I've been using LucidPix in beta, & so far it's the best solution i've found for automagically converting single 2D images to 3D. The LucidPix algorithm creates a natural sense of depth with little to no noticeable artifacting. I also enjoy the range of 3D frames available, and the fact that more frames are made available on a regular basis. While i also use two different stereo cameras for 3D photography & video, LucidPix is my go-to when i want to convert 2D images to 3D.