%0 Book Section %B Computer Vision Systems %D 2008 %T Skeletonization based on metrical neighborhood sequences %A Attila Fazekas %A Kálmán Palágyi %A György Kovács %A Gábor Németh %E Antonios Gasteratos %E Markus Vincze %E John K Tsotsos %X

Skeleton is a shape descriptor which summarizes the general formof objects. It can be expressed in terms of the fundamental morphological operations. The limitation of that characterization is that its construction based on digital disks such that cannot provide good approximation to the Euclidean disks. In this paper we define a new type of skeleton based on neighborhood sequences that is much closer to the Euclidean skeleton. A novel method for quantitative comparison of skeletonization algorithms is also proposed. © 2008 Springer- Verlag Berlin Heidelberg.

%B Computer Vision Systems %I Springer Verlag %C Santorini, Greece %P 333 - 342 %8 May 2008 %@ 978-3-540-79546-9 %G eng %9 Conference paper %R 10.1007/978-3-540-79547-6_32 %0 Book Section %B Joint Hungarian-Austrian conference on image processing and pattern recognition. 5th conference of the Hungarian Association for Image Processing and Pattern Recognition (KÉPAF), 29th workshop of the Austrian Association for Pattern Reco %D 2005 %T A 2-Subfield 3D Thinning Algorithm for Extracting Medial Curves %A Kálmán Palágyi %E Dmitrij Chetverikov %E László Czúni %E Markus Vincze %B Joint Hungarian-Austrian conference on image processing and pattern recognition. 5th conference of the Hungarian Association for Image Processing and Pattern Recognition (KÉPAF), 29th workshop of the Austrian Association for Pattern Reco %I OCG %C Vienna %P 135 - 142 %8 2005/// %G eng %0 Book Section %B Joint Hungarian-Austrian conference on image processing and pattern recognition. 5th conference of the Hungarian Association for Image Processing and Pattern Recognition (KÉPAF), 29th workshop of the Austrian Association for Pattern Reco %D 2005 %T Method for Automatically Segmenting the Spinal Cord and Canal from 3D CT Images %A László Gábor Nyúl %A Judit Kanyó %A Eörs Máté %A Géza Makay %A Emese Balogh %A Márta Fidrich %A Attila Kuba %E Dmitrij Chetverikov %E László Czúni %E Markus Vincze %X We present two approaches for automatically segmenting thespinal cord/canal from native CT images of the thorax region containing the spine. Different strategies are included to handle images where only part of the spinal column is visible. The algorithms require one seed point given on a slice located in the middle region of the spine, and the rest is automatic. The spatial extent of the spinal cord/canal is determined automatically using anatomical information for segmenting the spinal canal while active contours are applied if the spinal cord is to be segmented. Both methods work in 2D and use propagated information from neighboring slices. They are also very rapid in execution, that means an efficient, user-friendly workflow. The methods were evaluated by radiologists and were found to be useful and met the accuracy and repeatability requirements for the particular task. %B Joint Hungarian-Austrian conference on image processing and pattern recognition. 5th conference of the Hungarian Association for Image Processing and Pattern Recognition (KÉPAF), 29th workshop of the Austrian Association for Pattern Reco %I OCG %C Vienna %P 311 - 318 %8 2005/// %G eng %0 Book Section %B Joint Hungarian-Austrian conference on image processing and pattern recognition. 5th conference of the Hungarian Association for Image Processing and Pattern Recognition (KÉPAF), 29th workshop of the Austrian Association for Pattern Reco %D 2005 %T Shape Moments for Region Based Active Contours %A Peter Horvath %A Avik Bhattacharya %A Ian Jermyn %A Josiane Zerubia %A Zoltan Kato %E Dmitrij Chetverikov %E László Czúni %E Markus Vincze %B Joint Hungarian-Austrian conference on image processing and pattern recognition. 5th conference of the Hungarian Association for Image Processing and Pattern Recognition (KÉPAF), 29th workshop of the Austrian Association for Pattern Reco %I OCG %C Vienna %P 187 - 194 %8 2005/// %G eng %0 Book Section %B Joint Hungarian-Austrian conference on image processing and pattern recognition. 5th conference of the Hungarian Association for Image Processing and Pattern Recognition (KÉPAF), 29th workshop of the Austrian Association for Pattern Reco %D 2005 %T Video Object Segmentation Using a Multicue Markovian Model %A Zoltan Kato %A Ting Chuen Pong %E Dmitrij Chetverikov %E László Czúni %E Markus Vincze %B Joint Hungarian-Austrian conference on image processing and pattern recognition. 5th conference of the Hungarian Association for Image Processing and Pattern Recognition (KÉPAF), 29th workshop of the Austrian Association for Pattern Reco %I OCG %C Vienna %P 111 - 118 %8 2005/// %G eng