Three-dimensional geometric coding using mixture models and the estimation quantization algorithm
| dc.contributor.advisor | Baraniuk, Richard G. | en_US |
| dc.creator | Lavu, Sridhar | en_US |
| dc.date.accessioned | 2009-06-04T08:49:47Z | en_US |
| dc.date.available | 2009-06-04T08:49:47Z | en_US |
| dc.date.issued | 2003 | en_US |
| dc.description.abstract | 3D surfaces are used in applications such as animations, 3D object modeling and visualization. The geometries of such surfaces are often approximated using polygonal meshes. This thesis aims to compress 3D geometry meshes by using an algorithm based on normal meshes and the Estimation-Quantization (EQ) algorithm. Normal meshes are multilevel representations where finer level vertices lie in a direction normal to the local surface and therefore compress the vertex data to one scalar value per vertex. A mixture distribution model is used for the wavelet coefficients. The EQ algorithm uses the local neighborhood information and Rate-Distortion optimization to encode the wavelet coefficients. We achieve performance gains of 0.5--1dB compared to the zerotree coder for normal meshes. | en_US |
| dc.format.extent | 85 p. | en_US |
| dc.format.mimetype | application/pdf | en_US |
| dc.identifier.callno | THESIS E.E. 2003 LAVU | en_US |
| dc.identifier.citation | Lavu, Sridhar. "Three-dimensional geometric coding using mixture models and the estimation quantization algorithm." (2003) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/17603">https://hdl.handle.net/1911/17603</a>. | en_US |
| dc.identifier.uri | https://hdl.handle.net/1911/17603 | en_US |
| dc.language.iso | eng | en_US |
| dc.rights | Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder. | en_US |
| dc.subject | Electronics | en_US |
| dc.subject | Electrical engineering | en_US |
| dc.subject | Computer science | en_US |
| dc.title | Three-dimensional geometric coding using mixture models and the estimation quantization algorithm | en_US |
| dc.type | Thesis | en_US |
| dc.type.material | Text | en_US |
| thesis.degree.department | Electrical Engineering | en_US |
| thesis.degree.discipline | Engineering | en_US |
| thesis.degree.grantor | Rice University | en_US |
| thesis.degree.level | Masters | en_US |
| thesis.degree.name | Master of Science | en_US |
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