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A division-of-focal-plane or microgrid image polarimeter enables us toacquire a set of polarization images in one shot. Since the polarimeterconsists of an image sensor equipped with a monochrome or color polarizationfilter array (MPFA or CPFA), the demosaicking process to interpolate missingpixel values plays a crucial role in obtaining high-quality polarizationimages. In this paper, we propose a novel MPFA demosaicking method based onedge-aware residual interpolation (EARI) and also extend it to CPFAdemosaicking. The key of EARI is a new edge detector for generating aneffective guide image used to interpolate the missing pixel values. We alsopresent a newly constructed full color-polarization image dataset capturedusing a 3-CCD camera and a rotating polarizer. Using the dataset, weexperimentally demonstrate that our EARI-based method outperforms existingmethods in MPFA and CPFA demosaicking.

Monochrome and Color Polarization Demosaicking Using Edge-Aware Residual Interpolation