1. A method, comprising: under control of one or more processors executing computer-executable instructions: receiving video information of a face rotating from a front view position to a side view position; creating a 3-dimension model of the face at least based in part on the video information, the creating including: dividing the video information into a plurality of segments; and calculating a length of each segment such that upon dividing the video information, the plurality of segments comprise at least one frame overlapping between successive segments for continued feature tracking.