New methods for MRI denoising based on sparseness and self-similarity

► Sparseness can be used to effectively reduce noise in the images. ► Selfsimilarity can be also exploited to remove noise from the images. ► Combining both properties in a single denoising method produces the best results. ► The proposed methods are able to deal with Rician noise (MRI). ► Comparison with state-of-the-art methods show the improved performance.