We propose and experimentally demonstrate a scheme for accelerated fast BOTDA. The effect of signal-to-noise ratio (SNR) on recovery performance compressed sensing is simulated analyzed, it found that reduction in SNR requires much larger frequency data to recover the original Brillouin gain spectrum (BGS). To enable high probability, Block-Matching 3D filtering (BM3D) algorithm employed enhanc...

Accurate and timely land surface phenology (LSP) provides essential information for investigating the responses of terrestrial ecosystems to climate changes quantifying carbon energy cycles on Earth. LSP has been widely investigated using daily Visible Infrared Imaging Radiometer Suite (VIIRS) or Moderate Resolution Spectroradiometer (MODIS) observations, but resultant phenometrics are frequent...

PURPOSE To assess whether the detection of colorectal lesions can be improved using high spatial resolution VIBE imaging. MATERIALS AND METHODS 48 patients underwent same-day dark lumen MR colonography (MRC) and conventional colonoscopy (CC) as the standard for the detection of colorectal masses. MRC was performed using contrast-enhanced standard and high spatial resolution T1-weighted 3D VIB...

geographic information and analysis provide a wide range of data and techniques to monitor and manage natural resources. as an important case, in arid and semi-arid areas, water management is critical for both local governance and citizens. as a result, the estimation of water potential brought by snowmelt runoff and rainfalls seems to be very useful and important for these areas. hydrological ...

By identifying the effect of any parameter such as distance, attenuation and scattering on the Line Spread Function (LSF), one can compensate the quantitative and qualitative destructive effect of such parameters by deconvolution method. Using a 99mTC line source, this study was performed on a single head ADAC SPECT system operating in planar mode. Variation of FWTM and FWHM and LSFs as a...

Monitoring of (surface) urban heat islands (UHI) is possible through satellite remote sensing of the land surface temperature (LST). Previous UHI studies are based on medium and high spatial resolution images, which are in the best-case scenario available about four times per day. This is not adequate for monitoring diurnal UHI development. High temporal resolution LST data (a few measurements ...

Super-resolution microscopy normally requiring complex and cumbersome optics is not applicable for in situ imaging through a narrow channel. Here, we demonstrate single hair-thin multimode fiber (MMF) endoscope (less than 250 ${\mu}m$) vivo light-field nano-imaging, which called spatial-frequency tracking adaptive beacon encoded nano-endoscopy (STABLE nano-endoscopy) that enables three-dimensio...

Information on the area and spatial distribution of cropland resources is very important for agricultural monitoring sustainable development. The existing evaluation analysis mainly focus first-class types, resolution cover products studied low (<30 m), which cannot meet needs food security assessment resources. Therefore, in this paper, four published with a 30 m (GFSAD30SEACE, GLC_FCS30-20...