The remote sensing processes described in this chapter are systems that measure energy reflection and turn it into images without interfering with what’s happening below them. For instance, when an aircraft flies overhead to take pictures or a satellite crosses more than 500 miles above your house, it collects its imagery and moves on. This data collection process doesn’t physically affect you or your property in the slightest, and all of this is done without your explicit permission and usually without your knowledge. If you can see your car in your driveway on Google Earth, then it just happened to be parked there when the airplane or satellite collected that image. Does this unobtrusive method of data collection affect your privacy? Is the acquisition of images via remote sensing an invasion of your personal space? In what ways could this use of geospatial technology intrude on someone’s life? Also, a lot of this kind of imagery is being acquired by private companies—is this more or less intrusive than a government agency doing the same thing?
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