Introduction to ENVI Photogrammetry

The ENVI Photogrammetry Module requires a separate license; contact your sales representative for more information.

The ENVI Photogrammetry Module provides specialized tools to orthorectify images and create point clouds. All tools are supported on Windows 64-bit systems only. See the following topics:

Rigorous Orthorectification:

• Use the interactive Rigorous Orthorectification workflow to build highly accurate orthorectified images.

• See the Rigorous Orthorectification tutorial for a step-by-step demonstration of using the workflow.

Generate Point Clouds and DSM by Dense Image Matching:

• Create point clouds in LAS format from two or more images taken from different view points, while also creating a digital surface model (DSM) image.

• ENVI programmers can use the GeneratePointCloudsByDenseImageMatching task in an ENVI+IDL program.

• See the Generate Point Clouds and DSM tutorial for a step-by-step demonstration of using the tool.

RPC Orthorectification Using DSM from Dense Image Matching:

• Perform an a refined RPC orthorectification using a digital surface model (DSM) created from a dense image-matching algorithm.
• ENVI programmers can use the RPCOrthorectificationUsingDSMFromDenseImageMatching task in an ENVI+IDL program.