Friday , September 21 2018

Geometry Compression of 3D Mesh Utilising Robust Second Order Blind Identification Algorithm

Mircea CURILĂ
University of Oradea, Department of Physics-Informatics-Chemistry
str. Universităţii nr. 1, zip code 410087 Oradea, Romania

Sorin CURILĂ
University of Oradea, Department of Electronics
str. Universităţii nr. 1, zip code 410087 Oradea, Romania 

Abstract: The 3D mesh geometry is spatially correlated on each direction in the Cartesian coordinate system, this redundancy leading to a huge VRML file. In order to decorrelate the geometry of 3D mesh, the linear prediction rule used by actual methods is substituted by a Blind Sources Separation technique. For this reason we propose to take the correlated geometry of 3D mesh as observations and decorrelated geometry as sources corresponding at largest energy. The global mixing matrix, achieved by the geometry division into blocks, represents the bitstream of compressed file. Its elements are quantized, binary approximated and encoded using arithmetic coding, providing effective compression. BSS technique proposed is entitled Robust Second Order Blind Identification.

Keywords: Robust Second Order Blind Identification, eigenvalues decomposition, Prediction, 3D mesh, compression.

Mircea Curilă is Associate Professor in Informatics, Head of Physics-Informatics-Chemistry Department, Faculty of Environmental Protection, University of Oradea, Romania. His fields of interest are in image enhancement, higher order statistics, image compression, blind sources separation, virtual reality and virtual environment

Sorin Curilă is Associate Professor in Electronics Department, Faculty of Electrical Engineering and Information Technology, University of Oradea, Romania. His fields of interest are in image representation, image enhancement, higher order statistics and image compression. He has published more than 55 technical papers in International, National journals and conferences

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CITE THIS PAPER AS:
Mircea CURILĂ, Sorin CURILĂ, Geometry Compression of 3D Mesh Utilising Robust Second Order Blind Identification Algorithm, Studies in Informatics and Control, ISSN 1220-1766, vol. 17 (4), pp. 421-432, 2008.