LOD Modelling of polygonal models
Machine Graphics & Vision International Journal
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We propose a new automatic method for generatingLODs of a given polygonal model that is based on edgecollapse simplification operation and exploits a variant ofmultiple choice optimization (MCO) framework [20]. Inan edge collapse algorithm, the way how to measure thegeometric deviation caused by an edge collapse transformationplays a key role. We introduce a new measure oflocal geometric deviation and a memory efficient methodfor its global evaluation; these local and global evaluationtechniques are simple to implement, involve short executiontimes, and preserve geometric features and discontinuitiesautomatically. Results and numerical comparisonsshow that our algorithm generates simplified models at differentLODs of good visual fidelity, and consumes less memoryand performs better in automatically preserving visuallyimportant features than other methods especially QSlim[6].