S.  Wanner and Goldlücke, B., ?Variational light field analysis for disparity estimation and super-resolution?, IEEE Trans. Pattern Analysis Machine Intelligence, vol. 36, p. 606--619, 2014.

B.  Goldlücke and Wanner, S., ?The Variational Structure of Disparity and Regularization of 4D Light Fields?, in IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2013.