摘要： 目前，景象匹配中的匹配概率研究还不够完善，传统的景象匹配概率的定量计算是通过匹配信噪比、独立像元数、图像匹配次数来确定的，但是对于雷达景象由于其特殊的图像特性，传统的定量计算方法往往会计算出错误的景象匹配概率。该文定义了雷达景象的“贡献像元数”，利用贡献像元数和理论推导，得出了景象匹配概率。通过大量实践证明，运用贡献像元数来计算景象匹配概率是一种有效的方法。

关键词: 景象匹配, 匹配概率, 信噪比, 独立像元数

Abstract: Research on the match probability is not mature. The traditional way to calculate the probability is by means of SNR, independent pixel quantity and match times. Because of the special characteristic of radar scene, the traditional way of calculating the probability is sometimes inaccurate. The paper defines the contribution pixel quantity and provides a new method of calculating the probability. It is proved by many experiments that taking advantage of the contribution pixel quantity to calculate the probability is an effective way of counting the scene match probability.

Key words: Scene match, Match probability, SNR, Independent pixel quantity

中图分类号: 

• TP391