MXR-DS-urchn 07/20
info@maxar.com maxar.com
URCHN provides urban change statistics in two
primary views: an asset view and a map view. In
the asset view, users can compare urban change
across plus metro areas with aggregate PCM and
OSM editing statistics. In the map view, users can
browse PCM and OSM editing heat maps, then
drill into more specific statistical relationships
to determine if PCM data correlates with OSM
editing behavior. In cases where PCM change does
not correlate with updates to the map, users will
have a better idea where the map needs to be
updated. Further users might find cases where
map editing behavior is occurring in areas where
no spectral change has been detected. This
might indicate possible areas where either the
image was out of date, or perhaps more likely is
detecting omission errors where the map hasn't
been updated in years.
technical approach
Above URCHN is highlighting a region where multispectral change has been detected in an area where
two new buildings have been created, but the OSM editing behavior has not caught up.
Above the attributes for the PCM change detection polygon are displayed. The user can view the date of
detection and the area of the polygon.
Above URCHN is highlighting a region where multispectral change has been detected a surface type
material change for a bridge (concrete to asphalt) where the OSM attribution has not caught up.
