A Graph Based Interface for Representing Volume Visualization Results

This paper discusses a graph based user interface for representing the results of the volume visualization process. As images are rendered, they are connected to other images in a graph based on their rendering parameters. The user can take advantage of the information in this graph to understand how certain rendering parameter changes affect a dataset, making the visualization process more efficient. Because the graph contains more information than is contained in an unstructured history of images, the image graph is also helpful for collaborative visualization and animation. 1 Introduction Direct volume rendering has received considerable attention because it is effective for visualizing features in the data that are either very fine or difficult to define analytically. Several volume rendering algorithms have been introduced including the ray casting [7], projection [3], splatting [15] and shear warp [6] methods. Various optimization and acceleration techniques for volume renderin..