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Stereo Analyst Extension

Stereo Analyst Extension. ERDAS product Extension for ArcGIS Desktop View stereo image pairs 3D feature collection. Stereo Analyst Extension. Project Geology request Historic aerial photography of Sisk Dam construction site Looking for explanation of structure feature underneath dam

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Stereo Analyst Extension

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  1. Stereo Analyst Extension • ERDAS product • Extension for ArcGIS Desktop • View stereo image pairs • 3D feature collection

  2. 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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  4. Stereo Analyst Extension

  5. Stereo Analyst Extension • 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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  8. Stereo Analyst Extension • 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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