Abstract:In this paper, we compare and investigate facial expression recognition system (FERS) based on well-known
features using Hidden Markov Model (HMM) and Support Vector Machine (SVM) and also with combination of
HMM and SVM. In recent years, there has been increasing usage of deep learning techniques in FERS however
which also suffers from the problem of generalization. In this aspect this paper systematically investigates the
performance of FERS using conventional AI techniques. We exploit well-known features landmark and texture
based LBP. We also propose logical partitioning of face and obtained encouraging results. We have tested on
dataset CK+ and spontaneous own created dataset named 'OAK'. Experiments are conducted with different
combinations of parameters to verify the efficiency of FER. This paper aims to compare the FERS performance
using SVM and HMM. Results clearly reflect the efficiency of SVM with landmark feature.
Key Word: Facial Expression Recognition, HMM, LBP, Landmarks, SVM.
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