Author | Conference | Journal | Organization | Year | DOI
Look for results that meet for the following criteria:
Academic
Publications
Interactive volumetric lighting simulating scattering and shadowing

Interactive volumetric lighting simulating scattering and shadowing,10.1109/PACIFICVIS.2010.5429594,Timo Ropinski,Christian Döring,Christof Rezk-Salam

Edit
Interactive volumetric lighting simulating scattering and shadowing   (Citations: 4)
BibTex | RIS | RefWorks Download
In this paper we present a volumetric lighting model, which simulates scattering as well as shadowing in order to generate high quality volume renderings. By approximating light transport in inhomogeneous participating media, we are able to come up with an efficient GPU implementation, in order to achieve the desired effects at interactive frame rates. Moreover, in many cases the frame rates are even higher as those achieved with conventional gradient-based shading. To evaluate the impact of the proposed illumination model on the spatial comprehension of volumetric objects, we have conducted a user study, in which the participants had to perform depth perception tasks. The results of this study show, that depth perception is significantly improved when comparing our illumination model to conventional gradient-based volume shading. Additionally, since our volumetric illumination model is not based on gradient calculation, it is also less sensitive to noise and therefore also applicable to imaging modalities incorporating a higher degree of noise, as for instance magnet resonance tomography or 3D ultrasound.
Conference: Visualization Symposium, Pacific Asia-Pacific - formerly Asia-Pacific APVIS , pp. 169-176, 2010
Cumulative Annual
View Publication
The following links allow you to view full publications. These links are maintained by other sources not affiliated with Microsoft Academic Search.
    • ...Among the techniques not exclusively based on slicing, we have decided to evaluate the recently proposed shadow volume propagation technique [26], spherical harmonic lighting [25] and dynamic ambient occlusion [27]...
    • ...Ropinski et al. [26] conducted a user study in which they evaluated their shadow volume propagation technique...
    • ...Shadow volume propagation is a technique that approximates the light propagation direction in order to allow efficient rendering [26]...

    Florian Lindemann, et al. About the Influence of Illumination Models on Image Comprehension in D...

    • ...This method was further explored by Ropinski et al. [25], resulting in fewer sampling operations for the illumination computation and allowing integration with GPU volume ray-casters...
    • ...Similarly, color bleeding can be integrated in light scattering techniques as well [14, 25]...
    • ...It is also different from the method by Ropinski et al. [25] because we do not propagate illumination from the outside but compute the extinction of the light intensity for the voxels...

    Philipp Schlegel, et al. Extinction-Based Shading and Illumination in GPU Volume Ray-Casting

    • ...Recent work on volumetric lighting and scattering has demonstrated the superiority of low-frequency lighting over gradient-based local illumination models [18,23] when rendering the 3D ultrasound data...

    Ola Kristoffer Øye, et al. Illustrative Couinaud Segmentation for Ultrasound Liver Examinations

Sort by:

Citations (4)

Share this on