-
Notifications
You must be signed in to change notification settings - Fork 2
Home
Slavomir Hudak
2006
Master's Thesis
Faculty of Mathematics, Physics and Informatics Comenius University, Bratislava, Slovakia
This thesis provides a presentation of a parallel volume data visualization system for data supplied from confocal laser scanning microscopy. It describes and compares various methods for volume visualization and optimalization and their implementations on parallel architectures. The parallel volume renderer we have developed is implemented on a 16 nodes PC cluster connected by a high-speed Myrinet network using MPI, ray-casting and binary-swap algorithm. To improve efficiency, several optimalizations for increasing the speed of the ray casting process are used, including empty regions skipping and an efficient bricking addressing scheme. We also suggest several methods of improving the performance when using MPI and compilers. The system is capable of running interactively (several frames per second) on a PC cluster.
Keywords: Volume ray-casting, ray-tracing, parallel rendering, PC clusters, binary swap algorithm, volume data.
| Name | Description |
|---|---|
| BTF | Back-To-Front |
| CLSM | Confocal Laser Scanning Microscopy |
| CPU | Central Processing Unit |
| CT | Computed Tomography |
| FTB | Front-To-Back |
| GNU | GNU’s Not Unix (Free Software Fundation) |
| GPL | General Public Licence |
| GPU | Graphics Processor Unit |
| HPC | High Performance Clusters |
| IEEE | The Institute of Electrical and Electronics Engineers |
| ILC | International Laser Centre |
| ISO | International Standards Organization |
| I/O | Input/Output |
| LAN | Local Area Network |
| LSM | Laser Confocal Microscopy |
| MIMD | Multiple Instruction, Multiple Data |
| MISD | Multiple Instruction, Single Data |
| ILC | International Laser Centre |
| MPI | Message Passing Interface |
| MRI | Magnetic Resonance Imaging |
| NUMA | Non-Uniform Memory Access |
| RADC | Ray Acceleration by Distance Coding |
| PGI | The Portland Group, Inc. |
| PSF | Point Spread Function |
| SIMD | Single Instruction, Multiple Data |
| SISD | Single Instruction, Single Data |
| SMP | Symmetrical Multi Processing |
| SPMD | Single Program, Multiple data |
| SSE | Streaming SIMD Extensions |
| SSH | Secure Shell |
| TIFF | Tagged Image File Format |