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Light field geometry of a standard plenoptic camera

Hahne, Christopher, Aggoun, Amar, Haxha, Shyqyri, Velisavljevic, Vladan, Fernández, Juan Carlos Jácome (2014) Light field geometry of a standard plenoptic camera. Optics Express, 22 (22). pp. 26659-26673. ISSN 1094-4087. (doi:10.1364/OE.22.026659) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:43769)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1364/OE.22.026659

Abstract

The Standard Plenoptic Camera (SPC) is an innovation in photography, allowing for acquiring two-dimensional images focused at different depths, from a single exposure. Contrary to conventional cameras, the SPC consists of a micro lens array and a main lens projecting virtual lenses into object space. For the first time, the present research provides an approach to estimate the distance and depth of refocused images extracted from captures obtained by an SPC. Furthermore, estimates for the position and baseline of virtual lenses which correspond to an equivalent camera array are derived. On the basis of paraxial approximation, a ray tracing model employing linear equations has been developed and implemented using Matlab. The optics simulation tool Zemax is utilized for validation purposes. By designing a realistic SPC, experiments demonstrate that a predicted image refocusing distance at 3.5 m deviates by less than 11% from the simulation in Zemax, whereas baseline estimations indicate no significant difference. Applying the proposed methodology will enable an alternative to the traditional depth map acquisition by disparity analysis.

Item Type: Article
DOI/Identification number: 10.1364/OE.22.026659
Subjects: T Technology
Divisions: Faculties > Sciences > School of Engineering and Digital Arts
Depositing User: Tina Thompson
Date Deposited: 29 Oct 2014 10:52 UTC
Last Modified: 29 May 2019 13:18 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/43769 (The current URI for this page, for reference purposes)
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