@TECHREPORT{Gumhold-2004-PPM,
   AUTHOR = {Stefan Gumhold},
   INSTITUTION = {Wilhelm-Schickard-Institut f{\"u}r Informatik, University of T{\"u}bingen, Germany},
   NUMBER = {WSI-2004-4},
   AFFILIATIONS = {CGV,GRIS},
   AREAS = {areagp},
   TITLE = {Progressive Polygonal Meshes},
   URL = {http://tu-dresden.de/die_tu_dresden/fakultaeten/fakultaet_informatik/smt/cgv/publikationen/2004/ppm/ppmTR.pdf},
   YEAR = {2004},
   KEYWORDS = {GRIS},
   ABSTRACT = {In this work we build a progressive polygonal mesh based on face clustering. The basic
	  simplification operations are the edge-removal and the edge-join operations. There is no need to
	  tessellate non-triangular models as the proposed representation is fully polygonal. We investigate
	  three different error measures to build the progressive representation based on a priority queue
	  based face clustering algorithm.
	  The progressive polygonal mesh representation is built with the inverse refinement operations
	  - the edge-insert and edge-split operations, which can be implemented very efficiently within a
	  newly proposed half-edge data structure. We suggest a progressive file format that allows to read a
	  polygonal model faster than with the standard binary file formats. Finally, we extend the proposed
	  half-edge data structure to a progressive representation that does not consume any further storage
	  space and allows for very fast changes in the mesh resolution.}
}