GPU-Based Hyperstreamlines for Diffusion Tensor Imaging [article]

G. Reina, K. Bidmon, F. Enders, P. Hastreiter, T. Ertl
2006 EUROVIS 2005: Eurographics / IEEE VGTC Symposium on Visualization  
We propose a new approach for the visualization of hyperstreamlines, which offers potential for better scalability than the conventional polygon-based approach. Our method circumvents the bandwidth bottleneck between the CPU and GPU by transmitting a small set of parameters for each tube segment and generates the surface directly on the GPU using the classical sphere tracing approach. This reduces the load on the CPU that would otherwise need to provide a suitable level-of-detail representation
more » ... of the scene, while offering even higher quality in the resulting surfaces since every fragment is traced individually. We demonstrate the effectiveness of this approach by comparing it to the performance and output of conventional visualization tools in the application area of diffusion tensor imaging of human brain MR scans. The method presented here can also be utilized to generate other types of surfaces on the GPU that are too complex to handle with direct ray casting and can therefore be adapted for other applications.
doi:10.2312/vissym/eurovis06/035-042 fatcat:7golotscyjhf3bffuhi7abucnu