小波多尺度空间屏蔽法在星图降噪中的应用

The Method of Space-shield filtering Based Multi-Scaling Wavelet Analysis And Application in Star-image Denoising

利用噪声信号小波变换的极大值随尺度的加大而显著减少的特点,运用小波多尺度分析进行信号噪声的消除;提出了一种基于多尺度分析的空间屏蔽滤波法,并将此方法运用到星图降噪处理中,收到良好的效果,提高了星图的可读性。

Based on the fact that the maximal of the noise wavelet transform reduce dramatically with the increase of the scale, the noise is eliminated using the multi-scaling analysis. The method of space-shield filtering is presented based the multi-scaling analysis. This method is used in the star-image denoising. We obtain result that this more advanced to the noise elimination.