Dual Photography

The concept of “dual photography”
Computational Photography(Rays to Pixels)

Novel Illumination
Photocell capture the light

Projector(controllable light source), modulator(controllable aperture)

Novel Camera
modulator(controllable aperture)

Reflective properties of ray of light
light source, light sensor
Reflection of light depends on the kind of surface: spectacular(mirror), diffuse(matte)

projector pattern – camera image