Application of a Novel Automatic Method for Determining the Bilateral Symmetry Midline of the Facial Skeleton Based on Invariant Moments

Assuming a symmetric pattern plays a fundamental role in the diagnosis and surgical treatment of facial asymmetry, for reconstructive craniofacial surgery, knowing the precise location of the facial midline is important since for most reconstructive procedures the intact side of the face serves as a...

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Main Authors: Rodrigo Dalvit Carvalho da Silva, Thomas Richard Jenkyn, Victor Alexander Carranza
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Symmetry
Subjects:
Online Access:https://www.mdpi.com/2073-8994/12/9/1448
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author Rodrigo Dalvit Carvalho da Silva
Thomas Richard Jenkyn
Victor Alexander Carranza
author_facet Rodrigo Dalvit Carvalho da Silva
Thomas Richard Jenkyn
Victor Alexander Carranza
author_sort Rodrigo Dalvit Carvalho da Silva
collection DOAJ
description Assuming a symmetric pattern plays a fundamental role in the diagnosis and surgical treatment of facial asymmetry, for reconstructive craniofacial surgery, knowing the precise location of the facial midline is important since for most reconstructive procedures the intact side of the face serves as a template for the malformed side. However, the location of the midline is still a subjective procedure, despite its importance. This study aimed to automatically locate the bilateral symmetry midline of the facial skeleton based on an invariant moment technique using pseudo-Zernike moments. A total of 367 skull images were evaluated using the proposed technique. The technique was found to be reliable and provided good accuracy in the symmetry planes. This new technique will be utilized for subsequent studies to evaluate diverse craniofacial reconstruction techniques.
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spelling doaj.art-2de7b8e714e949e0a9022126646c8b3e2023-11-20T12:26:34ZengMDPI AGSymmetry2073-89942020-09-01129144810.3390/sym12091448Application of a Novel Automatic Method for Determining the Bilateral Symmetry Midline of the Facial Skeleton Based on Invariant MomentsRodrigo Dalvit Carvalho da Silva0Thomas Richard Jenkyn1Victor Alexander Carranza2Craniofacial Injury and Concussion Research Laboratory, Western University, London, ON N6A 3K7, CanadaCraniofacial Injury and Concussion Research Laboratory, Western University, London, ON N6A 3K7, CanadaCraniofacial Injury and Concussion Research Laboratory, Western University, London, ON N6A 3K7, CanadaAssuming a symmetric pattern plays a fundamental role in the diagnosis and surgical treatment of facial asymmetry, for reconstructive craniofacial surgery, knowing the precise location of the facial midline is important since for most reconstructive procedures the intact side of the face serves as a template for the malformed side. However, the location of the midline is still a subjective procedure, despite its importance. This study aimed to automatically locate the bilateral symmetry midline of the facial skeleton based on an invariant moment technique using pseudo-Zernike moments. A total of 367 skull images were evaluated using the proposed technique. The technique was found to be reliable and provided good accuracy in the symmetry planes. This new technique will be utilized for subsequent studies to evaluate diverse craniofacial reconstruction techniques.https://www.mdpi.com/2073-8994/12/9/1448craniofacial skeletoncephalometric analysispseudo-Zernike momentsindependent component analysisprincipal component analysis<i>k</i>-nearest neighbours
spellingShingle Rodrigo Dalvit Carvalho da Silva
Thomas Richard Jenkyn
Victor Alexander Carranza
Application of a Novel Automatic Method for Determining the Bilateral Symmetry Midline of the Facial Skeleton Based on Invariant Moments
Symmetry
craniofacial skeleton
cephalometric analysis
pseudo-Zernike moments
independent component analysis
principal component analysis
<i>k</i>-nearest neighbours
title Application of a Novel Automatic Method for Determining the Bilateral Symmetry Midline of the Facial Skeleton Based on Invariant Moments
title_full Application of a Novel Automatic Method for Determining the Bilateral Symmetry Midline of the Facial Skeleton Based on Invariant Moments
title_fullStr Application of a Novel Automatic Method for Determining the Bilateral Symmetry Midline of the Facial Skeleton Based on Invariant Moments
title_full_unstemmed Application of a Novel Automatic Method for Determining the Bilateral Symmetry Midline of the Facial Skeleton Based on Invariant Moments
title_short Application of a Novel Automatic Method for Determining the Bilateral Symmetry Midline of the Facial Skeleton Based on Invariant Moments
title_sort application of a novel automatic method for determining the bilateral symmetry midline of the facial skeleton based on invariant moments
topic craniofacial skeleton
cephalometric analysis
pseudo-Zernike moments
independent component analysis
principal component analysis
<i>k</i>-nearest neighbours
url https://www.mdpi.com/2073-8994/12/9/1448
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