1. Computational Photography
CS 498
Ben Bower
Computational Photography

2. What is computational photography? What is it used for?
Computational imaging techniques
High Dynamic Range Imaging
Light fields
Light Field Rendering
Synthetic Aperture Photography
Relighting Through Computation

3. High Dynamic Range (HDR) Imaging
Increasing the color contrast and range
HDR imaging for
static scenes
non-static scenes

6. Light Fields
A function of the amount of light traveling in every direction through every point in space.
Light Field Rendering
Synthetic Aperture Photography

7. Light Fields
Light Field Rendering

8. Light Fields Synthetic Aperture Photography
First observed by Leonardo da Vinci
This idea can be used in photography with an array of cameras

10. Relighting Through Computation
Changing the lighting of an image
Intensity
Color
Origin of light

11. Relighting Through Computation
Light is additive
This concept is used to change the intensity and origin of the light
Color
Scaling the color channels of an image

12. Light Stage

14. Summing it up... Computational photography is still new
It has many applications and will continue to grow as technology increases

15. questions?