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		<isbn>978-85-7669-271-3</isbn>
		<citationkey>Campos:1993:AnFaPr</citationkey>
		<title>Analysis of facial profiles</title>
		<format>Impresso, On-line.</format>
		<year>1993</year>
		<numberoffiles>1</numberoffiles>
		<size>1052 KiB</size>
		<author>Campos, João Carlos,</author>
		<affiliation>Department of Medical Physics and Bioengineering of University College London</affiliation>
		<editor>Figueiredo, Luiz Henrique de,</editor>
		<editor>Gomes, Jonas de Miranda,</editor>
		<e-mailaddress>cintiagraziele.silva@gmail.com</e-mailaddress>
		<conferencename>Simpósio Brasileiro de Computação Gráfica e Processamento de Imagens, 6 (SIBGRAPI)</conferencename>
		<conferencelocation>Recife</conferencelocation>
		<date>19 - 22 out. 1993</date>
		<volume>2</volume>
		<pages>79-82</pages>
		<booktitle>Anais</booktitle>
		<publisher>Sociedade Brasileira de Computação</publisher>
		<publisheraddress>Porto Alegre</publisheraddress>
		<tertiarytype>Comunicação Técnica</tertiarytype>
		<transferableflag>1</transferableflag>
		<keywords>method of segmentation, method of description, method of classification, facial profiles.</keywords>
		<abstract>This work presents some preliminary results of the project Analysis of Facial Profiles. The aim is to establish a method of segmentation, description and classification of human facial profiles. Special emphasis is given to the analysis of changes in shape and the use of curvature variation along the profile. Mathematical techniques for quantitatively describing the changes produced by surgery have been developed, including methods of automatic profile segmentation and curvature analysis using scale space techniques. A medical graphics workstation is used for data analysis, which generates a three-dimensional model of the facial surface from data of CT, MRI scanners or from a custom built laser scanner, allowing the definition and extraction of a number of arbitrary sections (sets of x-y coordinate points). Mid-line facial profiles representing the pre and post-treatment states of a patient following surgery to the middle third of the face is used to illustrate some of the methods.</abstract>
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		<language>en</language>
		<targetfile>21 Analysis of facial profiles.pdf</targetfile>
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