Master Thesis MSTR-2016-78

BibliographySchinkel, Florian: Simulation and rendering of light field data in the Mitsuba renderer.
University of Stuttgart, Faculty of Computer Science, Electrical Engineering, and Information Technology, Master Thesis No. 78 (2016).
89 pages, english.

Light fields offer the opportunity to change properties of pictures, even after they were shot. There is no possibility of recording all four necessary dimensions of a light field with a 4D camera, but many different techniques for generating light fields from normal 2D pictures exist. Comparing the quality and usability of these techniques is however difficult, because they often only rely on prototypes or are complex and costly to reproduce. Virtual simulations of theses techniques offer an easy and fast method for such comparisons. The rendering of light fields can be done with normal render software, but which render method is best suited for it, is unclear. This thesis wants to answer the question if the Mitsuba renderer is capable of simulating the acquisition of light fields and rendering light field data. In several simulations, Mitsuba will be used to create light fields from multiple test scenes. In addition, virtual light field data will be rendered with Mitsuba in different ways. Each time it will be evaluated, which of Mitsubas rendering methods are well suited for the task and which are not. In each case the required time and image quality of the results will be assessed. Because Mitsuba does not support light fields by default, a custom software framework was implemented for simulations and tests. The framework allows to use Mitsuba for light field acquisition and adds the functionality to render light field data to Mitsuba. The thesis will show that Mitsubas methods of rendering are absolutely capable of creating synthetic light fields or rendering them. Depending on the use case however, the choice for the right rendering technique differs. For example, some methods are not capable of creating light fields of specific scenes, while other methods can not be used for rendering.

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Department(s)University of Stuttgart, Institute of Visualisation and Interactive Systems, Visualisation and Interactive Systems
Superviser(s)Fuchs, Jun.-Prof. Martin; Wender, Alexander
Entry dateJune 6, 2019
   Publ. Computer Science