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Análise automática de nuvens de pontos 3D de cabeças com Plagiocefalia Posicional

Authors: Sousa, Ricardo Jorge Rodrigues de;

Análise automática de nuvens de pontos 3D de cabeças com Plagiocefalia Posicional

Abstract

A Plagiocefalia Posicional é uma condição com uma prevalência significativa em crianças recém-nascidas. Esta condição define-se como uma distorção assimétrica do formato do crânio do bebé originária de complicações pré-natais ou de um incorreto posicionamento de descanso pós-parto. Ortóteses cranianas são o método de tratamento mais utilizado pela sua eficácia, no entanto, estas ainda apresentam algumas limitações que, com recursos e técnicas mais atuais, poderão ser colmatadas. Esta dissertação tem como propósito contribuir para a, automatização do processo de design das ortóteses que é atualmente feito de forma manual e, por isso, sujeito a falhas humanas. A modelação da ortótese craniana será conseguida através da análise das medidas antropométricas e por comparação destas com múltiplos modelos de cabeças consideradas normais. Nesta dissertação foram desenvolvidas duas aplicações: uma capaz de determinar a partir de um modelo tridimensional (nuvem de pontos) do crânio deformado as medidas antropométricas requeridas para a modelação da ortótese e outra, que permite comparar duas nuvens de pontos, de modo a ser possível encontrar para uma cabeça com Plagiocefalia Posicional a cabeça normal mais próxima.

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Portugal
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Keywords

Point cloud, Iterative Closest Point, Ortótese craniana, Cranial orthosis, Automatic design, Plagiocefalia Posicional, Positional Plagiocephaly, Design automático, Nuvem de pontos

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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