This problem is defined by the airborne collection of spatial information that is related to approximately linear power-line feeder-type infrastructure.
Individuals passing through a collection area may also have particulates embedded on their clothing or bodies, which can become dislodged thereby becoming an airborne contaminant.
He's thinking about moths and butterflies, and how they radically change shape as they grow, from little wormy, caterpillar critters to airborne beauties.
Remote sensing applications are similar to graphics software, but they enable generating geographic information from satellite and airborne sensor data.