Thambipillai Srikanthan

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Color quantization (CQ) is an image processing task popularly used to convert true color images to palletized images for limited color display devices. To minimize the contouring artifacts introduced by the reduction of colors, a new competitive learning (CL) based scheme called the frequency sensitive self-organizing maps (FS-SOMs) is proposed to optimize(More)
The efficiency of the residue number system (RNS) depends not only on the residue-to-binary converters but also the operand sizes and the modulus in each residue channel. Due to their special number theoretic properties, RNS with a moduli set consisting of moduli in the form of 2 1 is more attractive than those with other forms of moduli. In this paper, a(More)
1383-7621/$ see front matter 2010 Elsevier B.V. A doi:10.1016/j.sysarc.2010.04.007 q Some part of this research was presented at 12 Digital System Design, August 2009, pp. 133–140. * Corresponding author. Tel.: +65 6790 6639; fax: + E-mail addresses: amit0011@ntu.edu.sg (A.K. S (T. Srikanthan), akash@nus.edu.sg (A. Kumar), asjgwu Efficient run-time mapping(More)
Perceptual quality assessment is a challenging issue in 3D signal processing research. It is important to study 3D signal directly instead of studying simple extension of the 2D metrics directly to the 3D case as in some previous studies. In this paper, we propose a new perceptual full-reference quality assessment metric of stereoscopic images by(More)
Modern embedded systems need to support multiple time-constrained multimedia applications that often employ multiprocessor-systems-on-chip (MPSoCs). Such systems need to be optimized for resource usage and energy consumption. It is well understood that a design-time approach cannot provide timing guarantees for all the applications due to its inability to(More)
Area efficiency is one of the major considerations in constraint aware hardware/software partitioning process. This paper focuses on the algorithmic aspects for hardware/software partitioning with the objective of minimizing area utilization under the constraints of execution time and power consumption. An efficient heuristic algorithm running in O(n log n)(More)