Papers by Vishal Chaudhary
Fifth International Conference on Advances in Recent Technologies in Communication and Computing (ARTCom 2013), 2013
In this paper, the Prony's signal modeling approach is used to design fractional delay (FD) i... more In this paper, the Prony's signal modeling approach is used to design fractional delay (FD) infinite impulse response (IIR) filters. This approach utilizes the least mean square error technique in indirect way to model the FD finite impulse response (FIR) filters into the lower order FD IIR filters. This modeling approach is the combination of direct least square method and the Pade's signal modeling method. Further, the design examples are also considered to observe the effectiveness of proposed FD IIR filters. In last, the stability of designed FD IIR filters is confirmed by showing the locations of poles in pole-zero plots.
In this paper, we propose a new approach for performing edgepreserving image filtering. This pape... more In this paper, we propose a new approach for performing edgepreserving image filtering. This paper deals with wavelet decomposition, local linear Stein’s unbiased risk estimate as an estimator for the mean squared error from the noisy image only, we derive a simple explicit image filter which can filter out noise while preserving edges and fine-scale details. Moreover, this filter has a 6 db better PSNR and minimum Standard Deviation algorithm whose computational complexity is independent of the filtering kernel size; thus, it can be applied to real time image processing tasks. The experimental results demonstrate the effectiveness of the new filter for various applications, including noise reduction.
Multimedia Tools and Applications, 2021
D. Upadhyay Division of Electronics & Communication Engineering Netaji Subhas Institu... more D. Upadhyay Division of Electronics & Communication Engineering Netaji Subhas Institute of Technology Delhi, India [email protected] ... Abstract ─ In this paper, design of variable fractional delay filter is investigated. DFT Interpolation method is utilized, with suitable ...
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Papers by Vishal Chaudhary