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EU Centre of ExcellenceISO 9001

ERCIMW3C MemberFraunhofer Project Center

László Orzó, Ph.D., senior research fellow
László Orzó
Address: 1111 Budapest, Kende u. 13-17.
Room number: K 329
Phone: +36 1 279 6000/ 7182
Fax: +36 1 209 5264
E-mail: orzo.laszloEZT_TOROLJE_KI@EZT_TOROLJE_KIsztaki.mta.hu
Department: Cellular Sensory and Optical Wave Computing Laboratory

Curriculum Vitae
László Orzó PhD

Contact Information:
Home: Visegrádi 13, Budapest, Hungary Phone: (+36-1) -7896271
Mobil: (+36-20)-3687576
Office: Computer and Automation Research Institute (CARI) Phone: (+36-1) -279-6135
Kende 13-17, 1111, Budapest, Hungary Fax: (+36 1) -209-5264
E-Mail: orzo.laszlo@sztaki.mta.hu
Carrier objectives
To find a challenging position to meet my fields of interests, my competencies, capabilities, skills, education and experience.
Personal Information
Nationality: Hungarian
Resident of: Hungary
Birth date: 16 Sept, 1964
Gender: Male;
Marital status: Single
Professional Experience
DHM project: A color Digital Holographic Microscope is developed for water monitoring application. Parallel processing (using stream processors, GPU, CUDA) is applied to achieve real time reconstruction of the objects in the measured holograms.
COASLM project: A combined optically addressable spatial light modulator is constructed that merge the capabilities of a high speed CMOS sensor, a high performance LCD micro display with FPGA based control and real time processing. The developed device performance is higher than any contemporary competitors. It is to implement affordable adaptive optics.
LAPTOP POAC project: Implementation of POAC, a programmable laptop sized optical correlator, using real time, parallel dynamic hologram recording and recall (using different wavelengths). An adaptive target tracking algorithm was proposed and implemented.
OptDocSec project: Simple optical security device is constructed, which is based on a pattern of properly positioned pseudo random diffractive elements which can be easily verified by matching an appropriate optical spatial filter (optical keys).
POAC project: Implementation of a Programmable Opto-electronic Analogic Computer. A new type of programmable optical correlator architecture.
Visual information processing and modeling: Reconstruction features of preprocessed nonlinearly tuned data, preprocessing effects on data compression.
Electrophysiology: Single cell recording from Tiger Salamander retinas (Frank Werblin’s Lab., MCB, UC Berkeley).
Modeling Neural Networks: Neural coding, Associative memories, Preprocessing, Noise tolerance.
Education
PhD in Biology (Neurobiology), Eötvös Roland University Faculty of Sciences, Post Graduate School. In the Neurobiology of Behavior program, Budapest, 2000, Thesis: "Modeling some early steps of the brain information processing."
Diploma in Physics (Biophysics), Eötvös Roland University Faculty of Sciences, Budapest, 1984-89, Thesis: "Investigation of the P300 component of the evoked potential in cat".
Employment record
Computer and Automation Research Institute, Hungarian Academy of Sciences - since 1999.
One year practice in electrophysiology at Frank Werblin’s laboratory, MCB department, UC. Berkeley, California (1993).
Neurobiology group of the SOTE-EKSZ, Hungarian Academy of Sciences - 1989-1999
Current position
Senior Research Fellow at Analogical & Neural Computing Systems Laboratory, Computer and Automation Institute, Hungarian Academy of Sciences - (since 1999)
Past positions
Senior Research Fellow (since 2001)
Research Fellow (1999-2000)
Junior Research Fellow (1989-99)
Fields of interest
Theoretical Neuroscience: Neural Networks, Neural code, Associative memories, Visual information processing, High Speed Image Processing, Optical Computing, Digital Holography.
Skills
Skill Level Years Practiced
MS Office (Word, PowerPoint, etc.)Intermediate 12
MATLAB Intermediate 9
DELPHI Intermediate 6
CUDA Intermediate 3
C++ Intermediate 3
HDL (Verilog, FPGA, Xilinx ISE). Intermediate 2
Languages
Language Level
Hungarian Native
English Expert
Russian Elementary
French Intermediate (Read)
Publications
Author or co-author of more than 25 publications, out of these 17 published in refereed journals or conference proceedings besides two patents.
References
Reference Relation Phone E-Mail
Elemér Lábos Neurobiology Group of SOTE-EKSZ 36-1-2156920 labos@sote.hu
Tamás Roska ANCL of CARI-HAS 36-1-2796151

Publications

[order by time] [order by categories ]

2012.

Afocal digital holographic microscopy and its advantages
Authors: Tőkés, Szabolcs; Orzó, László
Date: 2012.
Published by: Cellular Nanoscale Networks and Their Applications (CNNA), 2012
Advanced background elimination in digital holographic microscopy
Authors: Orzó, László; Fehér, András; Tőkés, Szabolcs
Date: 2012.
Published by: Cellular Nanoscale Networks and Their Applications (CNNA), 2012
In-line hologram segmentation for volumetric samples
Authors: Orzó, László; Göröcs, Zoltán Sándor; Fehér, András; Tőkés, Szabolcs
Date: 2012. 12. 31.
Published by: Applied Optics (Page: A)

2011.

High-speed, SAD based wavefront sensor architecture implementation on FPGA
Authors: Kincses, Zoltán; Orzó, László; Nagy, Zoltán; Mező, György; Szolgay, Péter
Date: 2011.
Published by: Journal of Signal Processing Systems (Page: 2)

2010.

GPU implementation of volume reconstruction and object detection in Digital Holographic Microscopy
Authors: Orzó, László; Göröcs, Zoltán Sándor; Szatmári, István
Date: 2010.
Published by: Cellular Nanoscale Networks and Their Applications (CNNA), 2010
Multi-color digital holographic microscope (DHM) for biological purposes
Authors: Göröcs, Zoltán Sándor; Kiss, Márton Zsolt; Tóth, Veronika Mária; Orzó, László; Tőkés, Szabolcs
Date: 2010. 01. 23.
Published by: Imaging, manipulation, and analysis of biomolecules, cells, and tissues VIII. San Francisco, 2010. (Proceedings of SPIE 7568.) (Page: 1)
GPU implementation of volume reconstruction and object detection in digital holographic microscopy
Authors: Orzó, László; Göröcs, Zoltán Sándor; Szatmári, István; Tőkés, Szabolcs
Editor: Roska, Tamás; Gilli, Marco; Zarándy, Ákos
Date: 2010. 02. 03.
Published by: 12th international workshop on cellular nanoscale networks and their applications. CNNA 2010. Berkeley, 2010. (Page: 4)
In-line color digital holographic microscope for water quality measurements
Authors: Göröcs, Zoltán Sándor; Orzó, László; Kiss, Márton Zsolt; Tóth, Veronika Mária; Tőkés, Szabolcs
Date: 2010. 06. 09.
Published by: International conference on laser applications in life sciences (LALS-2010). Oulu, 2010. (Proceedings of SPIE 7376.) (Page: 1)

2009.

Implementation of a parallel SAD based wavefront sensor architecture on FPGA
Authors: Kincses, Z.; Nagy, Zoltán; Orzó, László; Szolgay, Péter
Date: 2009. 08. 23.
Published by: ECCTD 2009. 19th European conference on circuit theory and design. Antalya, 2009. (Page: 8)

2008.

A nonlinear dynamics perspective of Wolfram's new kind of science. Part IX: Quasi-ergodicity
Authors: Chua, Leon O.; Pazienza, Giovanni Egidio; Orzó, László; Sbitnev, Valery I.; Shin, Jinwook
Date: 2008.
Published by: International Journal of Bifurcation and Chaos (Page: 2)
Digital holographic microscopy and CNN based image processing for biohazard detection
Combined optically addressable spatial light modulator for affordable adaptive optics
Authors: Orzó, László; Mező, György; Tőkés, Szabolcs; Radványi, András
Editor: Hubin, Norbert; Max, Claire E.; Wizinowich, Peter L.
Date: 2008.
Published by: Adaptive optics systems. Marseille, 2008. Part 2. (SPIE proceedings 7015.) (Page: 3)

2005.

POAC: optical computer for large data sets
Authors: Ayoub, Ahmed; Orzó, László; Tőkés, Szabolcs
Date: 2005.
Published by: ERCIM NEWS (Page: 7)

2004.

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)
A review of the programmable optical array computer (POAC). (Research report of the Analogical and Neural Computing Laboratory DNS-2-2004)
Authors: Ayoub, Ahmed; Tőkés, Szabolcs; Orzó, László
Date: 2004.
Published by: A review of the programmable optical array computer (POAC). (Research report of the Analogical and Neural Computing Laboratory DNS-2-2004)
POAC (programmable optical array computer) applied for target recognition and tracking
Authors: Tőkés, Szabolcs; Orzó, László; Ayoub, Ahmed; Roska, Tamás
Editor: Kamerman, GW; Willetts, DV
Date: 2004.
Published by: Military remote sensing. SPIE European symposium on optics/photonics in security and defense, London. (SPIE Proceedings 5613) (Page: 1)
Laptop POAC: a compact optical implementation of CNN-UM
Authors: Tőkés, Szabolcs; Orzó, László; Ayoub, Ahmed; 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: 7)
Evolution of the programmable optical array computer (POAC)
Authors: Ayoub, Ahmed; Tőkés, Szabolcs; Orzó, László; 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: 6)
A CNN image-compression algorithm for improved utilization of on-chip resources
Authors: Orzó, László; 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: 2)

2003.

A study of correlation process of a modified JTC for optical CNN
Authors: Ayoub, Ahmed; Tőkés, Szabolcs; Orzó, László
Date: 2003.
Published by: Circuit Theory and Design. Proceedings of the 16th European Conference ECCTD'03. Vol. 3. (Page: 1)
Two-wavelength POAC (Programmable Opto-Electronic Analogic Computer) using bacteriorhodopsin as dynamic holographic material
Authors: Tímár, G.; Rekeczky, Csaba; Orzó, László; Tőkés, Szabolcs
Date: 2003.
Published by: Circuit Theory and Design. Proceedings of the 16th European Conference ECCTD'03. Vol. 2. (Page: 7)
Two-wavelength POAC (Programmable Opto-Electronic Analogic Computer) using bacteriorhodopsin as dynamic holographic material
Authors: Tőkés, Szabolcs; Orzó, László; Ayoub, Ahmed
Date: 2003.
Published by: Circuit Theory and Design. Proceedings of the 16th European Conference ECCTD'03. Vol. 3. (Page: 9)
Simulation of optical CNN template library based on t2-JTC
Authors: Ayoub, Ahmed; Tőkés, Szabolcs; Orzó, László
Date: 2003.
Published by: Circuit Theory and Design. Proceedings of the 16th European Conference ECCTD'03. Vol. 3. (Page: 2)
Flexibly programmable opto-electronic analogic CNN computer (POAC) implementation applying an efficient, unconventional optical correlator architecture
Authors: Tőkés, Szabolcs; Orzó, László; Ayoub, Ahmed; Roska, Tamás
Date: 2003.
Published by: JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS (Page: 7)

2002.

Programmable optical CNN implementation based on the template pixels' angular coding
Authors: Tőkés, Szabolcs; Orzó, László; Roska, Tamás
Editor: Tetzlaff, R
Date: 2002.
Published by: Cellular Neural Networks and Their Applications. Proceedings of the 7th IEEE International Workshop (Page: 1)
Basic mammalian retinal effects on the prototype complex cell CNN uiversal machine
Authors: Orzó, László; Tőkés, Szabolcs; Roska, Tamás
Editor: Tetzlaff, R
Date: 2002.
Published by: Cellular Neural Networks and Their Applications. Proceedings of the 7th IEEE International Workshop (Page: 1)

2001.

An advanced joint Fourier transform correlator (JTC)
Authors: Tőkés, Szabolcs; Orzó, László; Török, L.; Ayoub, Ahmed; Roska, Tamás
Date: 2001.
Published by: Diffractive optics 2001. EOS topical meeting on diffractive optics. Budapest, 2001. (European Optical Society topical meeting digest series 30.) (Page: 1)
Programmable opto-electronic CNN implementation provides a new and powerful tool for image processing applications. (Research report of the Analogical and Neural Computing Laboratory DNS-9-2001.)
Authors: Tőkés, Szabolcs; Orzó, László; Roska, Tamás
Date: 2001.
Published by: Programmable opto-electronic CNN implementation provides a new and powerful tool for image processing applications. (Research report of the Analogical and Neural Computing Laboratory DNS-9-2001.)
Programmable analogic cellular optical computer using bacteriorhodopsin as analog rewriteable image memory
Authors: Tőkés, Szabolcs; Orzó, László; Váró, GY; Dér, A.; Ormos, P.; Roska, Tamás
Editor: Dér, A; Keszthelyi, L
Date: 2001.
Published by: Bioelectronic applications of photochromic pigments (NATO science series. Ser. 1. Life and behavioural sciences 335.) (Page: 5)
Design aspects of an optical correlator based CNN implementation
Authors: Tőkés, Szabolcs; Orzó, László; Roska, Tamás
Editor: Porra, V
Date: 2001.
Published by: Circuit paradigm in the 21st century. ECCTD '01. Proceedings of the 15th European conference on circuit theory and design. Espoo, 2001. Vol. 1. (Page: 3)
Dennis Gabor as the initiator of optical computing. Importance and prospects of optical computing and an optical implementation of the CCN-UM computer
Authors: Tőkés, Szabolcs; Orzó, László; Rekeczky, Csaba; Zarándy, Ákos; Roska, Tamás
Editor: Nagy, L
Date: 2001.
Published by: Magyar informatikusok II. világtalálkozója. Budapest, 2000. 1. köt. (Page: 1)

2000.

An optical CNN implementation with stored programmability
Authors: Tőkés, Szabolcs; Orzó, László; Rekeczky, Csaba; Roska, Tamás; Zarándy, Ákos
Date: 2000.
Published by: The 2000 IEEE international symposium on circuits and systems. Emerging technologies for the 21st century. ISCAS 2000. Geneva, 2000. Vol. 2. (Page: 1)
Optimal CNN templates for deconvolution
Authors: Orzó, László
Date: 2000.
Published by: Proceedings of the 6th IEEE international workshop on cellular neural networks and their applications. (CNNA 2000). Catania, 2000. (Page: 1)
Dennis Gabor as the initiator of optical computing: Importance and prospects of optical computing and an optical implementation of the CNN-UM computer
Authors: Tőkés, Szabolcs; Orzó, László; Rekeczky, Csaba; Zarándy, Ákos; Roska, Tamás
Date: 2000.
Published by: Dennis Gabor. On centenary of his birth. Dennis Gabor memorial conference and symposium on holography and high resolution measurement techniques including information processing and precision measurement techniques. Budapest, 2000.

1999.

Effects on the ganglion cell response nonlinear mapping on visual system's noise filtering characteristics
Authors: Orzó, László
Editor: Mira, J; Sánchez-Andrés, JV
Date: 1999.
Published by: Foundations and tools for neural modeling. International work-conference on artificial and natural neural networks, IWANN'99. Proceedings. Alicante, 1999. Vol. 1. ( Lecture notes in computer science, 1606.) (Page: 2)
Effects of the synaptic transmission's dynamics on possible neural codes
Authors: Orzó, László; Lábos, E.
Date: 1999.
Published by: The 3rd international workshop on neural coding '99. Osaka, 1999. (Page: 1)
CNN-based models for color vision and visual illusions
Authors: Zarándy, Ákos; Orzó, László; Grawes, E.; Werblin, F.
Date: 1999.
Published by: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS (Page: 2)

1998.

Dynamics of synaptic transmission and neural code
Authors: Orzó, László; Lábos, E.
Editor: Trappl, R
Date: 1998.
Published by: Cybernetics and systems '98. Proceedings of the fourteenth European meeting on cybernetics and systems research. Vienna, 1998. Vol.1. (Page: 3)
CNN models of receptive field dynamics of the central visual system neurons
Authors: Orzó, László; László, K.; Négyessy, L.; Hámori, J.; Roska, Tamás
Editor: Tavsanoglu, V
Date: 1998.
Published by: 1998 fifth IEEE international workshop on cellular neural networks and their applications. CNNA 98. Proceedings. London, 1998. (Page: 1)

1996.

CNN model of the feature-linked synchronized activities in the visual thalamo-cortical system.(Research report of the Neuromorphic Information Technology Graduate Center. NIT-2-1966.)
Authors: Orzó, László; Vidnyászky, Z.; Hámori, J.; Roska, Tamás
Date: 1996.
Published by: CNN model of the feature-linked synchronized activities in the visual thalamo-cortical system.(Research report of the Neuromorphic Information Technology Graduate Center. NIT-2-1966.)
CNN model of the feature-linked synchronized activities in the visual thalamo-cortical system
Authors: Orzó, László; Vidnyánszky, Z.; Hámori, J.; Roska, Tamás
Date: 1996.
Published by: 1996 fourth IEEE international workshop on Cellular Neural Networks and their applications proceedings. CNNA-96. Seville, 1996. (Page: 2)

1993.

The use of CNN models in the subcortical visual pathway
Authors: Roska, Tamás; Hámori, J.; Lábos, E.; Lotz, K.; Orzó, László; Takács, J.; Venetianer, PL; Vidnyánszky, Z.; Zarándy, Ákos
Date: 1993.
Published by: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS (Page: 1)

1992.

The use of CNN models in the visual parthway. Part II: The amacrine cell in the modified retina model, simple LGN effects and motion related illusions. (Reseach report of the Dual and Neural Computing Systems Laboratory DNS-9-1992.)
Authors: Roska, Tamás; Hámori, J.; Lábos, E.; Lotz, K.; Orzó, László; Takács, J.; Venetianer, P.; Vidnyánszky, Z.; Zarándy, Ákos
Date: 1992.
Published by: The use of CNN models in the visual parthway. Part II: The amacrine cell in the modified retina model, simple LGN effects and motion related illusions. (Reseach report of the Dual and Neural Computing Systems Laboratory DNS-9-1992.)
The use of CNN models in the subcortical visual pathway. (Reseach report of the Dual and Neural Computing Systems Laboratory DNS-16-1992)
Authors: Roska, Tamás; Hámori, J.; Lábos, E.; Lotz, K.; Orzó, László; Takács, J.; Venetianer, P.; Vidnyánszky, Z.; Zarándy, Ákos
Date: 1992.
Published by: The use of CNN models in the subcortical visual pathway. (Reseach report of the Dual and Neural Computing Systems Laboratory DNS-16-1992)

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