Resolution Enhancement for Far Objects by Using Direct Pixel Mapping Method in Curving-Effective Integral Imaging

Abstract

We proposed a new method to improve the resolution of far object image in curving effective integral imaging system. Basically, the curving effective integral imaging(CEII) system can improve the resolution of the reconstructed images with an increased sampling rate of elemental images. However, in the case when an object located far from the lenslet array is picked up, the low resolution of the reconstructed images of the far object has been a primary problem because the sampling rate is very low. In order to solve this drawback, by using the direct pixel mapping(DPM) method the EIA picked up from a far object is transformed into a new EIA that virtually looks like the EIA picked up from the object originally located close to the lenslet array. From this new EIA, highly resolution-enhanced images of far object could be reconstructed in the CEII system. To show the feasibility of the proposed method, simulation results are compared with the conventional method.

Sustainable protocols for direct C–H bond arylation of (hetero)arenes

“…as the base, Ir( ppy) 3 (0.5 mol%) as the photoredox catalyst and DMSO as the solvent, for 24 h under irradiation with a 14 W compact fluorescent light lamp. 289 The reaction proceeded at room temperature for aryl iodides but at higher temperatures (70 °C) for the more accessible and less expensive bromides, affording the biaryl products 240 in good yields (Scheme 90). However, one of the main disadvantages of this protocol is that it required the use of a very large excess (about 100 equivalents) of the arene, which clearly limited the overall sustainability of the process.…”

“…Scheme 90 Photochemical direct C-H bond arylation of benzene 239 catalyzed by Ir( ppy) 3 (0.5 mol%) as the photoredox catalyst under irradiation with a 14 W compact fluorescent light lamp, reported in 2013 by Li and co-workers 289. …”

Leaving Groups in Metal‐Free Arylations: Make Your Choice!

“…Photoredox catalysis has been recently demonstrated to be a suitable strategy to perform SET-based arylations, despite only few photocatalysts (e.g. Ir(III)-based complexes) [21] presents electrochemical properties in their excited states able to reductively quench the haloarenes ((E = ca. +1.5 V vs. SCE).…”

Fast colorimetric screening for visible light photocatalytic oxidation and reduction reactions

“…6). 57,58 An interesting approach for such transformation was reported using dimeric gold complexes. 59 All reactions produce the corresponding acid H-X as a stoichiometric byproduct.…”