Diploma Thesis DIP-3677

BibliographySiedelmann, Hendrik: Recording, Compression and Representation of Dense Light Fields.
University of Stuttgart, Faculty of Computer Science, Electrical Engineering, and Information Technology, Diploma Thesis No. 3677 (2015).
141 pages, english.
CR-SchemaI.4.1 (Digitization and Image Capture)
I.4.7 (Image Processing and Computer Vision Feature Measurement)
I.4.10 (Image Representation)
E.4 (Data Coding and Information Theory)
Abstract

Abstract The concept of light fields allows image based capture of scenes, providing, on a recorded dataset, many of the features available in computer graphics, like simulation of different viewpoints, or change of core camera parameters, including depth of field. Due to the increase in the recorded dimension from two for a regular image to four for a light field recording, previous works mainly concentrate on small or undersampled light field recordings. This thesis is concerned with the recording of a dense light field dataset, including the estimation of suitable sampling parameters, as well as the implementation of the required capture, storage and processing methods. Towards this goal, the influence of an optical system on the, possibly bandunlimited, light field signal is examined, deriving the required sampling rates from the bandlimiting effects of the camera and optics. To increase storage capacity and bandwidth a very fast image compression methods is introduced, providing an order of magnitude faster compression than previous methods, reducing the I/O bottleneck for light field processing. A fiducial marker system is provided for the calibration of the recorded dataset, which provides a higher number of reference points than previous methods, improving camera pose estimation. In conclusion this work demonstrates the feasibility of dense sampling of a large light field, and provides a dataset which may be used for evaluation or as a reference for light field processing tasks like interpolation, rendering and sampling.

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Department(s)University of Stuttgart, Institute of Visualisation and Interactive Systems, Visualisation and Interactive Systems
Superviser(s)Wender, Alexander
Entry dateMarch 16, 2015
   Publ. Computer Science