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This paper presents two novel architectures for two-dimensional (2-D) Haar wavelet transform (HWT) of transform block in face recognition systems. The proposed architectures comprises 2-D HWT with transpose-based computation and dynamic partial reconfiguration (DPR) that have been synthesised using VHDL and implemented on Xilinx Virtex-5 FPGAs. To evaluate the proposed architecture, comparison for...
Service-based architectures have now become commonplace, creating the need to address their systematic maintenance and evolution. We propose to enable transformation-driven evolution for service architectures in a semi-automated fashion. In contrast to the existing solutions like service wrapping, migration or run-time adaptation etc., the proposal supports primitive and customisable architectural...
This paper presents the design and implementation of finite Radon transform (FRAT) on field programmable gate array (FPGA). To improve the implementation time, Xilinx AccelDSP, a software for generating hardware description language (HDL) from a high-level MATLAB description has been used. FPGA-based architectures with three design strategies have been proposed: direct implementation of pseudo-code...
This paper describes the design and implementation of context-based adaptive variable length coding (CAVLC) and comparative analysis of trade-off offered by integer transform (IT) and discrete wavelet transform (DWT) for three dimensional 3-D medical image compression systems. The proposed system architectures were synthesised using VHDL and implemented on Xilinx University Program XUPV5-LX110T prototyping...
In this research, novel architectures based on different design approaches and arithmetic techniques such as direct mapping implementation, dynamic partial reconfiguration (DPR) mechanism, distributed arithmetic (DA) and systolic array (SA) will be developed for three dimensional (3D) medical image compression system. Moreover, solutions for processing large medical volumes will be investigated and...
This paper describes the design and implementation of 3D Haar wavelet transform (HWT) with transpose based computation and dynamic partial reconfiguration (DPR). As a result of the separability property of the multi-dimensional HWT, the proposed architecture has been implemented using a cascade of three N-point 1D HWT and two transpose memory for a 3D volume of N ?? N ?? N, suitable for 3D medical...
Physical layer encryption is taking a significant importance in securing wireless networks. In this paper, an efficient physical layer encryption is proposed. It relies on the implementation of OFB mode just after the error coding process. The significant advantage of this implementation is that it hides the entire Mac frame. In order to reduce the overhead power consumption at the receiver, an identification...
Along with distributed problem solving and parallel artificial intelligence, agents and multi-agent systems collectively form one of the three broad areas which fall under distributed artificial intelligence (DAI). In this paper, we explore and review the general concepts of software agent technology; definitions, types, architectures, agent communication, multiagent systems and agent development...
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