Non-photorealistic rendering in stereoscopic 3D visualization
Daniel M. Tokunaga, Cléber Gimenez Corrêa, Ricardo Nakamura, Fátima L. S. Nunes, Romero Tori · 2010
Spatial visualization of virtual contents appears to be, with the appearance of stereoscopic displays, the next step for increasing immersion in visual output. This kind of visualization can be used to facilitate the understanding of complex informations, like anatomic structures. One approach currently adopted for this purpose is the use of non-photorealisitic rendering (NPR), like proposed by Tietjen, Isenberg and Preim [2005]. However, this NPR style, which conventionally tries to simulate a 2D illustration, fused with the the stereoscopic 3D visualization can break the 3D perception of the virtual contents. This work aims to study the 3D perception of virtual contents represented using NPR techniques, in order to evaluate the influence of NPR in the 3D perception when used with stereoscopic information visualization. The stereoscopic NPR visualization was applied in VIDA, a system for the study of anatomic structures that enables the stereoscopic visualization and interaction with virtual objects [Tori et al. 2009], in order to proceed the user tests, the figure 1c show the system used in the test.