effective texture features are screened through the different size windows.At last,combining with texture features,SAR image is classified with the classical maximum likelihood and SVM classification methods.This study shows that the classification based on SVM method can solve the problem of image broken which was occurred while classification was based on the single-source data,and has the good generalization ability with the high dimension vector.The classification precision of the window of 13*13 is up to 98.2456% and kappa coefficient up to 0.9763.Therefore,the classification method by SVM based on texture characteristics can be adapted to SAR image classification and monitoring of soil salinization,and furthermore,provides an effective way for remote sensing information extraction
中文关键词	支持向量机(SVM) ; SAR图像 ; 盐渍化 ; 纹理特征
英文关键词	Support Vector Machine(SVM) SAR image soil salinization texture characteristic
语种	中文
国家	中国
收录类别	CSCD
WOS类目	REMOTE SENSING
WOS研究方向	Remote Sensing
CSCD记录号	CSCD:4281878
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/227319
作者单位	新疆大学资源与环境科学学院, 绿州生态教育部重点实验室, 乌鲁木齐, 新疆 830046, 中国
推荐引用方式 GB/T 7714	阿尔达克,塔西甫拉提·特依拜,张飞. SAR图像盐渍地分类研究[J]. 新疆大学,2011(4):64-70.
APA	阿尔达克,塔西甫拉提·特依拜,&张飞.(2011).SAR图像盐渍地分类研究.遥感信息(4),64-70.
MLA	阿尔达克,et al."SAR图像盐渍地分类研究".遥感信息 .4(2011):64-70.