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April June
Issue
: April 2009
DOI: FS042009001
Title: A New FPCM Based Vector Quantization
Design for Image Compression in Wavelet Domain
Authors: R. Nagendran, P. Arockia Jansi
Rani
Keywords: -Image Compression, Discrete
Wavelet Transform, Fuzzy Possibilistic C Means, Vector
Quantization
Abstract:
This paper presents a new Vector Quantizer codebook design using Fuzzy Possibilistic C Means (FPCM) clustering technique. The idea is to achieve higher compression ratio based on clustering the wavelet coefficients of each Discrete Wavelet Transformed (DWT) band. The methodology applied here is to apply DWT to the whole image. The sub blocks are decomposed into one level wavelet where the coefficients are clustered using FPCM. The centroids of each cluster is arranged in the form of a codebook and indexed. The index values are coded and then transmitted across. The reconstructed image is constructed using the inverse DWT. The results show that the psycho-visual fidelity criteria (both subjective and objective measures) of the proposed FPCM technique are better than other existing clustering techniques for vector quantization.
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Issue
: April 2009
DOI: FS042009002
Title: DNA Nanorobot: Movement Control
Algorithm for Cancer Cell Detection Using Fuzzy Logic
Rules
Authors: Swaraj Bharti, Abhimanyu K. Singh,
S. Paul, and G. Sahoo
Keywords: ATP, DNA Nanorobot, Fuzzy Logic,
Nanomedicine, Nanorobotics, Nanotechnology
Abstract:
Ongoing development in nanotechnology and bioinformatics will enable the construction of nanorobot which will work at nano-scale. Nanorobot development has many challenges and limitations such as its control and behavior in different environments. In this proposed work we present DNA nanorobot design, Cancer cell detection methodology and DNA nanorobot control techniques for its movement in dynamic environment are described using Fuzzy Logic (FL) rules. Proposed model will find the cancer cell and try to apply drug to that cell to recover it.
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