Sui Gong

Date of Award


Document Type


Degree Name

Doctor of Philosophy (PhD)


Computer Science

Committee Chair

Timothy S. Newman

Committee Member

Heggere S. Ranganath

Committee Member

Mary Ellen Weisskopf

Committee Member

Ramazan Aygun

Committee Member

David Pan


Information visualization., Computer graphics.


This dissertation presents a collection of visualization techniques that highlight features (i.e, certain visual aspects that are interesting to the viewers, such as sharp corners on a boundary). These include three Marching Squares extensions: (1) Sharp Corner Sensitive Marching Squares (SCS-MS) that recovers sharp corner features in isocontours, (2) Dual Marching Squares (DMS) that recovers curved features in isocontours and (3) Fine Feature Sensitive Marching Squares (FFS-MS) that recovers small and narrow areas enclosed by boundaries. Also included is a novel motion visualization technique that generates speedlines that mimick the speedline style of Manga artist Osamu Tezuka. Experimental results and analyses of the techniques are also presented.



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