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Initial assessment of facial nerve paralysis based on motion analysis using optical flow method

Patients with facial nerve paralysis suffer serious functional, cosmetic and psychological problems with impaired ability to communicate both verbally and nonverbally. Rehabilitation for facial paralysis begins with a thorough clinical evaluation in accessing the degree of paralysis. Generally, for...

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Main Author: Wan Syahirah, Wan Samsudin
Format: Thesis
Language:English
Published: 2015
Subjects:
Q Science (General)
T Technology (General)
Online Access:http://umpir.ump.edu.my/id/eprint/13535/16/Initial%20Assessment%20of%20Facial%20Nerve%20Paralysis%20based%20on.pdf
http://umpir.ump.edu.my/id/eprint/13535/
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spelling my.ump.umpir.135352021-11-17T02:29:04Z http://umpir.ump.edu.my/id/eprint/13535/ Initial assessment of facial nerve paralysis based on motion analysis using optical flow method Wan Syahirah, Wan Samsudin Q Science (General) T Technology (General) Patients with facial nerve paralysis suffer serious functional, cosmetic and psychological problems with impaired ability to communicate both verbally and nonverbally. Rehabilitation for facial paralysis begins with a thorough clinical evaluation in accessing the degree of paralysis. Generally, for assessment of facial nerve dysfunction on patient's face in daily clinical application, observation-based subjective grading systems by clinicians is been employed. Subjective assessments of facial nerve function are accomplished by inferring nerve function through the observation of voluntary facial movement. These methods usually yield a single value which hypothetically corresponds to the severity of facial paralysis. To date, there are no subjective assessment methods that can reliably produce quantitative information regarding facial nerve function. Previous works have proposed a wide range of methods to obtain objective data to quantify and determine the severity of facial paralysis. However, there is no standardized quantitative method for objective description of facial nerve function. Acknowledging the importance of this facial assessment, this research was conducted to develop an initial assessment methodthat can classify normal and patient subjects based on facial motion analysis using Optical Flow algorithm as well as categorizing the severity of patient into six levels according to House-Brackmann (I-TB) system. Prior to initial assessment method been developed, two experiments were conducted to find the best parameter and bestmeasurement for assessing facial paralysis. Distance and area were selected as two measurement parameters which were investigated in this research. A number of mathematical and statistical analyses were performed to determine the best measurement of these parameters. The results indicate that the distance is the best parameter and the value of initial exercise frame is the most important measurement in tracking the changes of facial movement. This thesis also presents the initial facial assessment method which contains the individual scores for each exercise involved in this research and also grading the paralysis for each patient corresponds to HB system. This research showed satisfactory results which was validated by a medical professional in Otorhinolaryngology. This initial facial assessment method may play a pivotal role in initiation of final assessment system for facial paralysis and develop better rehabilitation program for patients. 2015 Thesis NonPeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/13535/16/Initial%20Assessment%20of%20Facial%20Nerve%20Paralysis%20based%20on.pdf Wan Syahirah, Wan Samsudin (2015) Initial assessment of facial nerve paralysis based on motion analysis using optical flow method. PhD thesis, Universiti Malaysia Perlis.
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic Q Science (General)
T Technology (General)
spellingShingle Q Science (General)
T Technology (General)
Wan Syahirah, Wan Samsudin
Initial assessment of facial nerve paralysis based on motion analysis using optical flow method
description Patients with facial nerve paralysis suffer serious functional, cosmetic and psychological problems with impaired ability to communicate both verbally and nonverbally. Rehabilitation for facial paralysis begins with a thorough clinical evaluation in accessing the degree of paralysis. Generally, for assessment of facial nerve dysfunction on patient's face in daily clinical application, observation-based subjective grading systems by clinicians is been employed. Subjective assessments of facial nerve function are accomplished by inferring nerve function through the observation of voluntary facial movement. These methods usually yield a single value which hypothetically corresponds to the severity of facial paralysis. To date, there are no subjective assessment methods that can reliably produce quantitative information regarding facial nerve function. Previous works have proposed a wide range of methods to obtain objective data to quantify and determine the severity of facial paralysis. However, there is no standardized quantitative method for objective description of facial nerve function. Acknowledging the importance of this facial assessment, this research was conducted to develop an initial assessment methodthat can classify normal and patient subjects based on facial motion analysis using Optical Flow algorithm as well as categorizing the severity of patient into six levels according to House-Brackmann (I-TB) system. Prior to initial assessment method been developed, two experiments were conducted to find the best parameter and bestmeasurement for assessing facial paralysis. Distance and area were selected as two measurement parameters which were investigated in this research. A number of mathematical and statistical analyses were performed to determine the best measurement of these parameters. The results indicate that the distance is the best parameter and the value of initial exercise frame is the most important measurement in tracking the changes of facial movement. This thesis also presents the initial facial assessment method which contains the individual scores for each exercise involved in this research and also grading the paralysis for each patient corresponds to HB system. This research showed satisfactory results which was validated by a medical professional in Otorhinolaryngology. This initial facial assessment method may play a pivotal role in initiation of final assessment system for facial paralysis and develop better rehabilitation program for patients.
format Thesis
author Wan Syahirah, Wan Samsudin
author_facet Wan Syahirah, Wan Samsudin
author_sort Wan Syahirah, Wan Samsudin
title Initial assessment of facial nerve paralysis based on motion analysis using optical flow method
title_short Initial assessment of facial nerve paralysis based on motion analysis using optical flow method
title_full Initial assessment of facial nerve paralysis based on motion analysis using optical flow method
title_fullStr Initial assessment of facial nerve paralysis based on motion analysis using optical flow method
title_full_unstemmed Initial assessment of facial nerve paralysis based on motion analysis using optical flow method
title_sort initial assessment of facial nerve paralysis based on motion analysis using optical flow method
publishDate 2015
url http://umpir.ump.edu.my/id/eprint/13535/16/Initial%20Assessment%20of%20Facial%20Nerve%20Paralysis%20based%20on.pdf
http://umpir.ump.edu.my/id/eprint/13535/
_version_ 1717093616248160256
score 13.211869

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