Tobi Delbruck

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41 44/ 635 30 38
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I studied physics and applied math as an undergraduate in San Diego and then Computation in Neural Systems as a graduate student at Caltech. After projects with Christof Koch and David van Essen, I settled on building neuromorphic vision sensors with Carver Mead for my PhD work. After my graduate work, I went to Silicon Valley to work as a consultant on electronic imaging, first with Synaptics, and then with Arithmos, National Semiconductor and Foveon. I joined INI in 1998, together with Shih-Chii Liu. Aside from a major detour to work on the luminous tactile floor of INI's "Ada" contribution to the 2003 Swiss national exhibition, I have been working on developing neuromorphic vision sensors for real-world applications in machine vision. Together with my doctoral student Patrick Lichtsteiner, we achieved a breakthrough with the first highly functional Dynamic Vision Sensor event-based silicon retina in 2006. Since then, we have been evolving this technology and exploring its manifold applications in event-driven vision. In my spare time, I also enjoy reading, poker and card magic and like to play tennis and basketball.

Teaching

INI-404 Neuromorphic Engineering I
INI-405 Neuromorphic Engineering II
INI-425 Block: Computational Neuroscience
INI-433 Electronics for Physicists II (Digital)

Publications

2011

  • Abshire, P. and Bermak, A. and Berner, R. and Cauwenberghs, G. and Chen, S. and Christen, JB and Constandinou, T. and Culurciello, E. and Dandin, M. and Datta, T. and Delbruck, T. and Dudek, P. and Eftekhar, A. and Etienne-Cummings, R. and Indiveri, G. and Law M.K. and Linares-Barranco, B. and Tapson, J. and Tang, W. and Zhai, Y. Confession session: Learning from others mistakes, Circuits and Systems (ISCAS), 2011 IEEE International Symposium on 1149-1162, 2011
  • Berner, R. and Delbruck, T. Event-Based Pixel Sensitive to Changes of Color and Brightness, Circuits and Systems I: Regular Papers, IEEE Transactions on, 58:(7) 1581-1590, 2011
  • Drazen, D. and Lichtsteiner, P. and Haefliger, P. and Delbruck, T. and Jensen, A. Toward real-time particle tracking using an event-based dynamic vision sensor, Experiments in Fluids 1465-1469, 2011
  • Indiveri, G. and Linares-Barranco, B. and Hamilton, T.J. and Van Schaik, A. and Etienne-Cummings, R and Delbruck, T. and Liu, S.C. and Dudek, P. and Häfliger, P. and Renaud, S. and Schemmel, S. and Cauwenberghs, G. and Arthur, J. and Hynna, K. and Folowosele, F, and Saighi, S. and Serrano-Gottarredona, T. and Wijekoon, J. and Wang, Y., and Boahen, K. Neuromorphic silicon neuron circuits, Frontiers in neuroscience, 5:(73), 2011

2010

  • Berner, R and Delbruck, T Event-based color change pixel in standard CMOS, Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on 349-352, 2010
  • Delbruck, T and Berner, R and Lichtsteiner, P and Dualibe, C 32-bit Configurable bias current generator with sub-off-current capability, Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on 1647-1650, 2010
  • Delbruck, T and Koch, T and Berner, R and Hermansky, H Fully integrated 500uW speech detection wake-up circuit, Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on 2015-2018, 2010
  • Liu, S C and Delbruck, T Neuromorphic sensory systems, Current Opinion in Neurobiology, 20:(3) 288-295, 2010
  • Liu, S C and van Schaik, A and Minch, B A and Delbruck, T Event-based 64-channel binaural silicon cochlea with Q enhancement mechanisms, Proceedings of 2010 IEEE International Symposium on Circuits and Systems (ISCAS) : Paris, France, 30 May - 2 June 2010 2027-2030, 2010

2009

  • Boerlin, M and Delbruck, T and Eng, K Getting to Know Your Neighbors: Unsupervised Learning of Topography from Real-World, Event-Based Input, Neural Computation, 21:(1) 216-238, 2009
  • Conradt, J. and Berner, R. and Cook, M. and Delbruck, T. An Embedded AER Dynamic Vision Sensor for Low-Latency Pole Balancing, IEEE Workshop on Embedded Computer Vision (ECV09), Kyoto, Japan, 2009
  • Conradt, J and Cook, M and Berner, R and Lichtsteiner, P and Douglas, RJ and Delbruck , T A Pencil Balancing Robot using a Pair of AER Dynamic Vision Sensors, International Conference on Circuits and Systems (ISCAS) 781-785, 2009
  • Linares-Barranco, A. and Gomez-Rodriguez, F. and Jimenez, G. and Delbruck, T. and Berner, R. and Liu, S-C. Implementation of a time-warping AER mapper, Proceedings of IEEE International Symposium on Circuits and Systems 2886-2889, 2009
  • Nageswaran, Jayram Moorkanikara and Wang, Yingxue and Delbrueck, Tobi and Dutt, Nikil Computing spike-based convolutions on GPUs, EEE International Symposium on Circuits and Systems 2009 (ISCAS 2009) 1917-1920, 2009
  • Serrano-Gotarredona, R. and Oster, M. and Lichtsteiner, P. and Linares-Barranco, A. and Paz-Vicente, R. and Gomez-Rodriguez, F. and Camuñas-Mesa, L. and Berner, R. and Rivas, M. and Delbruck , T. and Liu, S-C. and Douglas, R. J. and Hafliger, P. and Moreno, G. and Civit, A. and Serrano-Gotarredona, T. and Acosta-Jimenez, A. and Linares-Barranco, B. CAVIAR: A 45k-Neuron, 5M-Synapse, 12G-connects/sec AER Hardware Sensory-Processing-Learning-Actuating System for High Speed Visual Object Recognition and Tracking, IEEE Transactions on Neural Networks, 20:(9) 1417-1438, 2009

2008

  • Berner, R and Lichtsteiner, P. and Delbruck, T. Self-timed vertacolor dichromatic vision sensor for low power pattern detection, IEEE International Symposium on Circuits and Systems (ISCAS 2008) 1032-1035, 2008
  • Conradt, J and Lichtsteiner, P and Berner, R and Delbruck, T and Douglas, RJ and Cook, M A Pencil Balancing Robot Using Only Spike-based Visual Input., Neural Information Processing Systems, 2008
  • Delbruck, T. Frame-free dynamic digital vision, Invited paper in International Symposium on Secure-Life Electronics, 1:(1) 21-26, 2008
  • Delbruck, T and Schrag, M and Boerlin, M and Eng, K Real-time Topology Learning, NIPS 2008 (Demonstration Track), 2008
  • Fu, Z. and Culurciello, E. and Lichtsteiner, P. and Delbruck, T. Fall detection using an address-event temporal contrast vision sensor, IEEE International Symposium on Circuits and Systems (ISCAS 2008) 424-427, 2008
  • Fu, Z. and Delbruck, T. and Lichtsteiner, P. and Culurciello, E. An address-event fall detector for assisted living applications, IEEE Transactions on Biomedical Circuits and Systems, 2:(2) 88-96, 2008
  • Lichtsteiner, P. and Posch, C. and Delbruck, T. A 128×128 120dB 15us Latency Asynchronous Temporal Contrast Vision Sensor, IEEE Journal of Solid State Circuits, 43:(2) 566-576, 2008
  • Indiveri, G. and Liu, S.-C. and Delbruck, T. and Douglas, R. Neuromorphic systems, The New Encyclopedia of Neuroscience 521-528, 2008

2007

  • Berner, R. and Delbruck, T. A 5 Meps $100 USB2.0 Address-Event Monitor-Sequencer Interface, IEEE International Symposium on Circuits and Systems (ISCAS 2007) 2451-2454, 2007
  • Chicca, E. and Whatley, A. M. and Lichtsteiner, P. and Dante, V. and Delbruck, T. and Del Giudice, P. and Douglas, R. J. and Indiveri, G. A multi-chip pulse-based neuromorphic infrastructure and its application to a model of orientation selectivity, IEEE Transactions on Circuits and Systems I, Regular Papers, 54:(5) 981-993, 2007
  • Delbruck, T. and Lichtsteiner, P. Fast sensory motor control based on event-based hybrid neuromorphic-procedural system, IEEE International Symposium on Circuits and Systems (ISCAS 2007) 845-848, 2007
  • Delbrück, T. and Whatley, A. M. and Douglas, R. and Eng, K. and Hepp, K. and Verschure, P. F. M. J. A tactile luminous floor for an interactive autonomous space , Robotics and Autonomous Systems, 55:(6) 433-443, 2007
  • Fasnacht, D. and Delbruck, T. Dichromatic spectral measurement circuit in vanilla CMOS, IEEE International Symposium on Circuits and Systems (ISCAS 2007) 3091-3094, 2007
  • Linares-Barranco, A. and Gomez-Rodriguez, F. and Jimenez, A. and Delbruck, T. and Lichtsteiner, P. Using FPGA for visuo-motor control with a silicon retina and a humanoid robot, IEEE International Symposium on Circuits and Systems (ISCAS 2007) 119-1195, 2007
  • Oster, M. and Lichtsteiner, P. and Delbruck, T. and Liu, S-C. A spike-based saccadic recognition system, 2007 IEEE International Symposium on Circuits and Systems (ISCAS 2007) 3083-3086, 2007

2006

2005

  • Delbruck, T. and Fenkart, A. and Zwicker, R. Using personal computers for enchanced presence detection in building automation, HCI International, 11th International Conference on Human-Computer Interaction, 2005
  • Delbruck, T and van Schaik, A Bias current generators with wide dynamic range, Analog Integrated Circuits and Signal Processing, 43:(3) 247-268, 2005
  • Grover, D. and Delbruck, T. and King, M. An eye tracking system using multiple near-infrared channels with special application to efficient eye-based communication, Thirteenth European Conference on Eye Movements ECEM13 36-39, 2005
  • Lichtsteiner, P and Delbruck, T 64x64 Event-Driven Logarithmic Temporal Derivative Silicon Retina, 2005 IEEE Workshop on Charge-Coupled Devices and Advanced Image Sensors 157-160, 2005
  • Lichtsteiner, P. and Delbruck, T. A 64x64 AER Logarithmic temporal derivative silicon retina, Research in Microelectronics and Electronics, 2005 PhD (PRIME 2005) , 2: 202-205, 2005
  • Serrano-Gotarredona, R. and Oster, M. and Lichtsteiner, P. and Linares-Barranco, A. and Paz-Vincent, R. and Gómez-Rodríguez, F. and Kolle Riis, H. and Delbrück, T. and Liu, S. C. and Zahnd, S. and Whatley, A. M. and Douglas, R. and Häfliger, P. and Jimenez-Moreno, G. and Civit, A. and Serrano-Gotarredona, T. and Acosta-Jiménez, A. and Linares-Barranco, B. AER Building Blocks for Multi-Layer Multi-Chip Neuromorphic Vision Systems, Advances in Neural Information Processing Systems (NIPS), 18: 1217-1224, 2005

2004

  • Delbruck, T. and Liu, S-C. A silicon visual system as a model animal , Vision Research, 44:(17) 2083-2089, 2004
  • Delbruck, T. and Oberhof, D. Self biased low power adaptive photoreceptor, 2004 IEEE Internation Symposium on Circuits and Systems IV-844-847, 2004
  • Delbruck, T. and Oberhoff, D. Self biasing low power adaptive photoreceptor, 2004 IEEE International Symposium on Circuits and Systems (ISCAS 2004) IV-844-847, 2004
  • Delbruck, T. and van Schaik, A. Bias current generators with wide dynamic range, 2004 IEEE International Symposium on Circuits and Systems (ISCAS 2004) I-337-340, 2004
  • Lichtsteiner, P. and Kramer, J. and Delbruck, T. Improved on/off temporally differentiating address-event imager, ICECS 2004. Proceedings of the 2004 11th IEEE International Conference on Electronics, Circuits and Systems 211-214, 2004

2003

  • Delbruck, T. and Eng, K. and Baebler, A. and Bernardet, U. and Blanchard, M. and Briska, A. and Costa, M. and Douglas, R. and Hepp, K. and Klein, D. and Manzolli, J. and Mintz, M. and Roth, F. and Rutishauser, U. and Wassermann, K. and Wittmann, A. and Whatley, A. M. and Wyss, R. and Verschure, P. F. M. J. Ada: a playful interactive space, Human-Computer Interaction --- INTERACT'03 : IFIP TC13 International Conference on Human-Computer Interaction, 1st-5th September 2003, Zürich, Switzerland. 989-992, 2003
  • Eng, K. and Baebler, A. and Bernardet, U. and Blanchard, M. and Costa, M. and Delbruck, T. and Douglas, R. J. and Hepp, K. and Klein, D. and Manzolli, J. and Mintz, M. and Roth, F. and Rutishauser, U. and Wassermann, K. and Whatley, A. M. and Wittmann, A. and Wyss, R. and Verschure, P. F. M. J. Ada - Intelligent Space: An artificial creature for the Swiss Expo.02, Proceedings of the 2003 IEEE International Conference on Robotics and Automation (ICRA 2003), 3: 4154–4159, 2003
  • Eng, K. and Klein, D. and Baebler, A. and Bernardet, U. and Blanchard, M. and Costa, M. and Delbruck, T. and Douglas, R. J. and Hepp, K. and Manzolli, J. and Mintz, M. and Roth, F. and Rutishauser, U. and Wassermann, K. and Whatley, A. M. and Wittmann, A. and Wyss, R. and Verschure, P. F. M. J. Design for a brain revisited: The neuromorphic design and functionality of the interactive space Ada, Reviews in the Neurosciences, 14:(1-2) 145-180, 2003
  • Zahnd, S and Lichtsteiner, P and Delbruck, T Integrated vision sensor for detecting boundary crossings, International Symposium on Circuits and Systems (ISCAS), II: 376, 2003

2002

  • Eng, K. and Bäbler, A. and Bernardet, U. and Blanchard, M. and Briska, A. and Conradt, J. and Costa, M. and Delbrück, T. and Douglas, R. J. and Hepp, K. and Klein, D. and Manzolli, J. and Mintz, M. and Netter, T. and Roth, F. and Rutishauser, U. and Wassermann, K. and Whatley, A. M. and Wittmann, A. and Wyss, R. and Verschure, P. F. M. J. Ada: Constructing a Synthetic Organism, Proceedings of the 2002 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2002), EPFL, Lausanne, Switzerland, 2: 1808-1813, 2002
  • Liu, S-C. and Kramer, J. and Indiveri, G. and Delbruck, T. and Douglas, R. Orientation-selective aVLSI spiking neurons, Advances in Neural Information Processing Systems, 14:, 2002
  • Zahnd, S and Lichtsteiner, P and Delbrück, T Integrated vision sensor that detects objects crossing its boundaries, ISCAS2003, 2002
  • Liu, S-C. and Kramer, J. and Indiveri, G. and Delbruck, T. and Douglas, R. Analog VLSI: Circuits and Principles, 2002

2001

  • Delbruck, T and Liu, S-C. and Chicca, E and Ricci, GM and Bovet, S A Retina/V1 simple cell chip for physiology experiment design or classroom demonstration, IEEE CCD and AIS meeting, June 7-9, 2001, Lake Tahoe, California , 2001
  • Eng, K. and Baebler, A. and Bernardet, U. and Blanchard, M. and Briska, A. and Costa, M. and Delbruck, T. and Douglas, R. and Hepp, K. and Klein, D. and Manzolli, J. and Mintz, M. and Netter, T. and Roth, F. and Wassermann, K. and Whatley, A. and Wittmann, A. and Verschure, P. Ada - Buildings as Organisms, Game, Set and Match (Proceedings), Faculty of Architecture, TU Delft, 2001
  • Liu, S-C. and Kramer, J. and Indiveri, G. and Delbruck, T. and Burg, T. and Douglas, R. Orientation-selective aVLSI spiking neurons, Neural Networks, 14:(6/7) 629-643, 2001

2000

  • Delbruck, T Silicon retina for autofocus, ISCAS 2000, Geneva, Switzerland, May 27-31, 2000 IV-393-396, 2000

1997

  • Delbrück, T. and Mascarenhas, M. and Chi, M. and Bergemont, A. and Mead, C. Pulsed bipolar CMOS imager, IEEE CCD and AIS Meeting, Brugge, Belgium, June 5-7, 1997, 1997

1994

  • Delbrück, T. and Mead, C.A. Analog VLSI adaptive logarithmic wide-dynamic-range photoreceptor, Procedings of the International Circuits and Systems Meeting, 1994

1993

  • Delbrück, T. Silicon Retina with Correlation-Based, Velocity-Tuned Pixels, IEEE Transactions on Neural Networks, 4: 529-541, 1993
  • Sarpeshkar, R. and Delbrück, T. and Mead, C. White noise in MOS transistors and resistors, IEEE Circuits and Devices 23-29, 1993

1991

  • Benson, R.G. and Delbrück, T. Direction Selective Silicon Retina that uses Null Inhibition, Advances in Neural Information Processing Systems 4 756-763, 1991
  • Delbrück, T. ``Bump'' circuits for computing similarity and dissimilarity of analog voltages, Proc. IJCNN I-475-479, 1991
  • Delbrück, T. and Mead, C.A. Time-derivative adaptive silicon photoreceptor array, Infrared Sensors: Detectors, Electronics, and Signal Processing, 1541: 92-99, 1991
  • Mead, C.A. and Delbrück, T. Scanners for Visualizing Activity of Analog VLSI Circuitry, Analog Integrated Circuits and Signal Processing, 1: 93-106, 1991

1989

  • Mahowald, M. and Delbrück, T. Cooperative stereo matching using static and dynamic image features, Analog VLSI Implementation of Neural Systems 213-238, 1989
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