User profiles for Christophoros Nikou
Christophoros NikouProfessor of Computer Science and Engineering, University of Ioannina, Greece Verified email at cs.uoi.gr Cited by 5034 |
A class-adaptive spatially variant mixture model for image segmentation
C Nikou, NP Galatsanos… - IEEE Transactions on …, 2007 - ieeexplore.ieee.org
We propose a new approach for image segmentation based on a hierarchical and spatially
variant mixture model. According to this model, the pixel labels are random variables and a …
variant mixture model. According to this model, the pixel labels are random variables and a …
A review of human activity recognition methods
Recognizing human activities from video sequences or still images is a challenging task
due to problems, such as background clutter, partial occlusion, changes in scale, viewpoint, …
due to problems, such as background clutter, partial occlusion, changes in scale, viewpoint, …
Information theory-based shot cut/fade detection and video summarization
New methods for detecting shot boundaries in video sequences and for extracting key frames
using metrics based on information theory are proposed. The method for shot boundary …
using metrics based on information theory are proposed. The method for shot boundary …
Heartbeat time series classification with support vector machines
In this study, heartbeat time series are classified using support vector machines (SVMs).
Statistical methods and signal analysis techniques are used to extract features from the signals. …
Statistical methods and signal analysis techniques are used to extract features from the signals. …
Automated detection of cell nuclei in pap smear images using morphological reconstruction and clustering
ME Plissiti, C Nikou… - IEEE Transactions on …, 2010 - ieeexplore.ieee.org
In this paper, we present a fully automated method for cell nuclei detection in Pap smear
images. The locations of the candidate nuclei centroids in the image are detected with …
images. The locations of the candidate nuclei centroids in the image are detected with …
A Bayesian framework for image segmentation with spatially varying mixtures
A new Bayesian model is proposed for image segmentation based upon Gaussian mixture
models (GMM) with spatial smoothness constraints. This model exploits the Dirichlet …
models (GMM) with spatial smoothness constraints. This model exploits the Dirichlet …
Sipakmed: A new dataset for feature and image based classification of normal and pathological cervical cells in pap smear images
Classification of cervical cells in Pap smear images is a challenging task due to the limitations
these images exhibit and the complexity of the morphological changes in the structural …
these images exhibit and the complexity of the morphological changes in the structural …
A survey of document image word spotting techniques
Vast collections of documents available in image format need to be indexed for information
retrieval purposes. In this framework, word spotting is an alternative solution to optical …
retrieval purposes. In this framework, word spotting is an alternative solution to optical …
Combining shape, texture and intensity features for cell nuclei extraction in Pap smear images
In this work, we present an automated method for the detection and boundary determination
of cells nuclei in conventional Pap stained cervical smear images. The detection of the …
of cells nuclei in conventional Pap stained cervical smear images. The detection of the …
Overlapping cell nuclei segmentation using a spatially adaptive active physical model
ME Plissiti, C Nikou - IEEE Transactions on Image Processing, 2012 - ieeexplore.ieee.org
A method for the segmentation of overlapping nuclei is presented, which combines local
characteristics of the nuclei boundary and a priori knowledge about the expected shape of the …
characteristics of the nuclei boundary and a priori knowledge about the expected shape of the …