Abstract
This paper presents a Parallel Volume Rendering algorithm which was applied in 3D Ecocardiographic and TAC images. This algorithm used a Heuristic partitioning method which distributes both the data and computations to processing units to achieved fast, high quality rendering. The processing nodes perform local Ray Casting of their subvolume simultaneously. No communication between processing units is needed during this local Ray Casting process. A subimages is generated by each processing unit and the final image is obtained by volumetric composition in the proper order, which can be previously determined. This composition is centrally control. Test results over a PowerXplorer Parallel machine reveals a satisfying acceleration of the process.