Dual Depth Sensors vs Sony PS Eye Comparison

There is no straightforward answer to the questions which is better - Dual Depth Sensor or Sony PS Eye Cameras configuration. The accuracy of tracking is almost the same. Pros and cons summary:

Cameras	Pros	Cons
Dual Depth Sensors	Easier to set-up and calibrate Require less space due to wider angle of view, minimum required space is 9 x 5 feet ( = 2.7 x 1.5 meters)	Capture are is limited with 7 x 7 feet ( = 2 x 2 meters) Maximum framerate is 30 fps (cannot track fast motions) More problems with occlusion (especially for complex motions including rotations)
Sony PS Eye (3 to 6 cameras)	More accurate tracking for head and feet MUCH bigger capture area, up to 20 by 20 feet ( = 7 by 7 meters) 60 fps framerate allow to track very fast motions Less problems with occlusion (especially for 6 cameras)	Set-up and calibration takes more time More issues with USB controllers (you need 3 USB controllers for 6 cameras) You need more space, minimum required space is 13 x 13 feet ( = 4 x 4 meters) Higher requirements for HDD speed