Also, using the "openni_grabber" example, how would I modify that to record clouds from two sensors at once?
I'm trying to improve the precision of my recordings by getting clouds from two different sensors at the same time, and "averaging" the two together. I'll build a rig that can keep the sensors in exactly the same relative positions, then scan with the whole rig. After some calibration, I should have a known transform that will always align the cloud from one sensor to the other. Then, I can "merge" the clouds together to get a more accurate result.
Only problem is, I don't understand the openni_grabber example very well, so I'm not sure how to add another input to it.