Design de Funções Transferência para Imagens Médicas 3D recorrendo a uma Interface baseada em Esboços

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dc.contributor.authorParreira, Pedro F.en_US
dc.contributor.authorMendes, Ana R.en_US
dc.contributor.authorLopes, Daniel Simõesen_US
dc.contributor.authorJorge, Joaquimen_US
dc.contributor.editorDias, Paulo and Menezes, Pauloen_US
dc.date.accessioned2020-09-24T14:46:28Z
dc.date.available2020-09-24T14:46:28Z
dc.date.issued2020
dc.description.abstractThe visual quality of volume rendering images and the contrast between different anatomical structures strongly depends on the type of transfer function that is applied by the volume renderer. While conventional windowicon-menu-pointer approaches refer the user to apply pre-defined transfer functions for isolating specific tissues, these are not always desirable for many clinical and surgical scenarios. This leaves the user with the tedious and time consuming task of manual transfer function design. In order to make this task more natural, we propose a sketch-based interface where touch gestures are used to directly control voxel opacity and colour. We also present new transfer function design approaches that aim to reduce the number of trial and error iterations, which usually are necessary for finding appropriate transfer functions. By following our approach, users were able to more rapidly explore and understand volume data, as the number iterations necessary to obtain a desirable transfer function where reduced. For both transfer function design and volume manipulation tasks users responded more favourably to our sketch-based interface when compared to standard mouse and keyboard controls, as the former approach promotes reduced design iterations and improve the user's overall understanding of the data.en_US
dc.description.sectionheadersInteraction Design
dc.description.seriesinformation22o Encontro Português de Computação Gráfica e Interação 2015
dc.identifier.doi10.2312/pt.20151198
dc.identifier.isbn978-3-03868-128-1
dc.identifier.pages13-19
dc.identifier.urihttps://doi.org/10.2312/pt.20151198
dc.identifier.urihttps://diglib.eg.org:443/handle/10.2312/pt20151198
dc.publisherThe Eurographics Associationen_US
dc.subjectTransfer Function
dc.subjectVolume Rendering
dc.subject3D Medical Images
dc.titleDesign de Funções Transferência para Imagens Médicas 3D recorrendo a uma Interface baseada em Esboçosen_US
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Portuguese Meeting on Computer Graphics and Interaction 2015