基于差异的图像特征描述及其在绝缘子识别中的应用  

Features description of difference-based image and its application in insulator recognition

作　　者：高强[1] 杨红叶[1] 

机构地区：[1]华北电力大学电气与电子工程学院,河北保定071003

出　　处：《电测与仪表》2015年第3期117-122,共6页Electrical Measurement & Instrumentation

摘　　要：文中提出了一种新的特征描述方法用于目标识别以及实际航拍图像的绝缘子识别。定义了一种差异的计算方法,将图像的灰度值矩阵转换为差异值矩阵,将人眼对图像灰度差异敏感度的非线性关系转换为线性关系;之后针对差异值、形状、角度等特征进行区域描述以及区域之间联合特征描述。通过实验验证,提出的描述方法可以表示图像的灰度差异、形状变化等多个特征,将新的描述方法应用到实际航拍图像中,可以实现对绝缘子的识别。This paper proposes a new features description method for target recognition and insulator recognition in the actual aerial images. Firstly,it defines a difference calculating method,Then,it converts the gray value matrix of an image to a difference value matrix,and also converts the non-linear relationship between human eye sensitivity and differences of image gray value to a linear relationship. At last,it describes the difference value,shape,angle and other features of a region and the combined features between regions. Experiments results show that the proposed method can represent multiple features of image such as the gray differences,the shape changes,etc. The application of this new method on the actual aerial images can realize the insulator recognition.

关 键 词：差异 隶属度 绝缘子 区域 联合特征描述 

分 类 号：TM216[一般工业技术—材料科学与工程]