With high oblique photographs, you cannot see what is known as "dead ground" (parts of the area that are behind things like buildings and hills) And with low oblique photographs, you cannot see the horizon properly.
High oblique includes the horizon and low does not.
Be black or Oblique
Martin Boisvenue has written: 'Oblique videography and photography for environmental monitoring'
is the type of photography which taken when the photographer is found on the mountain, hills,building or air craft and it show the horizon onthe backward.
Control over the environment (mostly lighting).
internal oblique opposes the external oblique
Since 2007 the FAA has restricted remote controlled aerial photography. Even tethered low altitude photography is affected. See Remote Control Aerial Photography Association www.rcapa.net and rc-zeppelin.com
Oblique lines:
The artist chose to paint the scene from an oblique angle, capturing the unique perspective of the city skyline.
Oblique means at an angle.
Slanting. A slash (/) is oblique