Raphael Berner

Postdoc -- ended Jun 2013
Work phone:
044 635 30 94

After studying Electrical Engineering at ETH Zurich, I joined INI for doing a PhD under the supervision of Prof. Tobi Delbruck. During my Phd and in my current position as a postdoc I have been working mostly on pixel architectures for neuromorphic vision sensors and AER communication circuits.

I am very impressed by the efficiency and complexity of biological sensor, especially the retina. In our work we are trying to implement some of the concepts found in biology in artificial vision sensors.
I am working on different aspects of these dynamic vision sensors. On the pixel level, we are shrinking the pixel to achieve higher resolution as well as implementing new functionality like color sensitivity and sustained intensity level readout. On the chip level we are developing new communication circuits to increase communication bandwidth. On the camera level I am working on PCBs and firmware to interface our chips.


Tobi Delbruck



  • Li, C. and Brandli, C. and Berner, R. and Liu, H. and Yang, M. and Liu, S.-C. and Delbruck, T. Design of an RGBW Color VGA Rolling and Global Shutter Dynamic and Active-Pixel Vision Sensor, IEEE International Symposium on Circuits and Systems (ISCAS) 718 - 721 , 2015




  • 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


  • 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


  • 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 pdf
  • 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 pdf
  • 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 pdf
  • 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/s 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



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