Date: Thursday 12 March 2015
Time: 16:00 - 17:30
Location / Room: Meije
Chair:
Martin Rajman, École Polytechnique Fédérale de Lausanne (EPFL), CH
Co-Chair:
Giovanni De Micheli, École Polytechnique Fédérale de Lausanne (EPFL), CH
Missing Description
| Time | Label | Presentation Title Authors |
|---|---|---|
| 16:00 | 12.5.1 | TACKLING THE BOTTLENECK OF DELAY TABLES IN 3D ULTRASOUND IMAGING Speakers: Aya Ibrahim1, Pascal Hager2, Andrea Bartolini3, Federico Angiolini1, Marcel Arditi4, Luca Benini5 and Giovanni De Micheli1 1École Polytechnique Fédérale de Lausanne (EPFL), CH; 2Swiss Federal Institute of Technology in Zurich (ETHZ), CH; 3Università di Bologna, IT / ETH Zürich, CH; 4EPFL, CH; 5Università di Bologna / ETH Zürich, IT Abstract 3D ultrasound imaging is quickly becoming a reference technique for high-quality, accurate, expressive diagnostic medical imaging. Unfortunately, its computation requirements are huge and, today, demand expensive, power-hungry, bulky processing resources. A key bottleneck is the receive beamforming operation, which requires the application of many permutations of fine-grained delays among the digitized received echoes. To apply these delays in the digital domain, in principle large tables (billions of coefficients) are needed, and the access bandwidth to these tables can reach multiple TB/s, meaning that their storage both on-chip and off-chip is impractical. However, smarter implementations of the delay generation function, including forgoing the tables altogether, are possible. In this paper we explore efficient strategies to compute the delay function that controls the reconstruction of the image, and present a feasibility analysis for an FPGA platform. Download Paper (PDF; Only available from the DATE venue WiFi) |
| 16:30 | 12.5.2 | INTEGRATED CMOS RECEIVER FOR WEARABLE COIL ARRAYS IN MRI APPLICATIONS Speakers: Benjamin Sporrer1, Luca Bettini2, Christian Vogt2, Andreas Mehmann2, Jonas Reber3, Josip Marjanovic3, Thomas Burger2, David Brunner3, Gerhard Tröster2, Klaas P. Prüssmann3 and Qiuting Huang2 1Integrated Systems Laboratory, Swiss Federal Institute of Technology (ETH), CH; 2Swiss Federal Institute of Technology in Zurich (ETHZ), CH; 3Swiss Federal Institute of Technology in Zurich (ETHZ) / University of Zurich (UZH), CH Abstract Surface coil arrays brought in proximity of the human body enhance the performance of an MRI measurement both in speed and signal-to-noise ratio. However, size and cabling of such arrays can deteriorate the performance of the imaging, or put at risk the safety of the patient. An integrated CMOS direct conversion receiver is proposed, to be placed directly onto the receive coil and enhance the usability. The integrated design needs to preserve the high performance (both in silent noise figure and dynamic range) of discrete solutions, which benefit from dedicated technologies for every receiver sub-block. To exploit the full potential of a coil array, the receiver on each module must also minimize the coupling to nearby modules. The PCB carrying the ASIC will be fabricated with flexible substrate materials to further enhance the wearability and comfort for the patient. Such a modular approach together with the transmission of data over optical fibers results in a lightweight system that allows us to achieve fast development times. Download Paper (PDF; Only available from the DATE venue WiFi) |
| 17:00 | 12.5.3 | TACTILE PROSTHETICS IN WISESKIN Speakers: John Farserotu1, Jean-Dominique Decotignie1, Vladimir Kopta1, Daniel Camilo Rojas Quirós1, Pierre-Nicolas Volpe1, Jacek Baborowski1, Christian Enz2, Stéphanie Lacour2, Hadrien Michaud2, Roberto Martuzzi2, Volker Koch3, Huaiqi Huang3, Tao Li3 and Christian Antfolk4 1CSEM, CH; 2École Polytechnique Fédérale de Lausanne (EPFL), CH; 3BFH, CH; 4Lundt University, SE Download Paper (PDF; Only available from the DATE venue WiFi) |
| 17:30 | End of session | |