A new algorithm for rendering higher resolution 3-D images was recently described by the Massachusetts Institute of Technology (MIT) Media Lab. The high-resolution 3-D technique is glasses-free, but does not reduce brightness or restrict viewer orientation as with conventional auto-stereoscopic techniques, according to its inventors.
Instead of using the unedited left and right images from a twin-lens camera, MIT's dual-stacked LCD displays uses content-adaptive parallax barriers as displayed here.
Further Reading: http://bit.ly/NextGenLog-mP8p