Wiener滤波复原技术在磁粉探伤中的应用

Application of Wiener Filter Restoration Technology in Magnetic Particle Testing

采用误差参数曲线的方法估计图像散焦半径,并计算点扩散函数,构造出改进的Wiener滤波器,并用DSP硬件系统实现,应用于磁粉探伤系统散焦图像的处理。

The method based on error-parameter curve is used to estimate out-of-focus radius of image,the point spread function is computed to construct the improved Wiener filer,which is realized by DSP hardware system and applied to process the out-of-focus image in the magnetic particle testing system.