Accelerating 3D Convolution using Graphics Hardware

February 19th, 2004

This paper from the VIS Group Stuttgart shows the first volume filtering algorithm that uses OpenGL for the convolution process. Filtering volume data is useful for noise reduction, feature detection, and segmentation. The process is significantly accelerated on SGI graphics workstations with hardware support for two-dimensional image convolution in the frame buffer. Generic 3D convolution can be added as a powerful tool in interactive volume visualization toolkits. See also the project page for more about hardware-based filtering. (Accelerating 3D Convolution using Graphics Hardware. Matthias Hopf and Thomas Ertl. Proc. Visualization 1999, pp 471–474.)