Hexagon Geospatial Supports Urban Change Detection Programs in New Mexico

Engineering Firm Bohannan Huston (BHI) Leverages Hexagon Geospatial Solutions for Modeling Point Clouds

28 May 2015

Hexagon Geospatial is pleased to announce that Bohannan Huston, Inc. (BHI), a provider of engineering, spatial data and mapping services, is using Hexagon Geospatial solutions to generate and analyze thousands of point clouds for urban change assessments in Bernalillo County, New Mexico.

From 2012 to 2014, the BHI Spatial Data Division implemented a countywide approach to generating produce pixel-resolution point clouds from digital stereo aerial imagery. Collected by a variety of different digital aerial camera systems, BHI used ImageStation ISAE-Extended to extract point clouds ranging between 80 and 150 million points per stereo model.  These were then assembled into seamless Digital Surface Models (DSM) using open source technologies.

By modeling change detection techniques, BHI was able to vectorize areas of change, which were then integrated into Hexagon Geospatial’s GeoMedia platform.  From there the vector change data supported and guided analysts who were collecting new buildings in the 2014 image base with a data driven, targeted, and high-fidelity geospatial data resource. 

BHI uses a number of Hexagon Geospatial’s solutions for supporting its spatial data services, which are provided to a number of public sector agencies, as well as research institutions, developers and geospatial data users.

“Hexagon’s large portfolio of software and solutions and their investment in geospatial technologies are a strategic advantage for our company,” said Dennis Sandin, Digital Mapping Principal and Senior Vice President, BHI. “We appreciate their investment in our success as we innovate within our geospatial and data-driven operational approaches.” 

BHI is planning future projects that explore similar integrations between SGM and LiDAR data.  In addition, BHI will be presenting at HxGN Live 2015 in a session titled, “Semi-Global Matching (SGM) for Wide-Area Urban Change Detection and Building Update Collection.”


Hexagon's Geospatial division is part of Hexagon,  a global leader in digital solutions that create Autonomous Connected Ecosystems (ACE), where data is connected seamlessly through the convergence of the physical world with the digital, and intelligence is built into all processes. Our division creates solutions that visualize location intelligence. From the desktop to the browser to the edge, we bridge the divide between the geospatial and the operational worlds.

Hexagon is a global leader in digital solutions that create Autonomous Connected Ecosystems (ACE). Hexagon (Nasdaq Stockholm: HEXA B) has approximately 20,000 employees in 50 countries and net sales of approximately 4.3bn USD. Learn more at hexagon.com and follow us @HexagonAB.



Jim Dobbs
Global VP of Marketing




ImageStation powers high volume photogrammetry and production mapping workflows.