Dominic Schneider Alexander Wiebel Hamish Carr Mario Hlawitschka Gerik Scheuermann Interactive Comparison of Scalar Fields Based on Largest Contours with Applications to Flow Visualization. 1475-1482 2008 14 IEEE Trans. Vis. Comput. Graph. 6 http://dx.doi.org/10.1109/TVCG.2008.143 db/journals/tvcg/tvcg14.html#SchneiderWCHS08