基于逆滤波器的旋转不变匹配滤波相关识别

Rotating Invariance Matched Filtering Correlation Recognition Based on Inverse Filter

提出了用逆滤波器来进行旋转不变匹配滤波相关识别方法 ;采用级联变形滤波器可以实现透射匹配相关峰强度对透射输入能量的优化 ,大大改善相关峰的锐度 ,计算机模拟结果显示 ,对旋转图像 ,在平面内按 0°～ 32°旋转 ,每 4°取一灰度图像的旋转不变匹配滤波相关器 ,具有较好的相关不变识别性能 。

Based on inverse filtering technique, a method of rotating invariance matched filtering correlation recognition is proposed in this paper. Using cascade modified filter method, the optimization of transmitted matched correlation peak intensity to transmitted input energy can be realized. And so the sharpness of correlation peak is improved greatly. The computer simulation results show that for the rotating image, the rotating invariance matched filtering correlator of rotating 0°-32° with 4° interval proposed in this paper possesses good correlation invariance recognition performance, especially the target recognition can still be successfully in progress under the case of partly input target image.