Alternatives to Kinect for outdoor use

[Arthur Cnops]

I have an idea for a project where I would use Kinect outdoors. Well in fact not outdoors, but behind a window looking outside.

Since apparently Kinect behaves poorly in sunlight, I guess Kinect is not an option. The application should work at all times.

Are there any alternatives to Kinect for outdoor use? I want to track hand gestures (swiping mostly).