Proceedings of SPIE - the International Society for Optical Engineering
We presented a method to reduce noise in signals using a higher-order, correlation-based approach. This paper examines the differences between hard and soft thresholds using the higher-order method, and the use of different wavelets in the denoising algorithm. Using a detection algorithm derived from third-order statistics, we determined if a wavelet coefficient was either mostly noise or mostly signal based on third-order statistics. We found that hard thresholding worked best when compared to soft thresholding but there is the possibility of improvement using soft thresholding.
Kozaitis, S. P. (2007). Improved denoising approach using higher-order statistics. Paper presented at the Proceedings of SPIE - the International Society for Optical Engineering, , 6576 doi:10.1117/12.718704