Opacity Peeling for Direct Volume Rendering

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dc.contributor.authorRezk-Salama, Christofen_US
dc.contributor.authorKolb, Andreasen_US
dc.date.accessioned2015-02-21T14:31:59Z
dc.date.available2015-02-21T14:31:59Z
dc.date.issued2006en_US
dc.description.abstractThe most important technique to visualize 3D scalar data, as they arise e.g. in medicine from tomographic measurement, is direct volume rendering. A transfer function maps the scalar values to optical properties which are used to solve the integral of light transport in participating media. Many medical data sets, especially MRI data, however, are difficult to visualize due to different tissue types being represented by the same scalar value. The main problem is that interesting structures will be occluded by less important structures because they share the same range of data values. Occlusion, however, is a view-dependent problem and cannot be solved easily by transfer function design. This paper proposes a new method to display different entities inside the volume data in a single rendering pass. The proposed opacity peeling technique reveals structures in the data set that cannot be visualized directly by one-or multi-dimensional transfer functions without explicit segmentation. We also demonstrate real-time implementations using texture mapping and multiple render targets.Categories and Subject Descriptors (according to ACM CCS): I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realismen_US
dc.description.number3en_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume25en_US
dc.identifier.doi10.1111/j.1467-8659.2006.00979.xen_US
dc.identifier.issn1467-8659en_US
dc.identifier.pages597-606en_US
dc.identifier.urihttps://doi.org/10.1111/j.1467-8659.2006.00979.xen_US
dc.publisherThe Eurographics Association and Blackwell Publishing, Incen_US
dc.titleOpacity Peeling for Direct Volume Renderingen_US
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