||Analysis of dermatological images for teledermatology and diagnostic applications|
We are researching and developing image processing algorithms for dermatological applications in diagnostic and decision making systems as well as for education. This includes the creation of a personalized surface model from a set of color and depth camera images, detection and classification of dermatological findings, such as psoriasis lesions and plaques, as well as longitudinal analysis of changes.
||Image analysis methods for visual code detection and recognition|
The aim of this research is to study image features and processing methods for detection of visual code regions (1D barcode, 2D datamatrix, OCR characters), with special focus on highly accurate and efficient algorithms that can be adapted for real industrial applications.
||Extraction of Near Circular Objects using Markov Random Fields: The Multilayer 'Gas of Circles' Model|
A multi-layer binary Markov random field model for extracting an unknown number of possibly touching or overlapping near-circular objects.
|| Higher Order Active Contours - the `Gas of Circles' Shape Prior|
The `gas of circles' (GOC) model is a tool to describe a set of circles with an approximately fixed radius. The model is based on the higher-order active contour (HOAC) framework. The method has been succesfully applied to tree crown extraction on aerial images.
||Multicue Image and Video Segmentation: a Multi-layer MRF Framework|
The human visual system is not treating different features sequentially.
Instead, multiple cues are perceived simultaneously and
then they are integrated by our visual system in order to explain the
observations. Therefore different image features has to be handled in
a parallel fashion. In this project, we attempt to develop such a model
in a Markovian framework.
||Organ segmentation from 3D CT images|
Study and development of image segmentation algorithms for different organs from CT images for radiotherapy planning purposes.
||Automatic Color Image Segmentation via Reversible Jump MCMC|
The goal of this project is to propose a method which is able to segment a color image without any human intervention. The only input is the observed image, all other parameters are estimated during the segmentation process. The algorithm finds the most likely number of classes, their associated model parameters and generates a segmentation of the image by classifying the pixels into these classes.
||MR intensity standardization and fuzzy segmentation of MR images|
We developed an image processing method for MRI intensity
We also introduced new, fast implementations of the fuzzy connectedness algorithm that allows segmentation at interactive speeds.
We developed a new segmentation "workshop" for brain MRI segmentation using standardized MR images and the fast fuzzy connectedness algorithms.
||Cellular Neural Networks for Markov Random Field Image Segmentation|
The main contribution of this project is the implementation of a Markovian image segmentation model
on a new chip, called CNN (Cellular Neural
Networks), which is capable
to do the task in real time.
||Multi-scale Markovian Modelisation in Image Segmentation and Remote Sensing|
This project is about image segmentation algorithms using a Markovian approach.
The main contribution is a new hierarchical MRF model and a Multi-Temperature Annealing (MTA) algorithm proposed for the energy minimization of the model. The convergence of the MTA algorithm has been proved towards a global optimum in the most general case, where each clique may have its own local temperature schedule.