Available with Advanced license.
If you have imagery from a camera system with metadata that provides accurate interior and exterior orientation, you can use this workflow. The Ortho Mapping Workspace wizard allows you to create an ortho mapping workspace for your aerial-digital imagery, such as Applanix, ISAT, and Match-AT image data. For other aerial imagery from generic digital camera systems such as UltraCam, you will need to prepare a frame table that defines the exterior orientations of the images and a camera table that defines the internal orientation information of the camera. The two tables can be in a .csv format or as ArcGIS supported tables; see Frames table schema and Cameras table schema for more information.
Create an ortho mapping workspace using frame camera imagery
- On the Imagery tab, click New Workspace.
- On the Workspace Configuration page, type a name for your workspace.
- Use the Workspace Type drop-down arrow to choose Aerial - Digital.
- Click Next.
- On the Image Collection page, choose Generic Frame Camera as the Sensor Type .
- If you have Match-AT, ISAT, or Applanix imagery, choose the corresponding Sensor Type .
- Specify the Frame Table. This table enables specification of parameters that control exterior orientation (EO).
- The Spatial Reference parameter will be automatically set by the spatial reference of the perspective points are defined in the Frame Table. If the Spatial Reference parameter is not specified, click the Spatial Reference icon to set the spatial reference to be the same coordinate system as the perspective points.
- Specify the Cameras Table. This is the file that contains the camera configuration information.
- Optionally, click the Data Loader Options tab to further refine your output workspace.
- Creating an ortho mapping workspace from aerial imagery needs
elevation data. By default, the wizard provides an elevation service with a 90 meter resolution. Choose your Elevation Source.
- Average Elevation from DEM—Use the average elevation from the specified DEM.
- Constant Elevation—Use the Constant Elevation value specified.
- DEM—Use the DEM values for each pixel. You can also specify Z Factor and Z Offset values.
- Check the Estimate Statistics check box to estimate the statistics for your output workspace.
- Edit the Band Combination parameters, if you want to reorder the band combination from the default order.
- Choose either of the Pre-processing options to Calculate Statistics or Build Pyramids on your data before your create your workspace.
- Creating an ortho mapping workspace from aerial imagery needs elevation data. By default, the wizard provides an elevation service with a 90 meter resolution. Choose your Elevation Source.
- Click Finish to create the workspace.
When the ortho mapping workspace is created, the image collection will be loaded in the workspace and displayed on the map. You are now ready to perform adjustments and generate ortho products.