Extract Features in ArcGIS, Easily and Accurately Stereo Analyst for ArcGIS enables you to create and maintain comprehensive databases of feature data using stereo visualization within the ArcGIS environment. Stereo visualization lets you distinguish the features in your imagery faster and more easily, and increases the accuracy of the features that you collect.
Screenshots
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![Terrain file viewed as contours is ready for editing](/Libraries/Screenshots/Terrain_file_viewed_as_contours_is_ready_for_editing.sflb.ashx?width=440&proportional=true&decreaseOnly=false"> "Terrain file viewed as contours is ready for editing")
Terrain file viewed as contours is ready for editing
This terrain file can be viewed in many ways, and in this example, it is shown as contours. Advanced terrain editing tools can be used to make changes to the elevation model loaded in this Terrain Editor for ArcGIS environment.
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![Road feature being collected in a stereo environment inside Stereo Analyst for ArcGIS](/Libraries/Screenshots/Road_feature_being_collected_in_a_stereo_environment_inside_Stereo_Analyst_for_ArcGIS.sflb.ashx?width=440&proportional=true&decreaseOnly=false"> "Road feature being collected in a stereo environment inside Stereo Analyst for ArcGIS")
Road feature being collected in a stereo environment inside Stereo Analyst for ArcGIS
A polyline feature of the road alongside of the mountain is being collected using the simple to use stereo interface of Stereo Analyst for ArcGIS.
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![Ready for feature collection in Stereo Analyst for ArcGIS](/Libraries/Screenshots/Ready_for_feature_collection_in_Stereo_Analyst_for_ArcGIS.sflb.ashx?width=440&proportional=true&decreaseOnly=false"> "Ready for feature collection in Stereo Analyst for ArcGIS")
Ready for feature collection in Stereo Analyst for ArcGIS
This image shows how a project with 4 images is loaded into the stereo viewer and ready for feature collection directly into a shape or multipatch file.
Do-It-Yourself Photogrammetry
ERDAS Extensions for ArcGIS are simple, affordable products to generate feature layers based on imagery. Instead of outsourcing the work or struggling with a larger application that includes functionality you do not need, you can simply add ERDAS Extensions for ArcGIS to the software you already use. You can save money and have more control over the final product by completing the work yourself.
Less Training and Ramp-Up Time
Stereo Analyst for ArcGIS integrates seamlessly with ArcGIS to give you stereo visualization in addition to the feature collection and vector-editing tools you are already using. Because it works inside the ArcGIS interface you already know, it does not require a lot of training or ramp-up time.
Increased Accuracy
Stereo collection of feature data is more spatially accurate than digitizing features from a two-dimensional orthorectified image. For example, in 2D imagery it may be difficult to distinguish and overpass from an intersection, and some objects may appear to lean and overlap other features. Stereo visualization allows you to see these features in the imagery just as you would see them in real life - in 3D. Stereo Analyst for ArcGIS also lets you collect those features in three dimensions by capturing x, y, and z values.
