There are some glasses-free 3D TVs around, but their limited viewing angles and poor picture quality aren't very inspiring -- so Fraunhofer's latest project is a welcome endeavor. It's developed STAN (STereoscopic ANalyzer), a system that lets broadcasters easily use four cameras instead of the usual two, for 3D recording. 3D needs a minimum of two lenses to register depth and keeping multiple shooters in sync is tough and expensive. That's led to the industry relying on two, which is why glasses-free (autostereoscopic) 3D TVs get such a poor picture; more cameras means more viewing angles. STAN co-ordinates the setup of the four cameras and then uses a feature detector to identify common elements in the pictures and merges them into a 3D image. Four cameras provide much more depth, which means more viewing angles, which means that if STAN gets picked up, these guys can throw away the sunglasses, even for live broadcasts.
Gizmag
Fraunhofer
