نتایج جستجو برای: polarimetry
تعداد نتایج: 4411 فیلتر نتایج به سال:
purpose : this study was designed to assess and compare the thickness of the peripapillar retinal nerve fiber layer (rnfl) in amblyopic and normal eyes in unilateral strabismic ambelyopia using scanning laser polarimeter. methods : scanning laser polarimetry was performed on 17 patients with unilateral strabismic amblyopia who had an absence of neurologic diseases or glaucoma with a minimum age...
The development of Radar Polarimetry and Radar Interferometry is advancing rapidly, and these novel radar technologies are revamping “Synthetic Aperture Radar Imaging” decisively. In this exposition the successive advancements are sketched; beginning with the fundamental formulations and high-lighting the salient points of these diverse remote sensing techniques. Whereas with radar polarimetry ...
In this paper, we investigate the potential of the compact polarimetry mode at longer wavelengths from space for soil moisture estimation using SMAP data. Compact polarimetry consists of transmitting a single polarization while receiving two polarizations. At longer wavelengths, one of the main challenges associated with compact polarimetry from space is Faraday rotation estimation and correcti...
BACKGROUND We compared the parameters of retinal nerve fibre layer in patients with advanced glaucoma with the use of different OCT (Optical Coherence Tomograph) devices in relation to analogical measurements performed with GDx VCC (Nerve Fiber Analyzer with Variable Corneal Compensation) scanning laser polarimetry. MATERIAL/METHODS Study subjects had advanced primary open-angle glaucoma, pre...
BACKGROUND Since 1990, there has been significant research devoted toward development of a noninvasive physiological glucose sensor. In this article, we report on the use of optical polarimetry for the noninvasive measurement of physiological glucose concentration in the anterior chamber of the eye of New Zealand white (NZW) rabbits. METHOD Measurements were acquired using a custom-designed l...
PURPOSE To evaluate a noninvasive technique to detect the leakage point of central serous chorioretinopathy (CSR), using a polarimetry method. DESIGN Prospective cohort study. METHODS SETTING Institutional practice. PATIENTS We examined 30 eyes of 30 patients with CSR. MAIN OUTCOME MEASURES Polarimetry images were recorded using the GDx-N (Laser Diagnostic Technologies). We computed ...
We present measurements of the local diattenuation and retardance of thin-film specimens by using techniques that combine near-field scanning optical microscopy (NSOM) and a novel polarization-modulation (PM) polarimetry utilizing Fourier analysis of the detected intensity signal. Generally, quantitative near-field polarimetry is hampered by the optical anisotropy of NSOM probes. For example, w...
AIMS To evaluate the clinical value of scanning laser polarimetry with the nerve fibre analyser type II in primary open angle glaucoma (POAG) and capsular glaucoma. METHODS Scanning laser polarimetry was performed on one eye of 30 patients suffering from POAG, 25 patients suffering from capsular glaucoma, and on 35 healthy control subjects. The retinal nerve fibre layer (RNFL) thickness value...
The aim of the work described in this paper has been the development of an innovative ship detector, based on synthetic aperture radar (SAR) polarimetry and the methodology pioneered in [1-3], namely perturbation analysis. Ship detection is a key topic for the surveillance of coastal areas. In particular, SAR presents an advantageous technology, since the observations are independent on weather...
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