Category: Seminars and Conferences
State: Archived
December 3rd, 2019 at 9.00am

Energy and Accuracy Trade-Off in Designing Hardware Approximate Operators for Audio and Video Processing

Room C – Dept. of Electronics and Telecommunications (DET) - Sede storica

  • Abstract:
For almost 20 years the power wall of IC integration of high end (HPC) digital systems has been contended with. This wall arises from basic thermal and power density considerations on silicon materials and devices. New circuit design techniques are being explored in the other direction, i.e. research towards the power-bottom floor, where CMOS is still an unbeatable and flexible technology to make the internet of “everything” possible and cost- effective. In this Seminar we present IC design cases on applying approximate computing in the domain of digital audio filtering, image filters for edge detection, and on video coding operators, all targeting low power dedicated architectures. The energy consumption vs. accuracy trade-offs will be presented for at least 3 of such applications. At the other end, on the realm of any application which can tolerate very wide voltage-frequency scaling (VFS), the Seminar will address performance vs. energy efficiency trade-offs in the design of the VLSI digital circuits for the Internet-of-Things (IoT) hardware. These circuits operate at very different power-performance modes, from sub- MHz to peaks of hundreds of MHz, for the digital part.
  • Speaker’s Bio:
Sergio Bampi received the B.Sc in Electronics Engineering and the B.Sc. in Physics from the Federal Univ. of Rio Grande do Sul (UFRGS, 1979), and the M.Sc. and Ph.D. degrees in EE from Stanford University (USA) in 1986. Full professor in the Digital Systems and Microelectronics design fields at the Informatics Institute, member of the faculty since 1986. He served as Graduate Program Coordinator (2003-2007), head of research group and projects, technical director of the Microelectronics Center CEITEC (2005-2008) and is the past President of the FAPERGS Research Funding Foundation and of the SBMICRO Society (2002-2006). He is a former member of HP Inc. technical staff, and a visiting research faculty at Stanford University (1998-99) in the USA. His research interests are in the area of IC design, ultra-low power digital design, dedicated complex algorithms, architectures, and ASICs for image and video processing, RF CMOS design and mixed signal IC designn for IoT. He has co-authored more than 400 papers in these fields and in MOS devices and EDA. He is a senior member of IEEE, SBC, and SBMICRO societies. He was Technical Program Chair of IEEE SBCCI Symposium (1997, 2005), SBMICRO (1989, 1995), IEEE LASCAS (2013), VARI 2016 Workshops and Conferences.

For further information, please refer to Paolo Crovetti (, 011 0904220).