2016/01/18 by Vibhor Kumar, Kumar, Vibhor, Jukka Heikkonen +1
Computer Science · #Advanced Data Compression Techniques #Blind Source Separation Techniques #FOS: Computer and information sciences #Image and Signal Denoising Methods #Information Theory (cs.IT)
paper · pdf · doi:10.48550/arxiv.1601.04388
openalex publication_date 2016/01/18 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Denoising has always been theoretically considered as removal of high frequency disturbances having Gaussian distribution. Here we relax this assumption and the method used here is completely different from traditional thresholding schemes. The data are converted to wavelet coefficients, a part of which represents the denoised signal and the remaining part the noise. The coefficients are distributed to bins in two types of histograms using the principles of Minimum Description Lengthi(MDL). One histogram represents noise which can not be compressed easily and the other represents data which can be coded in small code length. The histograms made can have variable width for bins. The proposed denoising method based on variable bin width histograms and MDL principle is tested on simulated and real data and compared with other well known denoising methods.