Reading Announcements Image formation Pinhole

Reading

Announcements

Image formation

Pinhole camera

Camera Obscura

Camera Obscura

Home-made pinhole camera

Pinhole photography

Shrinking the aperture

Shrinking the aperture

Adding a lens

Lenses

Thin lenses

Depth of Field

Depth of Field

The eye

Before Film

Film camera

Silicon Image Detector

Digital camera

Color =

Color perception

Prokudin-Gorskii (early 1900’s)

Prokudin-Gorskii (early 1990’s)

Color sensing in camera: Prism

Color filter array

Bayer’s pattern

Color filter array

Color images

Dynamic range

Light response is nonlinear

Visual dynamic range

Dynamic range

High dynamic range imaging

Historical context

Questions?

Projection

Projection

Müller-Lyer Illusion

Modeling projection

Modeling projection

Modeling projection homogeneous image coordinates homogeneous scene coordinates

Perspective Projection divide by third coordinate

Perspective Projection

Orthographic projection

Orthographic projection

Perspective projection

Perspective distortion

Perspective distortion

Perspective distortion: People

Distortion

Correcting radial distortion

Distortion

Modeling distortion

Other types of projection

360 degree field of view…

Tilt-shift

Dimensionality Reduction Machine (3 D to 2 D)

Projection properties

Projection properties

Camera parameters

Camera parameters

Camera parameters

Extrinsics

Extrinsics

Extrinsics

Extrinsics

Perspective projection in general,

Focal length

Projection matrix

Projection matrix

Questions?