• The satellite image was classified using object-based image analysis (OBIA) techniques, taking into account spectral, spatial, and context information as well as hierarchical properties. (scirp.org)
  • We report about the implementation of the 10Megapixel phase-only liquid crystal on silicon spatial light modulator for the visible and short-wave infrared spectral bands. (spie.org)
  • Airborne measurements of pure Saharan dust extinction and backscatter coefficients, the corresponding lidar ratio and the aerosol optical thickness (AOT) have been performed during the Saharan Mineral Dust Experiment 2006, with a high spectral resolution lidar. (herts.ac.uk)
  • High spatial, temporal, and spectral resolution imagery was used to classify the amount of leafy spurge present with ground and aerial-based imagery. (montana.edu)
  • The forecast runs every hour with 3-6 lead-time, and output at 1 km spatial and 15-minute temporal resolutions. (confex.com)
  • We also tested and compared the spatial and temporal resolutions of A. forskalii in the intensity and polarization domains. (bgu.ac.il)
  • However, this modality can be technically limited by temporal resolution, beat-to-beat variability, and stitching artifact. (medscape.com)
  • abstract = "Traditional medium access control (MAC) protocols utilize temporal mechanisms such as access probability or backoff interval adaptation for contention resolution. (illinois.edu)
  • ABSTRACT Recent developments in the geographical sciences and technologies, namely geographical epidemiology, geographical information systems, global positioning systems and spatial data analysis brings about a unique opportunity to investigate the role of "place" in human health in a scientific manner. (who.int)
  • As a result of our study, we propose in this paper a new algorithm for spatial reference resolution together with a scanning mechanism. (dfki.de)
  • The algorithm uses high spatial and temporal resolution (0.06 km and 1 min) radar data to predict the evolving distribution of rainfall rate. (confex.com)
  • In this paper, we propose a dynamic spatial backoff algorithm using the Joint control of carrier sense threshold and transmission rate. (illinois.edu)
  • Two sources of environmental data were used as input to the surfacing algorithm, US Environmental Protection Agency (EPA) Air Quality System (AQS) PM2.5 in-situ data and National Aeronautics and Space Administration (NASA) Moderate Resolution Imaging Spectroradiometer (MODIS) aerosol optical depth remotely sensed data. (cdc.gov)
  • While in some instruments, like cameras and telescopes, spatial resolution is directly connected to angular resolution, other instruments, like synthetic aperture radar or a network of weather stations, produce data whose spatial sampling layout is more related to the Earth's surface, such as in remote sensing and satellite imagery. (wikipedia.org)
  • From simulations an angular resolution of about 1.5o for the photon source reconstruction can be expected for the energy range around 3 - 5 MeV, provided that a spatial resolution of 3 mm can be reached in the absorbing scintillator [1]. (degruyter.com)
  • If scan duration is fixed, collecting more diffusion-sensitized gradient directions can increase angular resolution at the expense of spatial. (elsevierpure.com)
  • 2mm DTI scans are common, but improved angular resolution may add temporal stability, and benefits for tractography. (elsevierpure.com)
  • This has led to the following research objective: To assess the sensitivity of discharge characteristics to RCM spatial resolution (12.5, 25 and 50 km) simulated by different versions of HBV having different parameterizations for catchments with different characteristics (sizes and topography) in the Rhine basin. (utwente.nl)
  • To assess the sensitivity of discharge characteristics to RCM spatial resolution, the total model performance is obtained. (utwente.nl)
  • Further, to obtain the sensitivity of discharge characteristics to RCM spatial resolution when simulated by different hydrological models, different versions of HBV are used. (utwente.nl)
  • To make sure that the results showing the sensitivity of discharge characteristics to RCM spatial resolution are really caused by the change in spatial resolution and not influenced by other aspects, no bias correction or statistical downscaling are applied on the output of the RCMs. (utwente.nl)
  • We also measured how spatial and temporal sensitivity is influenced by the prior presentation of fearful faces - as emotional content could favor MC processing over PC one - but found no evidence of emotional modulation in either group. (eur.nl)
  • In root-filled teeth , sensitivity and accuracy were higher for 25 lp/mm and spatial resolution had no influence on specificity . (bvsalud.org)
  • Often, the spatial resolution of remotely sensed imagery is described only in terms of pixel spacing, or Ground Sample Distance (GSD). (i2rcorp.com)
  • Functional imaging studies have additional advantages of increases in both the contrast and the spatial specificity of the susceptibility based BOLD signal. (openneuroimagingjournal.com)
  • The second part draws distinctions between image resolution, spatial specificity, and functional specificity of the fMRI signals that can be acquired at high fields, suggesting practical limitations for attainable resolutions of fMRI experiments at a given field, given the current state of the art in imaging techniques. (openneuroimagingjournal.com)
  • Utilizing the spatial information inherent in panchromatic very high spatial resolution (VHSR) imagery, we explored the use of tree crown metrics for identifying leading species over four study sites in the Yukon Territory, Canada. (gc.ca)
  • This study demonstrates the capacity of the spatial information content of panchromatic VHSR imagery to generate a series of crown metrics for discriminating among four common tree species of the Yukon Territory, a location with spatially and temporally limited forest monitoring practices. (gc.ca)
  • While the imagery shown is for a specific set of conditions, the simulations only vary spatial resolution parameters for that set of conditions. (i2rcorp.com)
  • Spatial resolution can affect a person's ability to extract useful information from imagery. (i2rcorp.com)
  • R 2 = 0.91) using cloud information from the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument instead of the OMI cloud product. (copernicus.org)
  • A trend of improving spatial resolution with increasing photon energy was confirmed, resulting in the realization of the presently optimum spatial resolution of 2.9(1) mm @1.3 MeV, thus reaching the design specifications of the Compton camera absorber. (degruyter.com)
  • Spatial resolution and photon collection. (lu.se)
  • This guideline discusses commonly used spatial resolution metrics illustrated with image simulations. (i2rcorp.com)
  • Energy system modelling frameworks, such TIMES from IEA-ETSAP are often applied with the assumption that the countries investigated already have a large grid infrastructure, and typically simplify spatial constraints associated with those that are unelectrified (IEA ETSAP, 2022). (researchsquare.com)
  • 2022) highlights the need for higher spatial granularity in ESOM to represent variable renewable energy resources better. (researchsquare.com)
  • Analysis of pollutant spatial variations and exposure disparities were recently published. (epa.gov)
  • At the same time with increasing decentralized supply options with variations of energy resources across the spatial dimension requires analysis with increased spatial resolution (Pfenninger et al. (researchsquare.com)
  • For countries with low electrification rates grid roll-out is often difficult and spatial characteristics are important with respect to electrification costs and technology choice. (researchsquare.com)
  • However, these studies concluded that the effect of RCM spatial resolution on discharge characteristics depend on the size of the catchment, the topography of the catchment and the hydrological model choice. (utwente.nl)
  • The influence of the RCM resolution on the total model performance is analysed for four sub-catchments in the Rhine catchments having different characteristics (sizes and topography), the Main (large and lowland), the West Alpine (large and mountainous), Kinzig (small and lowland) and Reuss Seedorf (small and mountainous). (utwente.nl)
  • However, spatial distortions in aerial photographs due to such factors as camera angle, lens characteristics, and relief displacement must be accounted for during analysis to prevent incorrect measurements of area, distance, and other spatial parameters. (noaa.gov)
  • The aim of this study was to investigate the spatial and temporal characteristics of COVID-19 transmission during the early stage of the outbreak in the US, with the goal of informing future responses to similar outbreaks. (cdc.gov)
  • County-level and higher data are aggregated from 10 kilometer square spatial resolution grids. (cdc.gov)
  • 2009) and used it to generate continuous spatial surfaces (grids) of daily PM2.5 for the whole conterminous U.S. for 2003-2011. (cdc.gov)
  • Spatial resolution determines the smallest discernable feature within an image (Holst, 2006). (i2rcorp.com)
  • Image resolution determines the clarity of the image. (sheppard-arts.com)
  • The size of the area viewed is determined by multiplying the IFOV by the distance from the ground to the sensor (C). This area on the ground is called the resolution cell and determines a sensor's maximum spatial resolution. (sheppard-arts.com)
  • The lowest spatial frequency channel determines brightness perception,Vision Res, 10 (47), 1282-1291. (pisavisionlab.org)
  • In this paper we present our most recent interaction position analysis in the absorbing scintillator, leading to a considerably improved value for the spatial resolution: systematic studies were performed as a function of the k-NN parameters and the PMT segmentation. (degruyter.com)
  • These results indicate that much of the variance in the operational products can be attributed to coarse resolution terrain pressure, albedo, and profile parameters implemented in the retrievals. (copernicus.org)
  • The purpose is to assist the remote sensing community - image users and buyers, as well as image providers and even sensor designers - by visually demonstrating how certain image specification parameters affect spatial resolution. (i2rcorp.com)
  • This document specifies methods for measuring the resolution and the spatial frequency response (SFR) of electronic still-picture cameras. (ansi.org)
  • For the purpose of target parameter estimation of the orthogonal frequency-division multiplexing (OFDM) radar, a high-resolution method of joint estimation on range and direction of arrival (DOA) based on OFDM array radar is proposed in this paper. (hindawi.com)
  • The potential of two-dimensional infrared (2D IR) spectroscopy for measuring conformational heterogeneity and dynamics with unprecedented spatial and temporal resolution has motivated extensive effort to develop amino acids with functional groups that have frequency-resolved absorptions to serve as probes of their protein microenvironments. (rsc.org)
  • Detailed, high-resolution fetal ultrasound is a safe, noninvasive imaging procedure that uses high frequency sound waves to assess fetal growth and development. (sheppard-arts.com)
  • This study investigates the role played by individual spatial scales in determining the apparent brightness of greyscale patterns. (pisavisionlab.org)
  • DMD can decompose the complex evolution of disease cases into linear combinations of simple spatial patterns or structures (modes) with time-dependent mode amplitudes (coefficients). (cdc.gov)
  • Geographical epidemiology, which is part of descriptive epidemiological studies, is the description of spatial patterns in health-related phenomena, such as diseases, injuries and disasters, and health-related behaviours, such as drug abuse [5]. (who.int)
  • SNR is typically improved by exploiting coherence in the RF channel data, for example summing channel data after applying focal delays in the delay-and-sum (DAS) beamformer, and summing channel data after applying a per-channel matched filter for the spatial matched filter beamformer[1]. (duke.edu)
  • At the smallest stripe width tested (1 mm = the minimal separable angle), which correlates with the size of prey typically consumed by these fish, the temporal resolution to the polarized grating increased to 42 Hz. (bgu.ac.il)
  • This paper will present the results of a study investigating the effect of input data resolution of soils, topography and land cover on the simulation of runoff from semiarid watersheds. (arizona.edu)
  • However, there are some constraints on increasing the RCM spatial resolution. (utwente.nl)
  • Since there is no coupling between range and angle parameter estimation for a narrow-band signal, a method which exploits the data of one snapshot to estimate the range and angle of the target by means of multiple signal classification (MUSIC) based on virtual two-dimensional spatial smoothing in range and angle dimensions is devised. (hindawi.com)
  • Inverse filter methods are capable of improving spatial resolution at the cost of SNR [2],[3], or can trade resolution for SNR using a regularization parameter, but in general are very computationally intensive due to the large RF data sets used. (duke.edu)
  • We propose a post-processing method operating on post-summed but pre-envelope detected beamformed image data that can improve the pixel SNR and spatial resolution of any beamformer with low computational cost. (duke.edu)
  • Spatial resolution can impact the usefulness of a data set for different applications. (i2rcorp.com)
  • Understanding spatial resolution can help optimize the amount of data needed, aid image quality assurance, and even drive camera design. (i2rcorp.com)
  • The main goal of this thesis is to examine the role that spatial scale and resolution of digital data has on hydrologic modeling using the Chipola River Basin in Florida as the case study. (fsu.edu)
  • This research contributes to literature by (1) providing a methodology for drainage density evaluations, (2) providing technical aspects of this research, (3) bridging a literature gap on the use of SRTM data in this type of analysis, (4) providing readers with the implications of spatial scale and spatial resolution on hydrological modeling, and (5) providing a well-documented case study for the Chipola River Basin. (fsu.edu)
  • Increasingly, GIS-based applications are being developed that automate the parameterization process of a hydrologic model that allow users to acquire spatial data from an array of sources, delineate and parameterize a watershed, and execute a simulation through a few clicks. (arizona.edu)
  • Spatial data for a given model input may be available at different resolutions, with each resolution potentially yielding a different model result. (arizona.edu)
  • WGEW has an extensive archive of spatial data that was used in this study. (arizona.edu)
  • First, we assessed the relationship between maximum daily humidex and Washington State Fund workers' compensation injuries in outdoor construction workers from 2000-2012 using a case-crossover design and high-resolution meteorological data. (cdc.gov)
  • The papers cover a wide range of topics from infectious to noninfectious diseases, in developed and developing countries, but focus mostly on the use of technologies (e.g., genomics, spatial analysis, big data) in public health practice. (cdc.gov)
  • However, a revival of interest has accompanied major advances in the geographical sciences and technologies such as geographical epidemiology, spatial data analysis, geographical information systems (GIS) and global positioning systems (GPS), that make it possible for public health researchers to more easily investigate their spatial data [2] and consequently to understand the role of "place" in community health in a scientific manner [3]. (who.int)
  • Every year during the rainy season, water-induced soil erosion poses serious spatial-environmental problems, causing heavy damage to agricultural lands, sedimentation in reservoirs, and water quality problems in nearby surface water bodies, from the plains to the mountain areas in Nepal. (scirp.org)
  • The study examines the possibility of advanced mapping of soil erosion-prone areas using a high spatial resolution image of QuickBird satellite and medium spatial resolution of Landsat satellite. (scirp.org)
  • The effect on simulation results from two soil resolutions (SURRGO and STATSGO) and five digital elevation models (2.5m-SAR, 10m-SAR, 10m-USGS, 30m-USGS, and 90m-USGS was assessed for the four watershed scales. (arizona.edu)
  • In this paper, we develop methods in an open-source computational workflow with high spatial and medium temporal resolution in OSeMOSYS. (researchsquare.com)
  • Increasing the spatial resolution in energy systems optimization models often comes with a computational cost which can be motivated in an heterogenous system (Aryanpur et al. (researchsquare.com)
  • First, this process is time consuming and second, a higher resolution demands significant computational resources. (utwente.nl)
  • Elevational (azimuthal) resolution represents the extent to which an ultrasound system is able to resolve objects within an axis perpendicular to the plane formed by the axial and lateral dimensions. (sheppard-arts.com)
  • A higher resolution improves the lands surface representation and the possibility to simulate important small-scale precipitation. (utwente.nl)
  • Higher frequencies will improve the axial resolution. (sheppard-arts.com)
  • A shorter spatial pulse length results in higher axial resolution. (sheppard-arts.com)
  • Images having higher spatial resolution are composed with a greater number of pixels than those of lower spatial resolution. (sheppard-arts.com)
  • Compared to conventional EEG, EGI's High Density EEG (HD EEG) systems provide greater coverage and have higher spatial resolution when detecting the electrical activity of the brain. (egi.com)
  • The first part of this article discusses both hardware and image quality considerations for higher resolution functional imaging. (openneuroimagingjournal.com)
  • Higher spatial resolutions have improved the radiographic diagnosis of simulated ERR in multi-rooted teeth and this should be considered when performing digital radiographs. (bvsalud.org)
  • Examine the spatial representativeness of the existing air pollution monitoring network in Allegheny County using distributed monitoring and both statistical and chemical transport (PMCAMx) modeling. (epa.gov)
  • Home » Resources » High-resolution, high-throughput spatial transcriptomics of. (nanostring.com)
  • The proposed method is capable of joint estimating the range and DOA of the target in a high resolution under a single snapshot circumstance. (hindawi.com)
  • In this paper, aiming at target parameter estimation in the OFDM array system, the characteristic of received signal is analyzed and a high resolution method of joint estimation on the range and DOA of the target in OFDM array radar is proposed. (hindawi.com)
  • The suggested high resolution system can improve the operational forecast especially when convective core is below of 3 km or less over the surface. (confex.com)
  • Spatial and temporal distribution of hailstorms in the Alpine region: a long-term, high resolution, radar-based analysis. (admin.ch)
  • High-resolution temporal and spatial study of the benthic biology and geochemistry of a northeastern Atlantic abyssal locality (BENGAL). (soton.ac.uk)
  • We compare our NO 2 product, the Berkeley High-Resolution (BEHR) product, with operational retrievals and find that the operational retrievals are biased high (30 %) over remote areas and biased low (8 %) over urban regions. (copernicus.org)
  • What is high resolution ultrasound? (sheppard-arts.com)
  • Since 2010 we studied graphene (Gr) extensively mainly with high resolution X-ray photoelectron spectroscopy (HRXPS) and scanning tunneling microscopy (STM). (lu.se)
  • This is made possible via the development of high-luminance and high-resolution display monitors combined with high-performance computers coupled with the development of image plates that are coated with photostimulable phosphors that capture "reinterpreted" x-rays. (medscape.com)
  • We have an imaging lab with three different systems: µPET/CT, µSPECT/CT, Ultra-high resolution µCT. (lu.se)
  • The conformational heterogeneity and dynamics of protein side chains contribute to function, but investigating exactly how is hindered by experimental challenges arising from the fast timescales involved and the spatial heterogeneity of protein structures. (rsc.org)
  • Axial resolution is the ability to see the two structures that are side by side as separate and distinct when parallel to the beam. (sheppard-arts.com)
  • In physics and geosciences, the term spatial resolution refers to distance between independent measurements, or the physical dimension that represents a pixel of the image. (wikipedia.org)
  • In terms of digital images, spatial resolution refers to the number of pixels utilized in construction of the image. (sheppard-arts.com)
  • At the application level, the researched showed that spatial resolution does play a role in how hydrologic features are modeled and instituted a well-documented case study by using the Chipola River Basin. (fsu.edu)
  • Human-environment interaction is defined as how the human race interacts with the environment it is surrounded by and spatial analysis is defined as the analysis of geographical entities with spatial scale. (fsu.edu)
  • The core goal of the project is the development of a harmonized and transparent approach to regionalize the electricity and gas demand with high temporal resolution. (ffe.de)
  • The spatial resolution of approximately 40x40km cells leads to 591 demand cells split between electrified and un-electrified. (researchsquare.com)
  • Socio-economic aspects, such as population demographics and income influence the spatial pattern of demand. (researchsquare.com)
  • This Is a temporal approach for contention resolution, which aims to separate transmissions from different nodes In time to achieve successful transmissions. (illinois.edu)
  • We explore an alternative approach for wireless networks-named "spatial backoff" - that adapts the "space" occupied by the transmissions. (illinois.edu)
  • For analysis and visualization of the user's interaction with the environment, 528 buildings of the city were modeled in 2.5D by using an airborne LIDAR scan, Google Earth, and a spatial database. (dfki.de)
  • Heat exposure was compared across three spatial resolutions (regional, area, and personal). (cdc.gov)
  • In Work Package 5 (FfE München) a database containing the results of the regionalization and temporal resolution analysis will be developed. (ffe.de)
  • These are human-environment interaction and spatial analysis. (fsu.edu)
  • Owing to its high-spatial resolution and 3D tomography, CMR provides superior myocardial border definition and volumetric analysis, accurate determination of regional wall thickness and myocardial mass, and sensitive detection of WMA. (medscape.com)
  • inproceedings{pub7625, author = { Moniri, Mehdi and Müller, Christian }, title = {Multimodal reference resolution for mobile spatial interaction in urban environments}, booktitle = {Proceedings of the 4th International Conference on Automotive User Interfaces and Interactive Vehicular Applications. (dfki.de)
  • Spatial resolution of images is enhanced by short spatial pulse length and focusing. (sheppard-arts.com)
  • An ultrasound system with a shorter pulse repetition period (PRP) will have a better temporal resolution than a system with longer PRP. (sheppard-arts.com)
  • What is spatial pulse length ultrasound? (sheppard-arts.com)
  • Spatial pulse length in ultrasound imaging describes the length of time that an ultrasound pulse occupies in space. (sheppard-arts.com)
  • Finally, practical resolution limitations and pulse sequence options for studies in human subjects are considered. (openneuroimagingjournal.com)
  • Objective To evaluate the pixel intensity and to compare it with different spatial resolutions, using an aluminum step-wedge. (bvsalud.org)
  • It was also observed that there were no significant differences in pixel intensity value measured on step-wedges 2 (3.3 mmEq/Al), 3 (3.6 mmEq/Al), 4 (3.9 mmEq/Al) and on the bone chips, between spatial resolutions of 150 and 300 dpi. (bvsalud.org)
  • Conclusion Small differences in spatial resolution did not interfere with the evaluation of pixel intensity. (bvsalud.org)
  • The effect of increasing RCM spatial resolution on the simulated precipitation and temperature has often been studied. (utwente.nl)
  • Image resolution Ground sample distance Level of detail Resel Thomas, C. (wikipedia.org)
  • The guideline provides a high-level tutorial describing how spatial resolution is specified, as well as a catalog of images so the user can relate these specifications to image products. (i2rcorp.com)
  • Final image product resolution depends not only on a camera's properties, but also on how an image is acquired and what image processing algorithms are applied. (i2rcorp.com)
  • Temporal resolution of a two-dimensional image is improved when frame rate is high. (sheppard-arts.com)
  • What is image resolution in ultrasound? (sheppard-arts.com)
  • Spatial resolution can determine the quality of an image and describe how detailed an object can be represented by the image. (sheppard-arts.com)
  • One use of this resultant increase in the contrast to noise ratio (CNR) for functional MRI studies at high field is increased image resolution. (openneuroimagingjournal.com)
  • Journalism Drone Development: aerial photo mosiacs, and what's the spatial resolution on this drone, anyway? (mentalmunition.com)
  • During orthorectification, digital scans of aerial photos are subjected to algorithms that eliminate each source of spatial distortion. (noaa.gov)
  • Most decentralized supply options, such as solar and wind, are intermittent technologies which requires increased temporal resolution to understand the implications of it (Pfenninger et al. (researchsquare.com)
  • Implications of Spatial Resolution on Hydrological Network Modeling: A Case Study in the Chipola River Basin, Florida. (fsu.edu)
  • Therefore, it is important to study the balance between the effect of increasing the resolution on the model output and the investments needed to increase the resolution. (utwente.nl)
  • In this study, avenanthramides production was investigated by techniques that provide high spatial and temporal resolution in order to clarify the process of phytoalexin production at the cellular level. (elsevierpure.com)
  • The aim of this study was to evaluate the influence of spatial resolution (line pairs per millimetre - lp/mm) on the diagnosis of simulated external root resorption (ERR) in multi-rooted teeth by using digital periapical radiography . (bvsalud.org)
  • Spatial Audio adds "multidimensional sound and clarity", making the audio sound much more immersive. (whathifi.com)
  • Several articles will be submitted for publication, including the spatial modeling results and the commuter choice results. (epa.gov)
  • Our results suggest that spatial backoff can lead to a substantial gain In channel utilization. (illinois.edu)
  • Until recently, modelling energy access in countries with a low electrification rate was conducted at low spatial (e.g. national) and/or temporal resolution (e.g. annual time slices or 'overnight' electrification). (researchsquare.com)
  • Increasing the spatial resolution of energy modelling could allow investigation across three key dimensions. (researchsquare.com)