Skip to search boxSkip to navigationSkip to main content

Light field geometry of a standard plenoptic camera

Research Output: Contribution to journal Article Peer-review

Open access

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.

Publication Information

Output type

Research Output: Contribution to journal Article Peer-review

Original language

English

Pages from-to (Number of pages)

Pages 26659-26673

Journal (Volume, Issue Number)

Optics Express (Volume 22, Issue 22)

Publication milestones

  • Published - 01/01/2014

Publication status

Published - 01/01/2014

External Publication IDs

  • handle.net: 10547/335971
  • Scopus: 84920020176

Access to documents

Publication metrics

Metrics

Download statistics
Download count
2