I recently came across a paper entitled "Low-Cost Laser Range Scanner and Fast Surface Registration Approach"[1]
Abstract. In the last twenty years many approaches for contact-free
measurement techniques for object surfaces and approaches for 3d object
reconstruction have been proposed; but often they still require complex
and expensive equipment. Not least due to the rapidly increasing number
of efficient 3d hard- and software system components, alternative lowcost
solutions are in great demand. We propose such a low-cost system
for 3d data acquisition and fast pairwise surface registration. The only
hardware requirements are a simple commercial hand-held laser and a
standard grayscale camera.
I plan on using it for the starting point of a series of projects in the near future.