LIDAR
stands for Light Detection And Ranging. This is an optical remote sensing
technology that can measure the distance to, or other properties of, a target
by illuminating the target with light, often using pulses from a laser. The
image above is an example of an LIDAR image used for urban modeling. In remote
sensing, false color images are common. They serve as a means for visualizing
data. The term "false color" refers to the fact that these images are
not photographs. Rather, they are digital images in which each image pixel
represents a data point that is colored according to its value. So, in LIDAR
elevation maps, each pixel represents a certain elevation and is colored on the
map accordingly to the color that corresponds to that particular elevation.
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