Resolution Comparison

The following images illustrate the same location at three different resolutions to see the variance in detail. The more refined the resolution, the more detail you can see – but the higher the cost. The table indicates those features which can be readily identified and measured.

The key is to ensure you get the resolution that enables the capture of the smallest feature you require – but not to pay for more than you need if there is no benefit.

3-Inch GSD

Utility boxes
Reflective road markings
Parking meters
Golf course flags
Power lines
Communication lines

6-Inch GSD

Road centerlines
Fence posts
Bus shelters
Train tracks

12-Inch GSD

Communication towers
Road turning lane and pedestrian crossing markings
Road speed bumps
Park benches