D
Dimitris Maroulis
Researcher at National and Kapodistrian University of Athens
Publications - 131
Citations - 2366
Dimitris Maroulis is an academic researcher from National and Kapodistrian University of Athens. The author has contributed to research in topics: Image segmentation & Active contour model. The author has an hindex of 25, co-authored 131 publications receiving 2173 citations. Previous affiliations of Dimitris Maroulis include Athens State University.
Papers
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Journal ArticleDOI
Computer-aided tumor detection in endoscopic video using color wavelet features
TL;DR: An approach to the detection of tumors in colonoscopic video based on a new color feature extraction scheme to represent the different regions in the frame sequence based on the wavelet decomposition, reaching 97% specificity and 90% sensitivity.
Book ChapterDOI
Fuzzy Local Binary Patterns for Ultrasound Texture Characterization
TL;DR: The proposed Fuzzy Local Binary Pattern approach was experimentally evaluated for supervised classification of nodular and normal samples from thyroid ultrasound images and the results validate its effectiveness over LBP and other common feature extraction methods.
Proceedings ArticleDOI
A comparative study of texture features for the discrimination of gastric polyps in endoscopic video
TL;DR: The results advocate the feasibility of a computer-based system for polyp detection in video gastroscopy that exploits the textural characteristics of the gastric mucosa in conjunction with its color appearance.
Journal ArticleDOI
Variable Background Active Contour Model for Computer-Aided Delineation of Nodules in Thyroid Ultrasound Images
Dimitris Maroulis,Michalis A. Savelonas,Dimitris K. Iakovidis,S.A. Karkanis,N. Dimitropoulos +4 more
TL;DR: From the quantification of the results, two major impacts have been derived: higher average accuracy in the delineation of hypoechoic thyroid nodules, which exceeds 91%; and faster convergence when compared with the ACWE model.
Journal ArticleDOI
The New Multichannel Radiospectrograph ARTEMIS-IV/HECATE, of the University of Athens
C. Caroubalos,Dimitris Maroulis,N. Patavalis,Jean-Louis Bougeret,G. Dumas,C. Perche,C. E. Alissandrakis,A. Hillaris,Xenophon Moussas,Panagiota Preka-Papadema,A. Kontogeorgos,P. Tsitsipis,G. Kanelakis +12 more
TL;DR: The new solar radiospectrograph of the University of Athens operating at the Thermopylae Station since 1996 is presented, used either by itself to study the onset and evolution of solar radio bursts or in conjunction with other instruments including the Nançay Decametric Array and the WIND/WAVES RAD1 and RAD2 low frequencyreceivers to study associated interplanetary phenomena.