GIS 205: Aerial Photography

Pigeon Photography Uses

Message carriers and photographers

Shows route of pigeon so explains timing

Pigeon Photography Cons

Easy to shoot down

inefficient

Aerial photography

Became so popular as plane and camera tech got better

"Airmans vision" gives clearer perspective abt the world

Aerial photography for mapping and helping develop postwar suburbs

Aerial photography helps for bombing in wars then spying in the cold war

Examples of the airman's vision (Remember any one incident)

"Airmans vision" gives clearer perspective abt the world

Reconnoissance of Aushwitz -Archibald MacLeish

Drones/Uses

Unmanned aircraft systems

Military applications

Civilian uses:

Precision agriculture

Environmental monitoring:Dune restoration, Population counts

Events: weddings, graduations, etc

Vertical Angle

straight above

High oblique angle

tilted, horizon visible, 60+ °

Low oblique angle

tilted, horizon not visible, 40-50°

Panchromatic

Black and white image

True color

images appear as they would in real life

False color

different bands of light being used to create color images (ex infrared)

Size

length, width, and height of objects on the ground, relative size of objects that are known

shape

the distinct form of an object in a photo

Shadow

dark shape cast by an object by light source,

Gives info abt the height

Not always reliable bc varies by time of day

Tone

differences in relative brightness of a color

texture

differences in the repeated shading or colors in an image

course vs smooth

pattern

physical arrangement of objects in an image

How ordered or disordered things are

Cars in parking lot vs junkyard

Site & Association:

the location or characteristics of an item

(Ex: Football field/ stadium)