摘要
本文研究图象信号和噪声为相互独立的二次均方可微的齐次高斯随机场情况。假定图象信号的数学期望为零,证明了相关器输出的基本性质。导出了内含式和穿越式两种相关器的定位精度公式。用实例验证了方法的正确性和可行性。为相关器的定位精度分析提供了理论依据和有效方法。
This paper studies the case when the image signal and noise are mutually independent both are quadrate mean-square-differentiable and homogeneous Gauss random fields. Suppose the mathematical expectation of image signal is zero, the basic properties of the correlator output are given. The location accuracy formulas of the contain-wise and pass-wise correlators are derived. The validity and feasibility of the method are verified by actual examples. The theoretical basis and an effective method are provided for the location accuracy analysis of correlators.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
1990年第2期8-15,共8页
Journal of Astronautics
关键词
模板
图象
定位精度
随机场
相关
Template, Image, Correlation, Location accuracy, Random field.
