Gradient-based interpolation method for division-of-focal-plane polarimeters

作     者：Gao, Shengkui Gruev, Viktor 

作者机构：Washington Univ Dept Comp Sci & Engn St Louis MO 63130 USA 

出 版 物：《OPTICS EXPRESS》 (Opt. Express)

年 卷 期：2013年第21卷第1期

页      面：1137-1151页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：National Science Foundation [OCE-1130897] Air Force Office of Scientific Research [FA9550-10-1-0121, FA9550-12-1-0321] Division Of Ocean Sciences Directorate For Geosciences Funding Source: National Science Foundation 

主　　题：Charge coupled devices Image processing algorithms Light intensity Polarimetric imaging Underwater imaging Visible light 

摘      要：Recent advancements in nanotechnology and nanofabrication have allowed for the emergence of the division-of-focal-plane (DoFP) polarization imaging sensors. These sensors capture polarization properties of the optical field at every imaging frame. However, the DoFP polarization imaging sensors suffer from large registration error as well as reduced spatial-resolution output. These drawbacks can be improved by applying proper image interpolation methods for the reconstruction of the polarization results. In this paper, we present a new gradient-based interpolation method for DoFP polarimeters. The performance of the proposed interpolation method is evaluated against several previously published interpolation methods by using visual examples and root mean square error (RMSE) comparison. We found that the proposed gradient-based interpolation method can achieve better visual results while maintaining a lower RMSE than other interpolation methods under various dynamic ranges of a scene ranging from dim to bright conditions. (C) 2013 Optical Society of America