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 ?
This has improved spatial resolution to the world finest level of less than 10?
Thanks to the new magnetometer, the MIT-SML researchers can conduct corrosion studies with a 20-fold improvement in spatial resolution.
Contract notice: Airborne survey, 3d modeling, aerial orthophotography with very high spatial resolution, digital terrain model correlated to geographical areas of Occitania.
Implemented as electron-excited x-ray spectrometry performed in the scanning electron microscope (SEM), EPMA achieves spatial resolution both laterally and in-depth, typically at the micrometer scale in bulk specimens, and, under special circumstances, spatial resolution can be reduced to the range of nanometers.
Scanners on the newer GOES provide more data than older instruments because they have better spatial resolution and collect information in more spectral bands.
The method's inventor Richard Zare, graduate student Renato Zenobi, and post-doctoral associate Jean-Michel Philippoz used the method to make the first spatial resolution study of selected organic molecules in the Allende meteorite.
The objective of this activity is to trade-off antenna architecture design a radiometer antenna with high spatial resolution to support coastal zone altimetry measurements.
The L[alpha] line offers the advantage of higher spatial resolution obtainable with the low accelerating voltage permitted by the lower excitation energy, but is inappropriate for quantitative analysis for Z < 30, owing to uncertainties in the absorption correction.
Although this achievement falls short of detecting individual protons or nuclei in molecules, it represents a significant improvement in sensitivity and spatial resolution over that of conventional magnetic resonance imaging.
In addition, the system offers z-Ultra High Resolution, enabling the highest available spatial resolution of 0.
Preliminary measurements indicate that the microhotplate structure may be a useful infrared radiation calibration artifact for very small heat sources where the accuracy of the temperature measurement is affected by spatial resolution.
Higher spatial resolution at 3T and short acquisition times is the key to faster scanning and increased diagnostic accuracy.

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