A Review on Technical and Clinical Impact of Microsoft Kinect on Physical Therapy and Rehabilitation

Table 4

Comparison of the four discussed depth sensors.

Feature	Kinect (1st generation)	Leap	Creative	Xtion Pro Live
Size
Frame rate (fps)	9–30	30	30	30/60
Maximum depth resolution	640 × 320	N.A.	QVGA (320 × 240)	VGA (640 × 480) with 30 fps; QVGA (320 × 240); with 60 fps
Maximum RGB resolution	640 × 320	N.A.	1280 × 720	SXGA (1280 1024)
Access to raw image	Yes	No	Yes	Yes
Depth sensing range	Seated mode: physical limits 0.4–3 m; Sweet spot: 0.8–2.5 m; Default: physical limits: 0.8–4 m; Sweet spot: 1.2–3.5 m	0.025 to 0.6 m	0.15–0.4 m	0.8–3.5 m
Diagonal field of view	27° U/D; 43.5° V; 57.5° H	N.A.	73°	70° D; 45° V; 58° H
Compatible platform	Win 7, 8	Win 7, 8; Ubuntu Linux; Mac OS	Win 7	Win XP, Vista, 7; Linux Ubuntu 10.10; Android (by request)
Programming language	C++, C#; Visual Basic	C++, C#; JAVA Python; Javascript; Objective-C; Mono; Unity, Unity	C++, C#, JAVA	C++/C#, JAVA
Tracking	Whole body	Hand/finger/tool	Hand/object	Whole body/hand