关键词: 灰度变换, 灰度统计, 模板匹配, 十字模板, 形心算法

Abstract:

Based on target detection range and the distance, small test target, target and background low contrast problems, puts forward the characteristics based on linear template matching algorithm of target detection range in positioning method, in order to cross a features instead of the two dimensional linear rectangular template matching calculations, reduce the computational complexityin matching algorithm and raised the speed of the algorithm and ensure the accuracy. using the CCD（Charge Coupled Device） camera shooting range of target image sequences the simulation experiment is conducted. the experimental results show that the characteristics in straight line instead of a rectangular template matching algorithm related calculation of template, and improve the system of the target tracking guarantee the accuracy rate algorithm, and has very strong robustness.

Key words: gray transformation, gray statistics, template matching, cross template, projection algorithm