spatial resolution


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Related to spatial resolution: Contrast resolution

spatial resolution

See resolution.

spatial resolution

(Data West Research Agency definition: see GIS glossary.) A measure of the accuracy or detail of a graphic display, expressed as dots per inch, pixels per line, lines per millimeter, etc. It is a measure of how fine an image is, usually expressed in dots per inch (dpi). The minimum difference or distance between two independently measured or computed values or objects that can be distinguished by the measurement or analytical method, or sensor being considered or used. It provides a limit to precision and accuracy. Often called spatial resolution but also applies to spectral and temporal aspects of remote sensing imaging systems.

Resolution is the accuracy at which a given map scale can depict the location and shape of map features; the larger the map scale, the higher the possible resolution. As map scale decreases, resolution diminishes and feature boundaries must be smoothed, simplified, or not shown at all. It is the size of the smallest feature that can be represented in a surface. For example, small areas may have to be represented as points.
References in periodicals archive ?
NDVI products not only cover a wider range, but also have a higher spatial resolution than do precipitation data.
The results show that spatial resolution in CT images can be uniform across the FOV without using additional equipment.
Spatial resolution of an images is crucial for determining the size and extent of detectable landslides and are therefore considered critical for developing an accurate landslide inventory (Shafique et al., 2016).
For panels A and B, the low spatial coherence of the light source leads to reconstructed images where the overall shape of the simple is visible, but few details of the internal structure are seen, namely, the spatial resolution of the microscope has been reduced due to the widening of the point spread function of it (Gopinathan et al., 2008).
The acquisitions were performed at a spatial resolution of 1m, a digital spatial step of 20 cm and a number of averages equal to 2048, leading to an overall acquisition time of ~ 70 s.
Also, FIRST can improve high-contrast spatial resolution by up to 129% as compared to filtered back projection for body imaging while reducing radiation dose.
Spatial resolution of x-ray microanalysis in the (S) TEM is limited by the initial electron probe size and by subsequent beam broadening in the foil.
Microwave measurements have the advantage of being largely unaffected by cloud cover but the spatial resolution in passive sensors is courser than the optical sensors.
The need is for soil information that covers all of the Australian biomes with a set of soil attributes that represent the local condition of soil at a fine spatial resolution. Such information will be crucial as we move to better understand the vital role of soil in ecosystems and to address national challenges in agriculture, the environment and the economy.
The classification of hyperspectral data using both spatial and spectral information has been a quickly developing topic of research recently, and the availability of hyperspectral data with high spatial resolution has been quite important for classification techniques.
JEOL USA's JSM-7200F Field Emission Scanning Electron Microscope features an ultrahigh spatial resolution of 1.6 nm at 1.0 kV and high probe current of 300 nA.
Shimadzu Scientific Instruments' iMLayer matrix vapor automated sample treatment (matrix deposition) system provides a precise, high-resolution method for high spatial resolution imaging mass spectrometry.

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