4th WCSET-2015 at Japan
Applied Sciences and Engineering:
Title:
Synthesis, Characterisation and Textural Analysis to
reduce the Multiplicative Noise in Nano dispersed Liquid
Crystalline Compounds using HF Technique
Authors:
RKNR Manepalli, P. Pardhasaradhi, B.T.P. Madhav, P.
Jayapradha, VGKM Pisipati
Abstract:
Synthesis and characterisation are carried out on four
N-(p-n-decyloxy benzylidene-)p-n-alkoxy anilines 10O.Om
Liquid Crystalline compounds( LC ) with n=10 and m=3, 5
and with 1% ZnO nano particle
dispersion. Further to reduce the multiplicative noise a
component of the image is separated linearly in the
frequency domain, Homomorphic Filtering technique is
used. This technique provides frequency domain procedure
to improve the appearance of an image by gray level
range compression and contrast enhancement. Textures of
the compounds are recorded with polarising microscope
connected with hot stage and camera, the illumination
and reflectance combined multiplicatively and the image
quality is reduced to identify the exact phase in the
compound. The compounds with m=3 exhibits NACB phases
and m=5 exhibits NACIG, while with a nano dispersion of
ZnO exhibits the same phases with reduced clearing
temperature as expected when the doping is done with 1%
.
Keywords: Homomorphic
Filtering (HF), Nanodispersion, Illumination,
Multiplicative Noise, Reflectance
Pages:
058-061