How to stitch point clouds with no overlap?

[amal-k-ajay]

Hi guys, I'm looking for ways to merge two point clouds from two tof cameras kept opposite to each other by using any algorithms or techniques. I tried using ICP but since there is no overlap between the point clouds it's not working. I also tried to manually transform the point clouds and merge them using know orientation and position but it's not accurate. Any help is appreciated. Thanks in advance!