Abstract
In this paper, we present a novel web-based collaborative data visualization approach combining the output of multiple rendering methods into a final seamless merged visualization. We have extended an existing web-based visualization framework Med3D with support for additional visualization plugins and an option for merging the outputs into a seamless final visualization. Such an approach allows users to place the anchors of 3D pinned annotations into volumetric data by ray casting mouse position to selected mesh geometry. The presented web-based collaborative volumetric data visualization framework is to the best of our knowledge the first of it's kind using state-of-the-art volumetric rendering system.