Authors
Hahne, ChristopherAggoun, Amar
Haxha, Shyqyri
Velisavljevic, Vladan
Fernández, Juan Carlos Jácome
Issue Date
2014-10-21
Metadata
Show full item recordAbstract
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.Citation
Light field geometry of a standard plenoptic camera 2014, 22 (22):26659 Optics ExpressPublisher
Optical Society of AmericaJournal
Optics ExpressAdditional Links
https://www.osapublishing.org/abstract.cfm?URI=oe-22-22-26659Type
Journal articleLanguage
enISSN
1094-4087Sponsors
European commisionae974a485f413a2113503eed53cd6c53
10.1364/OE.22.026659