不变矩及其在基于形状特征图像检索中的应用  

The Moment Invariants and Its Appliance of Image Retrieval Based on Shape Features

作　　者：苗静[1] 杨勇[1] 谷欣超[1] 孙爽滋[1] 杨兆龙[1] 张子锐[1] 

机构地区：[1]长春理工大学计算机科学技术学院,长春130022

出　　处：《长春理工大学学报（自然科学版）》2009年第1期126-128,112,共4页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：北方科技技术研究所资助项目

摘　　要：提出一种快速有效推导不变矩的方法—三角函数生成法,并在此基础上描述了一种基于Hu形状不变矩的图像全局形状特征提取方法和算法。实验结果表明,使用这种算法提取的形状特征向量具有对平移、旋转和尺度变化的不变性,适合于进行图像形状的检索。The method of generating trigonometric function is suggested as a new efficient way to derive various moment invariants, and it describes an extraction method of global shape feature of image based on Hu moment invariant and the correlative algorithm. The experimental results illuminate that the shape features extracted by this approach is, rotation and scaling to be which is translation rotation and soale invariance.

关 键 词：图像检索 图像形状 形状特征提取 形状不变矩 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]