Oliver Cossairt's camera, which he's named Motion Contrast 3D Laser Scanner (MC3D), uses a similar process of single-point scanning like the original Kinect models, however it only scans portions of a scene that have changed, which ultimately makes the scanning process faster and be of higher quality.

Source: 3ders.org – Revolutionary Motion Contrast 3D scanner MC3D could be better than Kinect | 3D Printer News & 3D Printing News