L2 based Colour Correction for Light Field Arrays

In recent years, there has been an increase in the popularity of Light Field (LF) imaging technology with the increase in availability of LF camera devices such as the Lytro, as well as an increase in the use of LF camera arrays. However, both camera arrays and LF cameras can create views that exhibit colour discrepancies, and previous work has already tackled similar issues when data is captured using the Lytro camera or multi-view camera systems. We previously proposed an L2 based colour transfer method to recolour the views of a Lytro light field to correct the colour fading that occurs on outer views of the LF. This method was based on our earlier L2 based methods. In this paper, we propose a new L2 based cost function for color correction and a new propagation scheme so that this framework can be extended to colour correcting LF arrays. We also take advantage of a colour chart captured in the scene to not only ensure that colours are consistent across the LF, but also match the ground truth colour chart.

Paper

L2 based Colour Correction for Light Field Arrays

Collaborators

Mairéad Grogan, Aljosa Smolic.

Reference

Mairéad Grogan and Aljosa Smolic.
L2 based Colour Correction for Light Field Arrays.
In proceedings of the 16th ACM SIGGRAPH European Conference on Visual Media Production, London, 2019.

Related Publication

High Quality Light Field Extraction from Raw Plenoptic Data

Implementation

Code coming soon.