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Ioannis Pitas

Researcher at Aristotle University of Thessaloniki

Publications -  826
Citations -  26338

Ioannis Pitas is an academic researcher from Aristotle University of Thessaloniki. The author has contributed to research in topics: Facial recognition system & Digital watermarking. The author has an hindex of 76, co-authored 795 publications receiving 24787 citations. Previous affiliations of Ioannis Pitas include University of Bristol & University of York.

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Color Texture Segmentation Based on the Modal Energy of Deformable Surfaces

TL;DR: This paper presents a new approach for the segmentation of color textured images, which is based on a novel energy function, derived by exploiting an intermediate step of modal analysis that is utilized in order to describe and analyze the deformations of a 3-D deformable surface model.
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Visual Object Tracking Based on Local Steering Kernels and Color Histograms

TL;DR: A visual object tracking framework, which employs an appearance-based representation of the target object, based on local steering kernel descriptors and color histogram information, which is proven to be successful in tracking objects under scale and rotation variations and partial occlusion, as well as in tracking rather slowly deformable articulated objects.
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Facial feature detection using distance vector fields

TL;DR: A novel method for eye and mouth detection and eye center and mouth corner localization, based on geometrical information, which has been tested on the XM2VTS and BioID databases, with very good results.
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Pothole Detection Based on Disparity Transformation and Road Surface Modeling

TL;DR: A robust pothole detection algorithm that is both accurate and computationally efficient and integrates the surface normal into the surface modeling process to improve disparity map modeling robustness.
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Segmentation of ultrasonic images using support vector machines

TL;DR: It is demonstrated that trained SVMs with a radial basis function kernel segment satisfactorily (unseen) ultrasound B-mode images as well as clinical ultrasonic images.