A New Threshold Function De-Noising Method Based on Wavelet Transform
Based on the wavelet threshold denoising method which is proposed by D.L.Dohono and I. M.Johnstone, puts forward a new threshold function. The new threshold function has many advantages over the classical soft or hard threshold function. It is clear in physics meaning and simple in expression. The results show that this improved method is effective in remov-ing white noise,gives better RMSE performance and SNR gains than the soft or hard thresholdmethods,makes it possible to embody the advantages of thewavelet threshold de-noising method more fully.