interpreters can read an aerial photograph like a book, and they employ
many skills to help them analyze the terrain they are viewing.
One method that aerial
photo interpreters use to view large regions in one glance is called mosaicking.
Several photos of adjacent areas are pieced together like a jigsaw puzzle
to present the "big picture".
The Earth in Stereo
Natural and man-made
features can be seen in three dimensions with the aid of a stereoscope and
two overlapping scenes. With the addition of depth, aerial photos can provide
the interpreter with more information on geologic boundaries, terrain characteristics,
relative heights, and regional topography.
If you have a pair of
red/blue glasses you can simulate the 3-D effect of using a stereoscope
by viewing these anaglyphs made from aerial photos.