NDLI: Evaluation of speckle reduction with denoising filtering in optical coherence tomography for dermatology

Content Provider	IEEE Xplore Digital Library
Author	Gomez-Valverde, J.J. Ortuno, J.E. Guerra, P. Hermann, B. Zabihian, B. Rubio-Guivernau, J.L. Santos, A. Drexler, W. Ledesma-Carbayo, M.J.
Copyright Year	2015
Description	Author affiliation: Center for Med. Phys. & Biomed. Eng., Med. Univ. of Vienna, Vienna, Austria (Hermann, B.; Zabihian, B.; Drexler, W.) \|\| MedLumics S.L., Tres Cantos, Spain (Rubio-Guivernau, J.L.) \|\| Dept. of Electron. Eng., Univ. Politec. de Madrid, Madrid, Spain (Gomez-Valverde, J.J.; Guerra, P.; Santos, A.; Ledesma-Carbayo, M.J.) \|\| Biomed. Res. Center in Bioeng., Biomater. & Nanomed. (CIBER-BBN), Spain (Ortuno, J.E.)
Abstract	Optical Coherence Tomography (OCT) has shown a great potential as a complementary imaging tool in the diagnosis of skin diseases. Speckle noise is the most prominent artifact present in OCT images and could limit the interpretation and detection capabilities. In this work we evaluate various denoising filters with high edge-preserving potential for the reduction of speckle noise in 256 dermatological OCT B-scans. Our results show that the Enhanced Sigma Filter and the Block Matching 3-D (BM3D) as 2D denoising filters and the Wavelet Multiframe algorithm considering adjacent B-scans achieved the best results in terms of the enhancement quality metrics used. Our results suggest that a combination of 2D filtering followed by a wavelet based compounding algorithm may significantly reduce speckle, increasing signal-to-noise and contrast-to-noise ratios, without the need of extra acquisitions of the same frame.
Starting Page	494
Ending Page	497
File Size	605342
Page Count	4
File Format	PDF
ISBN	9781479923748
DOI	10.1109/ISBI.2015.7163919
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-04-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical filters Speckle Digital filters Adaptive optics Biomedical optical imaging Optical imaging Tomography dermatology Optical Coherence Tomography speckle denoising
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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