Keystone Aerial Surveys Purchases SimActive Photogrammetry Software

December 05, 2011 -- SimActive Inc., a world-leading developer of photogrammetry software, is pleased to announce that Keystone Aerial Surveys, Inc. has purchased its Correlator3D™ product for deriving accurate digital elevation models (DEM).

With Keystone’s growing production requirements, it was necessary to use robust photogrammetry software able to handle large statewide and multiple county projects. SimActive’s Correlator3D™ was perfectly suited for these requirements offering ease-of-use combined with high precision and matchless productivity.

Montreal, Canada, December 6, 2011 – “Correlator3D’s beneficial impact will be felt immediately, vastly improving production by accelerating project schedules through GPU enabled autocorrelation and powerful DEM editing tools,” said Dr. Philippe Simard, President of SimActive. “Keystone’s growth and tradition of high quality geospatial products continue with this latest state-of-the-art software acquisition”.

For a live demonstration of Correlator3D™ at the International LiDAR Mapping Forum (January 23-25, Denver, Colorado), please send an email to Email Contact or visit booth 305.

About Keystone Aerial Surveys
Keystone Aerial Surveys, Inc. specializes in providing quality aerial surveys throughout North America, including Mexico and Canada.  With offices in Philadelphia, PA, Tyler, TX, Benson, AZ and Los Angeles, CA, Keystone operates eighteen aircraft, thirteen metric film camera systems, four large format digital sensors and one LiDAR system.  Keystone combines over 49 years of aerial survey knowledge and the experience gained through managing and acquiring over 350 individual large-scale digital projects for various clients throughout the United States.  For more information, visit

About SimActive
SimActive is the developer of Correlator3D™ software, a patented end-to-end photogrammetry solution for the generation of high-quality geospatial data from satellite and aerial imagery.  Correlator3D™ produces precise digital surface models (DSM), digital terrain models (DTM), orthomosaics and vectorized 3D features.  Powered by GPU technology, Correlator3D™ accelerates project completion timeframe.  SimActive has been selling Correlator3D™ to leading mapping firms and government organizations around the world, offering cutting-edge photogrammetry software backed by exceptional customer support.  For more information, visit

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