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146 tulosta hakusanalla Manmatha Nath Dutt

Analysis And Applications Of Non-Subsampled Contourlet Transform

Analysis And Applications Of Non-Subsampled Contourlet Transform

H Devanna; G A E Satish Kumar; G Mamatha

LAP Lambert Academic Publishing
2020
pokkari
This book gives how to design an efficient MIF system which mainly concentrates on the edges, textures and boundaries of medical images.Further it also tries to achieve a fused image which could be shift-invariant, rotation-invariant, multi-scale and multidirectional in nature.The complete accomplishment of this approach is done in the Non-subsampled Contourlet Transform(NSCT) domain.Initially the source images are transformed through NSCT into Low frequency and high frequency sub band images.Since the NSCT is shift-invariant, multi-scale and multi-directional in nature, the source images are transformed through NSCT only such that the fused images should be robust to such issues. To make the fused image rotation-invariant, the dominant features in every orientation needs to be captured and this is accomplished through Gabor filter. Two new fusion rules are also derived based on the Angular Consistency(AC) and Spatio-Frequency energy of low frequency sub bands and high frequency sub bands respectively.The new rule based on AC helps in the observation of phase variations in the low frequency sub bands and the Spatio-Frequency energies noise invar
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Classification of Squids using novel Soft Computing Approaches

Classification of Squids using novel Soft Computing Approaches

K Himabindu; S Jyothi; D M Mamatha

Scholars' Press
2019
pokkari
India has a long tradition of Mariculture from time immemorial and is a leader in the world after China. With a growing human population and a changing climate, there is an increasing threat to many ecosystems. Therefore give importance to identify the new or rare species and to measure their geographical extent. One of the new species is Squids. Squids comprise one of the most significant components of marine life. Squids are fast growing, and active predators with highly evolved and specialized qualities of great inherent interest.Squids represent a major fishery resource widely distributed throughout the oceans of the world. Of the several hundred species harvested around the world, only the Indian Squids have been of major commercial importance to exporting. Squids are one of the most valuable and highly priced crustaceans in India, as well as an important export commodity. The traditional approach to identifying the species and their relationships trained taxonomist presence is very significant. However such skilled experts sometimes are unavailable as well as a limited on financial resources. This leads to increasing interest to identifying the species automatically.
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A Comprehensive Evaluation of the Antenna Multi-Array structures

A Comprehensive Evaluation of the Antenna Multi-Array structures

Thippeswamy G R; Preethi M P; Mamatha C M

Lap Lambert Academic Publishing
2023
pokkari
The research work presented here is primarily intended to analyze geometrical features of fractals that influence the performance of antennas using them. Several antenna configurations based on fractal geometries have been reported in recent years. Modern telecommunication systems require antennas with wider bandwidths and smaller dimensions than conventionally possible. This has initiated antenna research in various directions, one of which is by using fractal shaped antenna elements. In recent years several fractal geometries have been introduced for antenna applications with varying degrees of success in improving antenna characteristics. Some of these geometries have been particularly useful in reducing the size of the antenna, while other designs aim at incorporating multi-band characteristics. Furthermore, design equations for these antennas are obtained in terms of its geometrical parameters such as fractal dimension. Antenna properties have also been linked to fractal dimension of the geometry.
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