Paper of Final Year Project.pdf

Face recognition Attendance System Using Face
Recognition Technique
Indranath Sarkar *,Subhankar Pal, Sourav Mondal, Sayantan Mitra, Soumyajit khan ,
Pritam Chakraborty, Kousik Maity
Associate Professor of ECE : JIS College of Engineering, Kalyani, Nadia, West Bengal
Student : Dept. of ECE, JIS College of Engineering; Kalyani, West Bengal
ABSTRACT :
The main purpose of this project is to build a human face recognition for an institute or
organization to mark the attendance of their students or employees. It is a subdomain of
Object Detection, where we try to observe the instance of semantic objects. This system is
fully automated and easily deployable.
Index : Automated, Face Detection, Face Recognition, Voila and Jones Algorithm, Correlation,
Attendance.
I. INTRODUCTION :
The applications of this sub-domain of
computer vision are vast and businesses
around the world are already reaping the
benefits. The usage of face recognition
models is only going to increase in the next
few years Face recognition is as old as
computer vision, both because of the practical
importance of the topic and theoretical interest
from cognitive scientists. Despite the fact that
other methods of identification (such as
fingerprints, or iris scans) can be more accurate,
face recognition has always remains a major
focus of research because of its noninvasive
nature and because it is people's primary
method of person identification. Face
recognition technology is gradually evolving to a
universal biometric solution since it requires
virtually zero effort from the user end while
compared with other biometric options.
Biometric face recognition is basically used in
three main domains: time attendance systems
and employee management; visitor
management systems; and last but not the least
of the authorization systems and access control
systems. Traditionally, student’s attendances
are taken manually by using attendance sheet
given by the faculty members in class, which is a
time consuming event. Moreover, it is very
difficult to verify one by one student in a large
classroom environment with distributed
branches whether the authenticated students
are actually responding or not.
II. PROPOSED SYSTEM ARCHITECTURE :
A. Application layer :
Face detection is used in biometrics, often as a
part of (or together with) a facial recognition
system. It is also used in video surveillance,
human computer interface and image database
management. There is the capturing phase in
this the user captures the frames and using a
web app that runs on almost all platforms
upload the file to the server. Authentication is
provided to the users. This web app is used to

upload captured frames as well as to view the
attendance.
B. System layer :
This is the layer where the processing is done
that is the detection and recognition part at the
server side. Viola and Jones algorithm is used to
detect images from the frames. Initially an
integral image is generated from the frame
which simply assigns numbers to the pixels
generated by summing up the values. Further to
detect the objects from the frames the Haar-like
feature is generated and as millions of features
being generated Adaboost (boosting algorithm)
is used to enhance the performance. The
extracted features are passed through a trained
classifier which detects the faces from the
objects. These detected faces are cropped and
passed through the recognition module which
by applying correlation to the cropped images
and the images in the databases recognizes the
faces.
III. AND JONES ALGORITHM :
The Viola-Jones algorithm first detects the face
on the grayscale image and then finds the
location on the colored image. Viola-Jones
outlines a box (as you can see on the right) and
searches for a face within the box. It is
essentially searching for these haar-like
features, which will be explained later.
CONCEPTUAL DIAGRAM
IV. Eigenface :
Eigenface is based on PCA that classify images
to extract features using a set of images. It is
important that the images are in the same
lighting condition and the eyes match in each
image. Also, images used in this method must
contain the same number of pixels and in
grayscale. For this example, consider an
image with n x n pixels as shown in ﬁgure 4.
Each raw is concatenated to create a vector,
resulting a 1 × n
2
matrix. All the images in
the dataset are stored in a single matrix
resulting a matrix with columns
corresponding the number of images. The
matrix is averaged (normalised) to get an
average human face. By subtracting the
average face from each image vector unique
features to each face are computed. In the
resulting matrix, each column is a
representation of the diﬀerence each face has
to the average human face.
V. Cascade Training:
After the initial algorithm, it was understood
that training the cascade as a whole can be
optimized, to achieve a desired true detection
rate with minimal complexity. Examples of such
algorithms are RCBoost, ECBoost or RCECBoost.
This can be used for rapid object detection of
more specific targets, including non-human

objects with Haar-like features. The process
requires two sets of samples: negative and
positive, where the negative samples
correspond to arbitrary non-object images. The
time constraint in training a cascade classifier
can be circumvented using cloud-computing
methods.
VI. Cascade Detection:
After dealing with training We have to take the
face and also detect them. Cascade classifiers
are available in OpenCV, with pre-trained
cascades for frontal faces and upper body.
When we add eye detect
classifier(haarcascade_eye.xml) then it detects
the eye also.
VII. Tool Kits: Matplolib:
Matplotlib is a python 2D plotting library which
produces publication quality figures in a variety
of hard copy formats and interactive
environments across platforms. Matplotlib can
be used in Python scripts. Numpy: Numpy is a
library for the Python Programming language,
adding support for large multi-dimensional
matrices and array, along with a large collection
of high level mathematical function to operate
on these arrays. It’s a numerical python module.
VIII OpenCV :
OpenCV-Python is a library of Python bindings
designed to solve computer vision problems.
Python is a general purpose programming
language started by Guido van Rossum that
became very popular very quickly, mainly
because of its simplicity and code readability.
For open cv now the coding for the facial
recognition is easier than ever in open cv there
are three easy steps for the coding of facial
recognition. That is similar to the how us brain
used to recognize the face. Data Gathering:
gather the facial data by useful algorithms.
Train the recognizer: feed the facial data and
unique id so that the recognizer can detect.
Recognition: take the new faces and test it how
recognizer can recognize the face or not.
IX. OUTPUT :
X. CONCLUSION :
In order to obtain the attendance of individual
and to record their time of entry and exit, the
authors proposed the attendance management
system based on face recognition technology in
the institutions/organizations. The system takes
attendance of each student by continuous
observation at the entry and exit points. The
result of our preliminary experiment shows
improved performance in the estimation of the
attendance compared to the traditional black
and white attendance systems. Current work is
focused on the face detection algorithms from
images or video frames.

REFERENCES :
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FacedetectionWikipediahttps://en.wikipedia.or
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AUTHORS PROFILE :
Dr. Indranath Sarkar is
presently working as an Associate Professor of
JIS College of Engineering, Kalyani, Nadia, West
Bengal. He has worked 19 years in the Academic
Sector. He completed his Master of Engineering
degree in Electronics and Communication
Engineering and BE degree in ECE from National
Institute of Technology Durgapur.
Subhankar Pal is a final year UG
student of Electronics and Communication
Engineering from JIS College of Engineering,
Kalyani, Nadia, West Bengal. India
Sourav Mondal is a final year UG
Sayantan Mitra is a final year UG
Soumyajit khan is a final year UG
Pritam Chakraborty is a final year
UG student of Electronics and Communication
Kousik Maity is a final year UG

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