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Showing posts from March, 2018

A ULTRA-LOW POWER ROUTER DESIGN FOR NETWORK ON CHIP

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Alaaudeen K.M, Vengatesh Kumar S Department of Electronics & Communication Engineering, Mohammed Sathak Engineering College, Ramnad, TN, India ABSTRACT The design of more complex systems becomes an increasingly difficult task because of different issues related to latency, design reuse, throughput and cost that has to be considered while designing. In Real-time applications there are different communication needs among the cores. When NoCs (Networks on chip) are the means to interconnect the cores, use of some techniques to optimize the communication are indispensable. From the performance point of view, large buffer sizes ensure performance during different applications execution. But unfortunately, these same buffers are the main responsible for the router total power dissipation. Another aspect is that by sizing buffers for the worst case latency incurs in extra dissipation for the mean case, which is much more frequent. Reconfigurable router architecture for NOC i...

ALPHA-ROOTING COLOR IMAGE ENHANCEMENT METHOD BY TWO-SIDE 2-D QUATERNION DISCRETE FOURIER TRANSFORM FOLLOWED BY SPATIAL TRANSFORMATION

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Artyom M. Grigoryan, Aparna John , Sos S. Agaian University of Texas at San Antonio, San Antonio, TX, USA 78249 2City University of New York / CSI ABSTRACT  In this paper a quaternion approach of enhancement method is proposed in which color in the image is considered as a single entity. This new method is referred as the alpha-rooting method of color image enhancement by the two-dimensional quaternion discrete Fourier transform (2-D QDFT) followed by a spatial transformation. The results of the proposed color image enhancement method are compared with its counterpart channel-by-channel enhancement algorithm by the 2-D DFT. The image enhancements are quantified to the enhancement measure that is based on visual perception referred as the color enhancement measure estimation (CEME). The preliminary experiment results show that the quaternion approach of image enhancement is an effective color image enhancement technique.  KEYWORDS  Alpha-rooting, quat...