Project Duration: March - November 1998.
This page assembles some results (figures) of work that is part of our research topic ``Visualization of Medical Data''. The figures are provided in JPEG format. Further results (figures and animations) are povided in various formats as stated for each of the results.
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Conventional approaches to multimodal visualization. Top, selected MRI slices are merged with functional data by pixel interleaving. Middle, the maximum intensities of the data are projected onto axial, coronal and sagital planes bearing brain outlines and millimetric Talairach coordinates. Bottom, the maximum data intensities are projected along the line of sight onto the cortical surface.
Different problems arise when using direct volume rendering. When surface rendering is employed, the regions of activation are hidden by the cerebral cortex (right hand side). Left, very low opacity allows deeper structures to be visualized. However, it is hard to tell, where the foci reside exactly.
|Figure 4a and
The principle of placing image planes as multiple views of the scene for enhancing volume visualization: without (left) and with (right) textures added.
|Figure 5a and
Left: Using multiple views, the exact localization of activations is also possible with transparent transfer functions; Right: Even occluded regions like the cutaway part become obvious with the help of multiple views.
Magic Mirrors with different transfer functions (left and right mirrors) and projective view (bottom mirror).
Magic Mirrors with contour display (left mirror).
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