The paper deals with 5 different techniques for
feature extraction of face. First-step in face recognition
systems is face detection, with purpose of localizing and
extracting the face region from the background. Self-
Organizing Map (SOM) Neural Network has been used for
training of database and simulation of FR system. The
algorithm developed for the face recognition system and an
image-based approach is formulated, using Directional
Discrete Cosine Transform (DDCT), Discrete Wavelet
Transform (DWT), Discrete Cosine Transform (DCT) ,
Sobel Edge Detection and DCT-Pyramid Transform (DCTPT)
, simulated in MATLAB. Simulation results are very
promising.
Published In:IJCSN Journal Volume 5, Issue 5
Date of Publication : October 2016
Pages : 763-769
Figures :06
Tables : 02
Mahendra Kumar : is Faculty with Department of Electronics & Communication Engineering, University College of Engineering, RTU, Kota, India.
Rohit Giri : is M.Tech Scholar with the Department of Electronics & Communication Engineering, Mewar University, Chittorgrah , Rajasthan ,India
Shipla Jangid : is Faculty with the Department of Electronics & Communication Engineering, Mewar University, Chittorgrah , Rajasthan ,India
This paper present’s a novel face recognition technique
that uses features derived from DCT-PT, DDCT, DCT,
DWT, Sobel coefficients, along with a SOM-based
classifier. The system was evaluated in MATLAB using
an image database of 30 face images, containing six
subjects and each subject having 5 images with different
facial expressions. After training for approximately 1000
epochs the system achieved a recognition rate of as shown
in table 1 for 5 consecutive trials. A reduced feature
space, described for experiment, dramatically reduces the
computational requirements of the methods. DCT-PT
feature extraction method gives better results compared to
DDCT, DWT, DCT and SED methods as shown in table
2. This makes our system well suited for high speed, lowcost,
real-time hardware implementation.
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