Overview of Mosaic Dataset

Nowadays, the acquisition of images has become more and more convenient and efficient, and the demand for the management and service release of massive images has become more and more common. In order to complete this work more conveniently and efficiently, provided.

Mosaic Dataset is managed by metadata + original Image Files. When adding Image Data to Mosaic Dataset, only the path, contour, resolution and other meta-information of Image Files will be recorded in Mosaic Dataset, and the required Image Files will be loaded according to the meta-information when using. Compared with the traditional warehousing management mode, this mode greatly improves the speed of warehousing and reduces the occupation of disks.

Mosaic Dataset features:

  • Mosaic Dataset is used to manage data in raster format. Images in different formats (*.tif, *.tiff, *.img, *.ecw, *.pix, *.sid) can be added to the same Mosaic Dataset, and a large number of images can be added at a time.
  • Images added to Mosaic Dataset may have different coordinate systems. For example, in the global image Mosaic Dataset shown below, the coordinate system of the original image file is UTM zonal projection based on WGS1984. Here, you need to set the Projection Settings as their unified GCSWGS1984. Therefore, you need to specify its coordinate system as WGS1984Geographic Coordinate System during Build Mosaic Dataset.
  • The use of Manage Mosaic Dataset mass images not only has high image storage efficiency, but also occupies a small disk space. Test Show Results: Global DEM Data with a resolution of 30 meters, with a 22667 of 0.98 TB, are all imported into UDBDatasource at one time. Took 14 minutes; after import, UDB file size is 16 MB, udd file size is 22 MB
    Figure: Using Manage Mosaic Dataset Global Image Data
  • The use of Manage Mosaic Dataset mass images not only has high image storage efficiency, but also occupies a small disk space. Test Show Results: Global DEM Data with a resolution of 30 meters, with a 22667 of 0.98 TB, are all imported into UDBDatasource at one time. Took 14 minutes; after import, UDB file size is 16 MB, udd file size is 22 MB
    Figure: Using Manage Mosaic Dataset Global DGM Data

Related topics

Manage Mosaic Data set

Mosaic Dataset Display

Build Mosaic Dataset