HouseDiff is an automatic change detection engine that assists local governments in maintaining more accurate, up-to-date building data. HouseDiff combines existing GIS building and parcel data with recently acquired imagery, resulting in a new GIS file with information on which buildings have changed. This approach accelerates the data collection process and increases the efficiency of manual on-site inspections for tax assessor offices.

Maintain More Accurate Building Data
HouseDiff compares existing vector footprints to vector data generated from recent aerial/satellite imagery. Changes to building structure, area, or position are automatically flagged for verification and analysis.

Don't Have Existing Building Footprints?
While HouseDiff was designed as a change detection tool, HSGT can also combine its capabilities with other services to assist agencies in creating a new building footprint layer.

 

For services in North America (US, Canada and Mexico), please contact our master distributor Pictometry.

For services elsewhere, please contact Hitachi Software Engineering, Co., Ltd.