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 Our Recent Researches 

Last updated on  Dec 19, 2016

Fingerprint Authentication  Group

  Our group mainly focuses on the following directions: fingerprint sensing; fingerprint authentication algorithm and its evaluation methodology; Security of fingerprint authentication system. Fingerprint sensing is to build up a fingerprint image from the sensing data via various kinds of sensors. Fingerprint authentication algorithm includes: algorithm architecture, intelligence information processing, image processing, feature extraction, matching, and score system. Its evaluation methodology covers both offline and online analysis. Output of the analysis against the algorithm includes precision, processing speed, performance, and reliability. Security of fingerprint authentication systems is about how to secure the biometric system against attacks.

  Our researches put more efforts on implementation on many kinds of platforms for embedded systems. Further more; we explore various kinds of platforms such as system on chip (SOC) and software development tool to achieve high research performance

  We hope our work can contribute to the evolving biometric science and technology and benefit to the world.

 

TCT  Group

   Currently we are in process of developing a new framework for multiprocessor system programming. The aim of our MPSoC programming framework, which we called Tightly Coupled Thread model (TCT model), is to simplify the system level partitioning and concurrent behavioral modeling. The TCT execution model is based on data-driven thread synchronization. Our new MPSoC programming framework enables programmer to specify system level partitioning directly on reference C code which makes the TCT model platform independent.

  The advantages of TCT model over the existing approaches are i) A global data dependency analysis guarantees the computational behavior of the parallel model be the same as its sequential model. This simplifies the functional verification task. ii) Simple approach to define parallel processes enables the programmer to define wide range of parallelism. iii) The TCT compiler handles automatic insertion of inter-processor communications and automatically generates a concurrent execution model. This enables a programmer to go from a sequential program to a multi threaded in a short time.

 

Multimedia SoC Design  Group

   LSI for a high performance multimedia is our interest. With long experienced on this field from MPEG1, MPEG2, H.263 to H.264 standard, various research topics from the hardware-oriented algorithm development, memory access optimization technique, low power design to a practical LSI system design are focused to provide the best solution for next generation technology.

  The H.264/AVC decoder SoC for a handheld video player with our original block-pipelining coprocessor is an example for our work. Our current target is to explore an efficient and compact structure of H.264/AVC Codec for HDTV purpose.





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