Is the axis camera set up properly?
The code you are using makes the assumption that the camera is at the 10.xx.yy.11 ip address. where xxyy is your team number.
Code:
camera = AxisCamera.getInstance(); // get an instance of the camera
If you look at the
javadoc for that method you'll see the mention of the default IP.
There's information on how to configure your camera properly
here.