摘要
区域面积和周长是图像分析与识别过程中所需的两个重要参数。本文提出了一种计算区域面积和周长的新方法，该方法的主要特点是算法简单，可借助快速傅立叶变换实现。文中详细地推导了有关计算公式，给出了快速算法的实现过程。实验表明，该方法具有较高的计算精度。由于可采用快速傅立叶变换算法为计算工具，该方法易于实现并具有很高的运算速度。
The area and perimeter of the closed region are two important parameters for image analysis and recognition. In this paper, a new method for calculating area and perimeter of the closed region is proposed. The main characteristics of the new method prove that the algorithm is very simple and that the FFT can be used in the algorithm. The calculating formulas are deduced in detail. The experiment shows that the new method has high computation accuracy. As the FFT algorithm can be used in the computation process, the new method can be easily realized and has the high computation speed.
出处
《数据采集与处理》
CSCD
1999年第2期244-246,共3页
Journal of Data Acquisition and Processing
关键词
图像分析
区域面积
区域周长
图像识别
image analysis
fast algorithm
boundary description
area of region
perimeter of region
