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敬邀參加Prof. Hao Yu 專題演講_Machine-learning Enhanced Biomedical Data Analytics for Point-of-care Diagnosis System
  Date : 2017-04-11
 

時間:4月25日上午10:00


地點:清大台達館103室 


Abstract:With the recent advance of microfluidic-based lab-on-a-chip integration, lensless microfluidic imaging system with super-resolution (SR) algorithm has become a promising solution to miniaturize the conventional bulky optical-lens-based flow cytometer for portable and high-throughput cell detection. The previous lensless microfluidic imaging system however requires a multi-frame-SR based image processing with limited throughput to be realized on hardware. This talk presents two single-frame super-resolution algorithms using online machine-learning for lensless microfluidic imaging. One is based on extreme-learning machine and the other one is based convolution-neuron-network. Both requires only one frame of image to correct the resolution of the lensless images and can be realized with compact hardware (ASIC chip and FPGA) to perform a real-time image processing. A corresponding contact-imaging based microfluidic cytometer prototype is demonstrated for cell recognition and counting. Compared with the commercial flow cytometer, less than 8% error is observed for absolute number of microbeads; and 0.10 coefficient of variation is observed for cell-ratio of mixed RBC and HepG2 cells in solution.   


Biography:Dr. Yu obtained his B.S. degree from Fudan University (Shanghai China) in 1999, with 4-year first-prize Guanghua scholarship and 1-year Samsung scholarship for the outstanding student in science and engineering. After selected by mini-cuspea program, he spent some time in New York University, and obtained M.S/Ph. D degrees both from electrical engineering department at UCLA in 2007, with major of integrated circuit and embedded computing. He was a senior research staff at Berkeley Design Automation (BDA) since 2006, one of top-100 start-ups selected by Red-herrings at Silicon Valley. Since October 2009, he is an assistant professor at school of electrical and electronic engineering, and as area director of VIRTUS IC Design, VALENS Biomedical Research Center, as well as IoT Cluster Director of Energy Research Institute, Nanyang Technological University (NTU), Singapore. 

 

 
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