Term Description
raster object A regular grid that represents a defined space. Each cell in a raster object is assigned an attribute value to represent a data model of an entity. A raster object can be a satellite image, a digital elevation model (DEM), or a picture.
cell or pixel The unit of measure of a raster object. A cell is also called a pixel. Each cell can have different data types, such as BYTE, SHORT, INTEGER, or DOUBLE.
band The measure of a single characteristic of a raster object. A band is represented by a single matrix of cell values. A raster object can have one or more bands.
chunk The portion of a raster object. The size of a chunk can be customized, such as 256 × 256 × 3.
pyramid The downsampled version of a raster object. A pyramid can contain one or more downsampled layers. Consecutive pyramid layers are downsampled at a scale of 2:1. Layer 0 stores the raw data.
pyramid level The layer in a pyramid.
mosaic The operation to integrate one or more raster objects into an existing raster dataset.
interleaving The arrangement of pixels in a raster object. The interleaving types include band sequential (BSQ), band interleaved by pixel (BIP), and band interleaved by line (BIL).
world space The geographic coordinates of a raster object.
raster space The pixel coordinates of a raster object. The top-left corner of the raster object is used as the starting point.
metadata The metadata of a raster object, including the spatial range, projection type, and pixel type. The metadata of the remote sensing platform is not included.