نتایج جستجو برای: correlated signal enhancement

تعداد نتایج: 771646  

Journal: :The Journal of the Acoustical Society of America 1974

Journal: :Ophthalmology Glaucoma 2021

To establish whether deep learning methods are able to improve the signal-to-noise ratio of time-domain (TD) OCT images approach that spectral-domain (SD) images. Method agreement study and progression detection in a randomized, double-masked, placebo-controlled, multicenter trial for open-angle glaucoma (OAG), United Kingdom Glaucoma Treatment Study (UKGTS). The training validation cohort comp...

Journal: :ITM web of conferences 2021

Biomedical signal monitoring and recording are an integral part of medical diagnosis treatment control mechanisms. For this, enhanced signals with appropriate peak preservation required. The OWA (OrderedWeighted Aggregation) Filter used in this paper helps non-linear filtering peaks for accurate diagnosis. Weights important aspect the filter, Gaussian method KDE (Kernel Density Estimation) func...

A.Mahlooji Far, Hassan Ghassemian, Sayed Mahmoud Sakhaei,

Contrast resolution and detail resolution are two important parameters in ultrasound imaging. This paper presents a new method to enhance these parameters, simultaneously. A parallel auxiliary beamformer has been employed whose weightings are such that an estimation of the leaked signal through the main beamformer is obtained. Then the output of main beamformer is modified according to the ...

Journal: :Applied Physics Letters 2021

Imaging with non-classically correlated photon-pairs takes advantages over classical limits in terms of sensitivity and signal-to-noise ratio. However, it is still a challenge to achieve strong resilience background noise losses for practical applications. In this work, we present heralded single-pixel imaging that remarkably robust against bright severe signal losses. Using temporal correlatio...

Journal: :Remote Sensing 2014
Yunxiang Jin Xiuchun Yang Jianjun Qiu Jinya Li Tian Gao Qiong Wu Fen Zhao Hailong Ma Haida Yu Bin Xu

Grassland biomass is essential for maintaining grassland ecosystems. Moreover, biomass is an important characteristic of grassland. In this study, we combined field sampling with remote sensing data and calculated five vegetation indices (VIs). Using this combined information, we quantified a remote sensing estimation model and estimated biomass in a temperate grassland of northern China. We al...

Journal: :journal of biomedical physics and engineering 0
m. saliminasab dental student, shiraz dental school, shiraz university of medical science, shiraz, iran a. r. bahrampour professor of physics, department of physics, sharif university of technology, tehran, iran m. h. zandi assistant professor of physics, department of physics, shahid bahonar university of kerman, kerman, iran

surface-enhanced raman spectroscopy (sers) is a promising tool in the analytical science because it provides good selectivity and sensitivity without the labeling process required by fluorescence detection. this technique consists of locating the target analyte on nanometer range of roughed au-nanoparticles. the presence of the metal nanoparticles provides a tremendous enhancement to the result...

Journal: :AJNR. American journal of neuroradiology 1995
K D Westmark A J Barkovich A Sola D Ferriero J C Partridge

PURPOSE To determine the presence and location of MR contrast enhancement in infants with perinatal asphyxia and to evaluate the utility of enhancement in assessing extent of brain damage. METHODS Precontrast and postcontrast MR examinations within the first 10 days of life were evaluated in 10 infants with suspected hypoxic-ischemic birth injury. Findings were correlated with clinical birth ...

Journal: :AJNR. American journal of neuroradiology 2015
R Saat A H Laulajainen-Hongisto G Mahmood L J Lempinen A A Aarnisalo A T Markkola J P Jero

BACKGROUND AND PURPOSE MR imaging is often used for detecting intracranial complications of acute mastoiditis, whereas the intratemporal appearance of mastoiditis has been overlooked. The aim of this study was to assess the imaging features caused by acute mastoiditis in MR imaging and their clinical relevance. MATERIALS AND METHODS Medical records and MR imaging findings of 31 patients with ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید