Web-based volumetric data retrieval
T. Todd Elvins, Ramesh Chandra Jain · 1995
Content-based retrieval of three-dimensional scalar data is increasingly necessary as on-line repositories of data volumes continue to grow.This paper describes preliminary work in retrieving and displaying scalar volumetric data via web-browser user interfaces.An HTML-based web-browser is used to construct queries based on user-specified textual keywords and a voxel value histogram.Shape-based query handling is in development.Prc-rendered images of volumes matching the user's query are displayed and the user picks one of these to select a volume for further study.The selected volume is isosurfaced "on-the-fly", according to the user-supplied threshold value, and the resulting geometry is loaded into a VRML-hased web-browser for interactive exploration and analysis.The system described here is being used as a platform for further research in content-based retrieval algorithms for volumetric data.