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A Hidden Markov Model (HMM) Scheme for Lip based Identification Utilizing Vertical Grooves Angles

by Alireza Shafii Mousavi, Houman Zarrabi
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 179 - Number 29
Year of Publication: 2018
Authors: Alireza Shafii Mousavi, Houman Zarrabi

Alireza Shafii Mousavi, Houman Zarrabi . A Hidden Markov Model (HMM) Scheme for Lip based Identification Utilizing Vertical Grooves Angles. International Journal of Computer Applications. 179, 29 ( Mar 2018), 45-50. DOI=10.5120/ijca2018916678

@article{ 10.5120/ijca2018916678,
author = { Alireza Shafii Mousavi, Houman Zarrabi },
title = { A Hidden Markov Model (HMM) Scheme for Lip based Identification Utilizing Vertical Grooves Angles },
journal = { International Journal of Computer Applications },
issue_date = { Mar 2018 },
volume = { 179 },
number = { 29 },
month = { Mar },
year = { 2018 },
issn = { 0975-8887 },
pages = { 45-50 },
numpages = {9},
url = { },
doi = { 10.5120/ijca2018916678 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
%0 Journal Article
%1 2024-02-07T00:56:56.087135+05:30
%A Alireza Shafii Mousavi
%A Houman Zarrabi
%T A Hidden Markov Model (HMM) Scheme for Lip based Identification Utilizing Vertical Grooves Angles
%J International Journal of Computer Applications
%@ 0975-8887
%V 179
%N 29
%P 45-50
%D 2018
%I Foundation of Computer Science (FCS), NY, USA

As the lips move too quickly, the shape of lips images may differ from one situation to another for an individual such as the cases of smiling or frowning. In this paper, we propose a novel approach to automatic classification of lips images which are captured by digital camera. We focus on the lower part of lips based on morphological features of the grooves. Image processing techniques are employed to replace the traditional lip-prints to detect human identification with intelligent systems. Presented methodology takes lower part of the lips as an input to process their orientation of grooves. Morphological and structural features are considered to describe the lips. A Hidden Markov Model is proposed for classification and training. Results show the proposed algorithm is robust against scale changes, noises and multiple orientations of lip images for each person. With this approach 93.4%, 88.3% and 85.1% accuracy is achieved in classification of 5, 10, 15 class respectively on 75 lip samples. Presented algorithm may contribute significantly for the development of applications related to human identifications or can be used as a supplement to lip identification systems (for example, methods which are using contour of the lips) to reduce the error rate of classification.

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Index Terms

Computer Science
Information Sciences


Pattern recognition Image processing