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EU Centre of ExcellenceISO 9001

ERCIMW3C MemberFraunhofer Project Center

István Petrás, Ph.D., senior research fellow
István Petrás
Address: 1111 Budapest, Lágymányosi u. 11.
Mail address: 1111 Budapest, Kende u. 13-17.
Room number: L 104
Phone: +36 1 279 6287
E-mail: petras.istvanEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Department: Data Mining and Search Group

Publications

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Analog addition/subtraction on the CNN-UM chip with short-time superimposition of input signals
Authors: Kim, H.; Roska, Tamás; Son, H.; Petrás, István
Date: 2003.
Published by: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS (Page: 4)
A Bio-inspired two-layer mixed-signal flexible programmable chip for early vision
Authors: Carmona, R.; Jiménez-Garrido, F.; Domínguez-Castro, R.; Espejo, S.; Roska, Tamás; Rekeczky, Csaba; Petrás, István; Rodríguez-Vázguez, Á.
Date: 2003.
Published by: IEEE TRANSACTIONS ON NEURAL NETWORKS (Page: 1)
Active wave computing on silicon: chip experiments
Authors: Rekeczky, Csaba; Petrás, István; Szatmári, István; Földesy, Péter
Date: 2003.
Published by: Circuit Theory and Design. Proceedings of the 16th European Conference ECCTD'03. Vol. 2. (Page: 4)
Second-order neural core for bioinspired focal-plane dynamic image processing in CMOS
Authors: Carmona-Galán, R.; Jiménez-Garrido, F.; Domínguez-Mata, CM; Domínguez-Castro, R.; Espejo Meana, S.; Petrás, István; Rodríguez-Vázquez, Á.
Date: 2004.
Published by: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS (Page: 9)
Receptive field atlas and related CNN models
Authors: Gál, Viktor; Hámori, J.; Roska, Tamás; Bálya, Dávid; Borostyánkői, ZS; Brendel, M.; Lotz, K.; Négyessy, L.; Orzó, László; Petrás, István; Rekeczky, Csaba; Takács, J.; Venetiáner, P.; Vidnyánszky, Z.; Zarándy, Ákos
Date: 2004.
Published by: INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS (Page: 5)
Exploration of spatial-temporal dynamic phenomena in a 32
Authors: Petrás, István; Rekeczky, Csaba; Roska, Tamás; Camora, R.; Jiménez-Garrido, F.; Rodríguez-Vázquez, A.
Date: 2003.
Published by: JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS (Page: 6)
New spatial-temporal patterns and the first programmable on-chip bifurcation test bed
Authors: Petrás, István; Roska, Tamás; Chua, LO
Date: 2003.
Published by: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS (Page: 6)
Application of direction constrained and bipolar waves for pattern recognition
Authors: Petrás, István; Roska, Tamás
Date: 2000.
Published by: Proceedings of the 6th IEEE international workshop on cellular neural networks and their applications. (CNNA 2000). Catania, 2000. (Page: 3)
New spatial-temporal patterns and the first programmable on-chip bifurcation test-bed. (Research report of the Analogical and Neural Computing Laboratory DNS-6-2001.)
Authors: Petrás, István; Roska, Tamás; Chua, LO
Date: 2001.
Published by: New spatial-temporal patterns and the first programmable on-chip bifurcation test-bed. (Research report of the Analogical and Neural Computing Laboratory DNS-6-2001.)
New spatial-temporal patterns and the first programmable on-chip bifurcation test-bed
Authors: Petrás, István; Roska, Tamás; Chua, LO
Editor: Tetzlaff, R
Date: 2002.
Published by: Cellular Neural Networks and Their Applications. Proceedings of the 7th IEEE International Workshop (Page: 2)
On the effect of boundary conditions on CNN dynamics: stability and instability; bifurcation processes and chaotic phenomena
Authors: Petrás, István; Chacco, P.; Gilli, M.; Roska, Tamás
Date: 2003.
Published by: Circuits and Systems, 2003. Proceedings of the ISCAS '03, Vol. 3. (Page: 5)
Interest point and segmentation-based photo annotation
Authors: Daróczy, Bálint Zoltán; Petrás, István; Benczúr, András; Fekete, Zsolt; Nemeskey, Dávid Márk; Siklósi, Dávid; Weiner, Zsuzsa
Date: 2010.
Published by: CLEF 2009 workshop. Multilingual information access evaluation II. Multimedia experiments. Corfu, 2009. (Lecture notes in computer science 6242.) (Page: 3)
Pattern formation on the prototype complex-cell CNN-UM chip (CACE1K)
Authors: Bálya, Dávid; Petrás, István; Rekeczky, Csaba
Date: 2004.
Published by: Circuits and Systems. Proceedings of the International Symposium ISCAS '04. Vol. 3. (Page: 5)
SZTAKI @ ImageCLEF 2009
Authors: Daróczy, Bálint Zoltán; Petrás, István; Benczúr, András; Fekete, Zsolt; Nemeskey, Dávid Márk; Siklósi, Dávid; Weiner, Zsuzsa
Date: 2009.
Published by: 10th Workshop of the Cross-Language Evaluation Forum, CLEF 2009
Implementing the multilayer retinal model on the complex-cell CNN-UM chip prototype
Authors: Bálya, Dávid; Petrás, István; Roska, Tamás; Carmona, R.; Rodríguez-Vázquez, A.
Date: 2004.
Published by: INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS (Page: 4)
Digital video event detector framework for surveillance applications
SZTAKI @ TRECVID 2010
Authors: Daróczy, Bálint Zoltán; Falavigna, Daniele; Gretter, Roberto; Nemeskey, Dávid Márk; Petrás, István; Pethes, Róbert; Benczúr, András
Date: 2010.
Published by: TRECVID 2010 Working Notes.
SZTAKI @ ImageCLEF 2010
Authors: Daróczy, Bálint Zoltán; Petrás, István; Benczúr, András; Nemeskey, Dávid Márk; Pethes, Róbert
Date: 2010.
Published by: CLEF 2010. Conference on multilingual and multimodal information access evaluation. Notebook Papers of CLEF 2010 LABs and workshops. Padua, 2010. (Page: 1)
Behavior and event detection for annotation and surveillance
SZTAKI @ TRECVID 2009
CNN as curve shortening flow computer
Authors: Petrás, István; Roska, Tamás
Editor: Roska, T; Gili, M; Shi, B; Zarándy, Á
Date: 2004.
Published by: Cellular Neural Networks and their Applications. Proceedings of the 8th IEEE international workshop Budapest (CNNA 2004) (Page: 4)
Video surveillance framework for crime prevention and event indexing
Authors: Kovács, Levente Attila; Szlávik, Zoltán; Benedek, Csaba; Havasi, László Rajmund; Petrás, István; Losteiner, Dávid; Utasi, Ákos; Licsár, Attlia; Czúni, László; Szirányi, Tamás
Date: 2008.
Published by: ICT4JUSTICE workshop. Thessaloniki, 2008.
Complex dynamics in one-dimensional CNNs
Authors: Petrás, István; Marco, Gilli
Date: 2006.
Published by: Int. Journal of Circuit Theory and Applications (Page: 3)
Complex dynamics in one-dimensional CNNs
Authors: Petrás, István; Gilli, C.
Date: 2006.
Published by: International Journal of Circuit Theory and Applications (Page: 3)
Flexible test-bed for unusual behavior detection
Authors: Petrás, István; Kovács, Levente Attila; Töreyin, B. U.; Beleznai, Cs.; Szlávik, Zoltán; Güdükbay, U.; Dedeoglu, Y.; Havasi, László Rajmund; Cetin, A. E.; Pardás, M.; Szirányi, Tamás; Canton-Ferrer, C.
Editor: Sebe, N.; Worring, M.
Date: 2007.
Published by: CIVR 2007. Proceedings of the 6th ACM international conference on image and video retrieval. Amsterdam, 2007.
The computational infrastructure for cellular visual microprocessors
Authors: Szolgay, Péter; Zarándy, Ákos; Zöld, S.; Roska, Tamás; Földesy, Péter; Kék, László; Kozek, T.; László, K.; Petrás, István; Rekeczky, Csaba; Szatmári, István; Bálya, Dávid
Date: 1999.
Published by: MicroNeuro '99. Proceedings of the seventh international conference on microelectronics for neural, fuzzy, and bio-inspired systems. Granada, 1999. (Page: 5)
The CADETWin application software design system - a tutorial
Authors: Szolgay, Péter; László, K.; Kék, László; Kozek, T.; Nemes, L.; Petrás, István; Rekeczky, Csaba; Szatmári, István; Zarándy, Ákos; Zöld, S.; Roska, Tamás
Editor: Roska, T
Date: 1999.
Published by: Design automation day on cellular visual microprocessor. Stresa, 1999. (Page: 5)
CNN chip prototyping and development systems
Authors: Zarándy, Ákos; Roska, Tamás; Szolgay, Péter; Zöld, S.; Földesy, Péter; Petrás, István
Editor: Roska, T
Date: 1999.
Published by: Design automation day on cellular visual microprocessor. Stresa, 1999. (Page: 6)

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