Abstract
We propose an algorithm for content-based retrieval of representative subsets of volume data. Our technique is based on thresholding of the eigenvalues of the Hessian matrix. We compare our approach to feature detection based on the gradient magnitude and observe that our method allows to represent volumes by a smaller amount of voxels. Practical applications of our method include fast volume display due to object-space oriented techniques, generation of preview data sets for web- based repositories, and the related progressive visualization over the network. For these applications, the size of the representative subset can be estimated automatically with respect to the bottleneck of the visualization system or a network bandwidth.Download full paper
Jiri Hladuvka, Eduard Gröller, "Exploiting the Hessian Matrix for Content-Based Retrieval of Volume-Data Features", In The Visual Computer, 18(4), pp. 207-217, 2002., Hladuvka-2002-TVC.pdf (347 KB).BibTeX Entry
@Article{Hladuvka-2002-TVC, author = {Ji{\v r}{\'{\i}} Hlad{\accent23u}vka and Eduard Gr{\"o}ller", title = {Exploiting the {H}essian Matrix for Content-Based Retrieval of Volume-Data Features}, journal = {The Visual Computer}, volume = {18}, number = {4}, pages = {207--217}, year = {2002} }