Structure from Motion - Case of multiple views/images

This is the logical follow-up to Structure from Motion - Case of two views/images when the number of views/images/cameras is greater than two. Here, I am focusing on incremental (sequential) Structure from Motion which is the most popular method for multiple view Stereo from Motion. This is basically what Bundler: Structure from Motion (SfM) for Unordered Image Collections and VisualSFM : A Visual Structure from Motion System use to reconstruct a sparse 3D scene from a set of images.