Blind separation of image sources via adaptive dictionary learning

IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
Vahid AbolghasemiSaeid Sanei

Abstract

Sparsity has been shown to be very useful in source separation of multichannel observations. However, in most cases, the sources of interest are not sparse in their current domain and one needs to sparsify them using a known transform or dictionary. If such a priori about the underlying sparse domain of the sources is not available, then the current algorithms will fail to successfully recover the sources. In this paper, we address this problem and attempt to give a solution via fusing the dictionary learning into the source separation. We first define a cost function based on this idea and propose an extension of the denoising method in the work of Elad and Aharon to minimize it. Due to impracticality of such direct extension, we then propose a feasible approach. In the proposed hierarchical method, a local dictionary is adaptively learned for each source along with separation. This process improves the quality of source separation even in noisy situations. In another part of this paper, we explore the possibility of adding global priors to the proposed method. The results of our experiments are promising and confirm the strength of the proposed approach.

References

Oct 22, 2005·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Jean-Luc StarckDavid L Donoho
Feb 17, 2006·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Anna TonazziniEmanuele Salerno
Jul 13, 2006·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Mahieddine M Ichir, Ali Mohammad-Djafari
Dec 13, 2006·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Michael Elad, Michal Aharon
Nov 10, 2007·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Jérôme BobinYassir Moudden
Nov 10, 2007·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Jérôme BobinDavid L Donoho
Feb 7, 2008·IEEE Transactions on Neural Networks·A Hyvärinen
Apr 2, 2009·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Koray KayabolBülent Sankur

❮ Previous
Next ❯

Citations

Oct 11, 2013·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Shanshan WangJianhua Luo
May 17, 2014·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Jayaraman J ThiagarajanAndreas Spanias
Jun 29, 2013·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Shuyuan YangZhiyi Wang
Aug 26, 2017·Medical & Biological Engineering & Computing·Saideh Ferdowsi, Vahid Abolghasemi
Nov 11, 2016·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Nikos DeligiannisIngrid Daubechies
Jun 6, 2018·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Bo DuDacheng Tao
Dec 25, 2019·Applied Optics·Xiang ZhaiYuan Wei

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
Mona Mahmoudi, Guillermo Sapiro
IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
Julien MairalGuillermo Sapiro
IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
Saiprasad Ravishankar, Yoram Bresler
© 2022 Meta ULC. All rights reserved