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BHOS Tezisler 2022 17x24sm

THE 3
rd
 INTERNATIONAL SCIENTIFIC CONFERENCES OF STUDENTS AND YOUNG RESEARCHERS 
dedicated to the 99
th
anniversary of the National Leader of Azerbaijan Heydar Aliyev
182
FACE EMOTION RECOGNITION 
Aytan Sadirova, Gulustan Abdullayeva 
Baku Higher Oil School 
Baku, Azerbaijan 
ayten.sadirova.std@bhos.edu.az, gulustan.abdullayeva.std@bhos.edu.az 
Supervisor: PhD, Associate Professor Leyla Muradkhanli 
Keywords: 
Emotion recognition, Human reaction, Feature extraction, Classification
Introduction
 
Recently, face has gained significant importance in identifying the state 
and expression of a human. The Human facial features which can be analyzed 
as a complex dynamic structure with the properties that can significantly 
changes with the time. This can be considered as to be the major focus of 
prominence in social life and takes up an important role in the identifying 
individuals. Hence, Facial expression reorganization is an integral part of 
biometrics and can be used in major areas such as Criminal Identification, in 
the Security of Systems and Verification of credit cards and Utilization of face 
acknowledgment for validation additionally decreases the need of recalling 
passwords and can give a substantially more noteworthy security if confront 
acknowledgment is utilized as a part other safety efforts to for access control. 
Face expression recognition system 
FER system includes the major stages such as face image 
preprocessing, feature extraction and classification.

Preprocessing is a process which can be used to improve the 
performance of the FER system. Image preprocessing includes different 
types of processes such as image clarity and scaling, contrast adjustment, 
and additional enhancement processes to improve the expression frames. 
The cropping and scaling processes were performed on the face image in 
which the nose of the face is taken as midpoint and the other important facial 
components are included physically. 

Feature extraction is finding and depicting of positive features of concern 
within an image for further processing. In image processing computer vision 
feature extraction is a significant stage, whereas it spots the move from 
graphic to implicit data depiction. Then this data depiction can be used as an 
input to the classification.

Classification is the final stage of FER system in which the classifier 
categorizes the expression such as smile, sad, surprise, anger, fear, disgust 
and neutral.

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