GIS

A scanned file containing values of 1 or 0.

A raster data structure that stores cell values in a matrix by row and column.

Reduction of data volumes, especially for raster data.

A digital model with an array of uniformy spaced elevation data in raster format.

A digitized image prepared from an aerial photograph or other remotely sensed data, in which the displacement caused by camera tilt and terrain relief has been removed.

A scanned image of a USGS topographic map.

A propriety ESRI format for raster data.

A raster that contains cells of continuous values.

A raster that has been processed to align witha projected coordinate system.

A raster that contains cell values of integers.

An orbiting satellite that provides repeat images of the Earth's surface. Landsat 7 was launched in April 1999.

One type of data compression that allows the original image to be precisely reconstructed.

One type of data compression that can achieve high-compression ratios but cannot reconstruct fully the original image.

A raster data structure that divides a raster into hierarchy quadrants.

A data model that uses rows, columns, and cells to construct spatial features.

Conversion of vector data to raster data.

A raster data structure that records the cell values by row and by group. A run-length compressed (RLC) file.

A french satellite that provides repeat images of the Earth's surface. SPOT 5 was launched in May 2002.

Conversion of raster data to vector data.

A new image compression technique that treats an image as a wave and progressively decomposes the wave into simpler wavelets.