- projection model
- physical realization of a model
We discussed two projection models: perspective and orthographic projections
Perspective Projection:
- how you view the world
- can be demonstrated with a pinhole camera
- has relative distances of objects
- wide field of view
- short focal length (distance between pinhole and image)
Orthographic Projections:
- the pinhole is at "infinity"
- no perception of distance and objects appear side by side
- narrow field of view
- light travels in parallel lines
- long focal length
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