Abstract
The design of micropolarizer array (MPA) patterns in Fourier domain provides an efficient approach to reconstruct and investigate the polarization information. Inspired by Alenin’s works, in this paper, we propose an improved design model to cover both 2 × N MPAs and other original MPAs, by which an entirely new class of MPA patterns is suggested. The performance of the new patterns is evaluated through Fourier domain analysis and numerical simulations compared with the existing MPAs. Particularly, we analyze the reconstruction accuracy of the first three Stokes parameters and degree of linear polarization (DoLP) in detail. The experimental results confirm that the 2 × 2 × 2 MPA provides the highest reconstruction quality of s0, s1, s2 and DoLP in terms of quantitative measures and visual quality, while the 3 × 3 diagonal MPA achieves the state-of-the-art best results in case of single-snapshot systems. The guidance of this extended model and new diagonal MPAs show its massive potential for the division of focal plane (DoFP) polarization imaging applications.
Highlights
The design of micropolarizer array (MPA) patterns in Fourier domain provides an efficient approach to reconstruct and investigate the polarization information
Despite their previous superior efforts advanced the available set of MPA patterns and improved the reconstruction quality of Stokes parameters and degree of linear polarization (DoLP) images, these works were merely focused on the family of 2 × N patterns, and the 2 × 2 × N MPAs have superior performance in reconstruction quality, these MPAs should be used in multiple-snapshots systems
The value of PSNR and gradient magnitude similarity deviation (GMSD) used for comparison are shown in Table 2, and the best results in each row are in boldface and underlined among the proposed MPA layouts
Summary
The design of micropolarizer array (MPA) patterns in Fourier domain provides an efficient approach to reconstruct and investigate the polarization information. The experimental results confirm that the 2 × 2 × 2 MPA provides the highest reconstruction quality of s0, s1, s2 and DoLP in terms of quantitative measures and visual quality, while the 3 × 3 diagonal MPA achieves the state-of-the-art best results in case of singlesnapshot systems. The guidance of this extended model and new diagonal MPAs show its massive potential for the division of focal plane (DoFP) polarization imaging applications. The results demonstrate that this improved model can further expand the scope of MPAs and effectively design a new type of patterns with higher performance, which may bring a great applications for the DoFP polarization detection technique
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