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Geometric transformation

GIS  Geometric Correction  Geometry
04/23/2014

Geometric Transformation
geometric transformation - [coordinate systems] The process of rectifying a raster dataset to map coordinates or converting a raster dataset from one coordinate system to another. [Category=Geospatial ] ...


Geometric Transformations
This function is concerned with the registering of a data layer to a common coordinate scheme. This usually involves registering selected data layers to a standard data layer already registered.

Geometric Transformations
Geometric transformations are used to assign ground coordinates to a map or data layer within the GIS or to adjust one data layer so it can be correctly overlayed on another of the same area.

geometric transformation (or rectification)
A process in which an image is stretched differentially so as to change its internal geometry is said to have undergone geometric transformation or rectification.

A geometric transformation that scales, rotates, or translates images or coordinates between any two Euclidean spaces. It is commonly used in GIS to transform maps between coordinate systems.

2.1 Common Geometric Transformations
3 Additional Features
4 Spatial ETL Uses
5 Spatial ETL - Origins and History
6 Spatial ETL and GIS
7 Spatial ETL and ETL
8 Spatial ETL tools
9 See also ...

To apply a geometric transformation to an original data set; more specifically, the interpolation method used to derive output pixel values based on input pixel values, taking into account the computed distortion.

The grouping of observations into control and check points is useful for estimating the relative accuracy of the geometric transformations.

This is an error measurement that most GIS report during geometric transformation of data sets. It is mathematically the spatial equivalent to the standard deviation.

[Euclidean geometry] A geometric transformation that scales, rotates, skews, and/or translates images or coordinates between any two Euclidean spaces. It is commonly used in GIS to transform maps between coordinate systems.

Much more functionality is accessible via Avenue, such as hydrological analysis and geometric transformations, just to name a few.

The image warp and registration function has added options to use either bi-linear or triangulation for more accurate image geometric transformation based on control point selection.

Geometric transformations are procedures used to ensure that each data layer precisely overlays the other data layers.

other years, there is apparently no land area column, but it appears that the inundated areas have been removed from each tract. It is possible to calculate the area for each polygon in ArcGIS. watch for a future web page on geometric transformations ...

See also: See also: Information, Transformation, Transform, Model, Software

GIS  Geometric Correction  Geometry
04/23/2014

 
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