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Selected Publications of the Department of Image Processing and Computer Graphics of the year 1992

Articles in journal or book chapters

1. Endre Katona. Cellular Processing. In Branco Soucek and the IRIS Group, editors, Fuzzy, Holographic and Parallel Intelligence, pages 215-230. John Wiley & Sons, Inc., New York, USA, 1992. [PDF]
   Abstract: How can we use a homogeneous array of elementary processors (cells) to solve different computational problems? An early answer to this question was the cellular automata concept of J. von Neumann. Later on cellular arrays appeared in (V)LSI circuit design, in Programmable Gate Arrays, different cellular automata realizations have been proposed, and the notion of systolic arrays was created. On the other hand, different massively parallel machines have been constructed (MPP, DAP, GAPP, etc.) based on cellular computing too. This chapter gives an overview of cellular processing with special respect to cellular processors developed by Cellware Ltd. Section 6.2 sketches a general cellular array model forming a common theoretical frame for very different cellular array machines. Sections 6.3 and 6.4 describe basic hardware implementation techniques of cellular arrays illustrated on cellprocessors M1, X1 and SP1 of Cellware Ltd. Sections 6.5 and 6.6 discuss how to realize pipeline processing in cellular arrays. Problems of modeling, partitioning and I/O management are examined. The different cellular array machines are compared on the basis of the general model of Section 6.2, connections are discovered between inhomogeneity, efficiency and programming methodology.
   @INCOLLECTION{Katona1992,
   AUTHOR = {Endre Katona},
   BOOKTITLE = {Fuzzy, Holographic and Parallel Intelligence},
   PUBLISHER = {John Wiley & Sons, Inc.},
   TITLE = {Cellular Processing},
   YEAR = {1992},
   ADDRESS = {New York, USA},
   EDITOR = {Branco Soucek and the IRIS Group},
   PAGES = {215-230},
   }
   


2. Attila Kuba, Arpad Makay, Eors Mate, and Laszlo Csernay. Data processing system for nuclear medicine images. International Journal of Imaging Systems and Technology, 4:51-61, 1992. [PDF] [doi:10.1002/ima.1850040111]
   Abstract: A software system (MicroSegams) is described which is able to acquire, store, present, and process nuclear medicine images. The most important basic procedures (e.g., image acquisition from a gamma camera, selection of a study from the catalogue, drawing regions of interest, etc.) and complete clinical procedures (e.g., renography, brain perfusion, etc.) can be activated directly from the system menu by mouse. The language sLan (a subset of programming language C containing more than 200 elementary functions) can also be used to write new procedures to be interpreted or compiled. The system is offered as a basic tool for the performance of static, dynamic, gated, or tomographic investigations in clinical practice.
   @ARTICLE{Kuba1992,
   AUTHOR = {Attila Kuba and Arpad Makay and Eors Mate and Laszlo Csernay},
   JOURNAL = {International Journal of Imaging Systems and Technology},
   TITLE = {Data processing system for nuclear medicine images},
   YEAR = {1992},
   PAGES = {51-61},
   VOLUME = {4},
   DOI = {10.1002/ima.1850040111},
   }
   


3. Mark F. Lythgoe, Hugh Davies, Attila Kuba, Mihaly Toth-Abonyi, and Isky Gordon. Can Dynamic Krypton-81m Imaging Separate Regional Ventilation and Volume?. The Journal of Nuclear Medicine, 33(11):1935-1939, 1992. [PDF]
   Abstract: This study explores the assumption that 81mKr static images represent regional ventilation. Dynamic acquisition of 81mKr ventilation images permits creation of time-activity curves and the possible separation of the confounding influences of ventilation and volume. By using a two-compartment gas mixing lung phantom, the results demonstrate that both total and tidal 81mKr are closely related to regional ventilation. In 61 children and 15 adult volunteers, there was good agreement between fractional ventilation assessed by total and tidal 81mKr. The dynamic steady-state ventilation image can be analyzed to separate tidally exchanged and resident 81mKr. This may allow regional ventilation to be distinguished from regional volume.
   @ARTICLE{Lythgoe1992,
   AUTHOR = {Mark F. Lythgoe and Hugh Davies and Attila Kuba and Mihaly Toth-Abonyi and Isky Gordon},
   JOURNAL = {The Journal of Nuclear Medicine},
   TITLE = {Can Dynamic Krypton-81m Imaging Separate Regional Ventilation and Volume?},
   YEAR = {1992},
   NUMBER = {11},
   PAGES = {1935-1939},
   VOLUME = {33},
   }
   


4. Eors Mate, Janos Mester, Laszlo Csernay, Attila Kuba, Madani Shahram, and Arpad Makay. Three-dimensional presentation of the Fourier amplitude and phase: a fast display method for gated cardiac blood-pool SPECT. The Journal of Nuclear Medicine, 33(3):458-462, March 1992. [WWW] [PDF]
   Abstract: The routine clinical use of gated SPECT is inhibited by sophisticated, time-consuming processing techniques. The present paper describes a new technique for the simultaneous three-dimensional presentation of the amplitude and phase of the first Fourier harmonics, with the aim of obtaining detailed information about the ventricular motion in a relatively short time, from each angle of view of three-dimensional space. The method is simple and robust, and processing is automatic. It does not need carefully elaborated techniques for surface determination, because the cardiac surface is merely used as a reference skeleton onto which the functional information of amplitude and phase is mapped. The Fourier analysis before reconstruction results in running times shorter than 15 min and may further open the way for the routine use of gated SPECT.
   @ARTICLE{Mate1992,
   AUTHOR = {Eors Mate and Janos Mester and Laszlo Csernay and Attila Kuba and Madani Shahram and Arpad Makay},
   JOURNAL = {The Journal of Nuclear Medicine},
   TITLE = {Three-dimensional presentation of the Fourier amplitude and phase: a fast display method for gated cardiac blood-pool SPECT},
   YEAR = {1992},
   MONTH = {March},
   NUMBER = {3},
   PAGES = {458-462},
   VOLUME = {33},
   URL = {http://jnm.snmjournals.org/cgi/reprint/33/3/458.pdf},
   }
   

Conference articles

1. Zoltan Kato, Josiane Zerubia, and Mark Berthod. Satellite Image Classification Using a Modified Metropolis Dynamics. In Proceedings of the International Conference on Acoustics, Speech and Signal Processing, volume 3, San-Francisco, California, USA, pages 573-576, March 1992. IEEE. [PS]
   Abstract: In this paper, we present a pseudo-stochastic variation of the Metropolis dynamics for combinatorial optimization in image classification using Markov Random Fields. At high temperature, the behavior of our algorithm is similar to the stochastic ones. However, if the temperature is less than a certain threshold, it becomes deterministic. The ``length'' of the ``pseudo-stochastic'' phase is controlled by a constant threshold used in the modified dynamics. The algorithm compares favorably to recent stochastic or deterministic methods and yields an approximate but usually good solution to the optimization problem. The algorithm runs on a Connection Machine. It is applied to standard pixel classification problem; objective and subjective comparisons with other algorithms have been made.
   @INPROCEEDINGS{Kato-etal92a,
   AUTHOR = {Zoltan Kato and Josiane Zerubia and Mark Berthod},
   BOOKTITLE = {Proceedings of the International Conference on Acoustics, Speech and Signal Processing},
   TITLE = {Satellite Image Classification Using a Modified Metropolis Dynamics},
   YEAR = {1992},
   ADDRESS = {San-Francisco, California, USA},
   MONTH = {March},
   ORGANIZATION = {IEEE},
   PAGES = {573-576},
   VOLUME = {3},
   PS = {../papers/icassp92.ps},
   }
   

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