Quantification of Cranial Asymmetry in Infants Based on Facial Features
碩士 === 國立清華大學 === 電機工程學系 === 102 === In this thesis, we propose a new method for measuring the asymmetry measurement of cranium in infants. After obtaining the three-dimensional image of the head, we use the covariance analysis to filter the part of head with larger variation of curvature and a two-...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Others |
Language: | en_US |
Published: |
2013
|
Online Access: | http://ndltd.ncl.edu.tw/handle/07455848611157387358 |
id |
ndltd-TW-102NTHU5442027 |
---|---|
record_format |
oai_dc |
spelling |
ndltd-TW-102NTHU54420272015-10-13T22:57:41Z http://ndltd.ncl.edu.tw/handle/07455848611157387358 Quantification of Cranial Asymmetry in Infants Based on Facial Features 根據臉部特徵量化嬰兒頭顱之不對稱性 Li, Wei-Cheng 李瑋城 碩士 國立清華大學 電機工程學系 102 In this thesis, we propose a new method for measuring the asymmetry measurement of cranium in infants. After obtaining the three-dimensional image of the head, we use the covariance analysis to filter the part of head with larger variation of curvature and a two-phase K-means classification to differentiate those parts. With the help of the geometric relationship of the cluster centers, we can locate the facial organs. Therefore, based on the locations of facial organs, we first rotate the three-dimensional head images to a common frontal orientation and then use the ICP algorithm for the fine registration. All the three-dimensional head images can be aligned to the same benchmark. Finally, we will find a sagittal plan to generate a mirrored head image. We use the head image before treatment compare with the mirrored image and after treatment, and estimating the asymmetric assessment. The experiment results, deformation parts displaying and volume calculating, demonstrate the feasibility of the proposed method. Huang, Chung-Lin Lin, Chia-Wen 黃仲陵 林嘉文 2013 學位論文 ; thesis 46 en_US |
collection |
NDLTD |
language |
en_US |
format |
Others
|
sources |
NDLTD |
description |
碩士 === 國立清華大學 === 電機工程學系 === 102 === In this thesis, we propose a new method for measuring the asymmetry measurement of cranium in infants. After obtaining the three-dimensional image of the head, we use the covariance analysis to filter the part of head with larger variation of curvature and a two-phase K-means classification to differentiate those parts. With the help of the geometric relationship of the cluster centers, we can locate the facial organs. Therefore, based on the locations of facial organs, we first rotate the three-dimensional head images to a common frontal orientation and then use the ICP algorithm for the fine registration. All the three-dimensional head images can be aligned to the same benchmark. Finally, we will find a sagittal plan to generate a mirrored head image. We use the head image before treatment compare with the mirrored image and after treatment, and estimating the asymmetric assessment. The experiment results, deformation parts displaying and volume calculating, demonstrate the feasibility of the proposed method.
|
author2 |
Huang, Chung-Lin |
author_facet |
Huang, Chung-Lin Li, Wei-Cheng 李瑋城 |
author |
Li, Wei-Cheng 李瑋城 |
spellingShingle |
Li, Wei-Cheng 李瑋城 Quantification of Cranial Asymmetry in Infants Based on Facial Features |
author_sort |
Li, Wei-Cheng |
title |
Quantification of Cranial Asymmetry in Infants Based on Facial Features |
title_short |
Quantification of Cranial Asymmetry in Infants Based on Facial Features |
title_full |
Quantification of Cranial Asymmetry in Infants Based on Facial Features |
title_fullStr |
Quantification of Cranial Asymmetry in Infants Based on Facial Features |
title_full_unstemmed |
Quantification of Cranial Asymmetry in Infants Based on Facial Features |
title_sort |
quantification of cranial asymmetry in infants based on facial features |
publishDate |
2013 |
url |
http://ndltd.ncl.edu.tw/handle/07455848611157387358 |
work_keys_str_mv |
AT liweicheng quantificationofcranialasymmetryininfantsbasedonfacialfeatures AT lǐwěichéng quantificationofcranialasymmetryininfantsbasedonfacialfeatures AT liweicheng gēnjùliǎnbùtèzhēngliànghuàyīngértóulúzhībùduìchēngxìng AT lǐwěichéng gēnjùliǎnbùtèzhēngliànghuàyīngértóulúzhībùduìchēngxìng |
_version_ |
1718084031449399296 |