Stanford Tech Report CTSR 2005-02
Authors: Ren Ng, Marc Levoy, Mathieu Brédif, Gene Duval, Mark Horowitz, Pat Hanrahan.
Conventional cameras do not record most of the information about the light distribution entering from the world. The goal of the camera presented in this paper is to re-capture this lost information: to measure not just a 2D photograph of the total amount of light at each point on the photosensor, but rather the full 4D light field measuring the amount of light traveling along each ray that intersects the sensor. One can also think of this as capturing the directional lighting distribution arriving at each location on the sensor....
Click on the link below to read more about Light Field Photography technology:
Light Field Photography with a Hand-held Plenoptic Camera