Number of the records: 1

Preprocessing of Screening Mammograms Based on Local Statistical Models

SYSNO ASEP	0365940
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	Preprocessing of Screening Mammograms Based on Local Statistical Models
Author(s)	Grim, Jiří (UTIA-B)_{RID, ORCID}
Number of authors	1
Source Title	Proceedings of the 4th International Symposium on Applied Sciences in Biomedical and Communication Technologies, ISABEL 2011. - Barcelona : ACM, 2011 - ISBN 978-1-4503-0913-4
Pages	s. 1-5
Number of pages	5 s.
Action	4th International Symposium on Applied Sciences in Biomedical and Communication Technologies, ISABEL 2011, Barcelona
Event date	25.10.2011-29.10.2011
VEvent location	Barcelona
Country	ES - Spain
Event type	WRD
Language	eng - English
Country	ES - Spain
Keywords	Image processing software ; Medical Sciences ; Health
Subject RIV	IN - Informatics, Computer Science
R&D Projects	1M0572 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z10750506 - UTIA-B (2005-2011)
Annotation	In a recent paper we have proposed evaluation of screening mammograms by means of local statistical model. The model describes local statistical properties of internal pixels of a small search window - as they occur when scanning the mammogram. It is defined as a mixture of Gaussian densities which can be estimated by EM algorithm from data obtained by shifting the search window. The estimated Gaussian mixture is used to compute at all window positions the log-likelihood values which can be displayed as grey levels at the respective window centers. The resulting log-likelihood image closely correlates with the structural details of the original mammogram and emphasizes potential malignant findings as untypical locations of high novelty. In this paper we discuss the possibilities to enhance the log-likelihood image for diagnostic purposes.
Workplace	Institute of Information Theory and Automation
Contact	Markéta Votavová, votavova@utia.cas.cz, Tel.: 266 052 201.
Year of Publishing	2012

Number of the records: 1