Abstract
We present a method for inferring a 4D light field of a
hidden scene from 2D shadows cast by a known occluder
on a diffuse wall. We do this by determining how light
naturally reflected off surfaces in the hidden scene interacts
with the occluder. By modeling the light transport as a
linear system, and incorporating prior knowledge about
light field structures, we can invert the system to recover
the hidden scene. We demonstrate results of our inference
method across simulations and experiments with different
types of occluders. For instance, using the shadow cast by
a real house plant, we are able to recover low resolution
light fields with different levels of texture and parallax
complexity. We provide two experimental results: a human
subject and two planar elements at different depths