منابع مشابه
Ultrawide Baseline Facade Matching for Geo-localization
Matching street-level images to a database of airborne images is hard because of extreme viewpoint and illumination differences. Color/gradient distributions or local descriptors fail to match forcing us to rely on the structure of self-similarity of patterns on facades. We propose to capture this structure with a novel “scale-selective self-similarity” (S) descriptor which is computed at each ...
متن کاملUltrawide‐Bandgap Semiconductors: Research Opportunities and Challenges
Ultrawide-bandgap (UWBG) semiconductors, with bandgaps significantly wider than the 3.4 eV of GaN, represent an exciting and challenging new area of research in semiconductor materials, physics, devices and applications. Because many figures-ofmerit for device performance scale nonlinearly with bandgap, these semiconductors have long been known to have potential compelling advantages over their...
متن کاملE-SPAN: Enhanced-SPAN with Directional Antenna
Abstruc/A Mobile Ad-hoc'NETwork (MANET), also referred as Independent Basic Service Set (IBSS), has nodes which not only sendlreceive'packets associated with them but also co-operate in forwarding dataand control packets for the network. Efficient use of energy by the mobile nodes is very important to increase the lifetime of MANET. Since nodes seldom have packets to receive, they remain in Idl...
متن کاملUltrawide-field Fluorescein Angiography for Evaluation of Diabetic Retinopathy
PURPOSE To investigate the advantages of ultrawide-field fluorescein angiography (FA) over the standard fundus examination in the evaluation of diabetic retinopathy (DR). METHODS Ultrawide-field FAs were obtained in 118 eyes of 59 diabetic patients; 11 eyes with no DR, 71 eyes with nonproliferative diabetic retinopathy (NPDR), and 36 eyes with proliferative diabetic retinopathy (PDR), diagnos...
متن کاملSilicon photonic crystal filter with ultrawide passband characteristics.
We report on what is believed to be the first example of an ultrawide, bandpass filter, based on a high-contrast multicomponent one-dimensional Si photonic crystal (PC). The effect of the disappearance of a limited number of flat stopbands and their replacement with extended passbands is demonstrated over a wide IR range. The passbands obtained exhibit a high transmission of 92% to 96% and a su...
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ژورنال
عنوان ژورنال: Nature Photonics
سال: 2016
ISSN: 1749-4885,1749-4893
DOI: 10.1038/nphoton.2016.219