  A division-of-focal-plane or microgrid image polarimeter enables us to
acquire a set of polarization images in one shot. Since the polarimeter
consists of an image sensor equipped with a monochrome or color polarization
filter array (MPFA or CPFA), the demosaicking process to interpolate missing
pixel values plays a crucial role in obtaining high-quality polarization
images. In this paper, we propose a novel MPFA demosaicking method based on
edge-aware residual interpolation (EARI) and also extend it to CPFA
demosaicking. The key of EARI is a new edge detector for generating an
effective guide image used to interpolate the missing pixel values. We also
present a newly constructed full color-polarization image dataset captured
using a 3-CCD camera and a rotating polarizer. Using the dataset, we
experimentally demonstrate that our EARI-based method outperforms existing
methods in MPFA and CPFA demosaicking.
