An Approach to Determining the Decomposition Level for Wavelet De-Nosing Based on Gamma Test

@inproceedings{Wang2013AnAT,
  title={An Approach to Determining the Decomposition Level for Wavelet De-Nosing Based on Gamma Test},
  author={Yuhuai Wang and Yan Yan Chen},
  year={2013}
}
The wavelet de-noising approach is one of the most efficient techniques for noise reduction. Except for the mathematical elegancy in its theoretical aspect, a successful application requires appropriate determination on the decomposition level. This paper proposes a novel approach to selecting an appropriate decomposition level by applying the Gamma test on the noisy data to estimate the noise variance. A number of experiments were carried out on a set of smooth signals corrupted by white… CONTINUE READING