  Light field reconstruction from images captured by focal plane sweeping can
achieve high lateral resolution comparable to the modern camera sensor. This is
impossible for the conventional micro-lenslet based light field capture
systems. However, the severe defocus noise and the low depth resolution limit
its applications. In this paper, we analyze the defocus noise and the depth
resolution in the focal plane sweeping based light field reconstruction
technique, and propose a method to reduce the defocus noise and improve the
depth resolution. Both numerical and experimental results verify the proposed
method.
