Abstraction and processing of large amounts of animated 3D data

Abstract : In this thesis, we explore intermediary structures and their relationship to the employed algorithms in the context of photorealistic (PR) and non-photorealistic (NPR) rendering. We present new structures for rendering as well as new uses for existing structures. We present three original contributions in the NPR and PR domain: First, we present binary shading, a method to generate stylized black and white images, inspired by comic artists, using appearance and geometry in a graph-based energy formulation. The user can control the algorithm to generate images of different styles and representations. The second work allows the temporally coherent parameterization of line animations for texturing purposes. We introduce a spatio-temporal structure over the input data and an energy formulation for a globally optimal parameterization. Similar to the work on binary shading, the energy formulation provides a an important and simple control over the output. Finally, we present an extension to Point-based Global Illumination, a method used extensively in movie production during the last years. Our work allows compressing the data generated by the original algorithm using quantification. It is memory-efficient and has only a neglegible time overhead while enabling the rendering of larger scenes. The user can easily control the strength and quality of the compression. We also propose a number of possible extensions and improvements to the methods presented in the thesis.
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Theses
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https://pastel.archives-ouvertes.fr/pastel-00958339
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Submitted on : Wednesday, March 12, 2014 - 12:07:11 PM
Last modification on : Thursday, October 17, 2019 - 12:36:07 PM
Long-term archiving on : Thursday, June 12, 2014 - 11:21:22 AM

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  • HAL Id : pastel-00958339, version 1

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Bert Buchholz. Abstraction and processing of large amounts of animated 3D data. Other. Télécom ParisTech, 2012. English. ⟨NNT : 2012ENST0080⟩. ⟨pastel-00958339⟩

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