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Published byEustace Powell Modified over 9 years ago
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Stereo Analyst Extension ERDAS product Extension for ArcGIS Desktop View stereo image pairs 3D feature collection
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Stereo Analyst Extension Project Geology request – Historic aerial photography of Sisk Dam construction site – Looking for explanation of structure feature underneath dam Aerial photography archive – Retrieved film with 60% forward overlap – Scanned to digital format
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Stereo Analyst Extension
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Image files must be “oriented” but not orthorectified – Process done in a photogrammetric software application, e.g. LPS, Socet Set, ImageStation Extension used to: – Collect features in 3D for better horizontal accuracy – Collect mass points for creating elevation models
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Stereo Analyst Extension
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ERDAS pricing – License ±<$4,000 – Maintenance ±<$800 annually Stereo accessories – Was ± $3,600 per unit – Now ± $600 per unit High end graphics card – ± $4,000
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