This message was posted on behalf of Intel Corporation
Thank you for your interest in the Intel RealSense SR300 camera.
You may find this guide helpful:
You can also post your question on the Github page since there are many RealSense 3rd party developers.
If you would like to do face scanning with the RealSense SDK, your best option at present may be to create a 'point cloud' scan of the face.
Here's an example of face tracking with a point cloud, the OpenCV vision software and a Microsoft Kinect camera.
Point clouds can be saved as a 'ply' format file and then converted into a solid mesh model like the one in your supplied images using 3D modeling software such as Blender or MeshLab. There was a discussion several months ago about doing MeshLab conversion.