In this tutorial you learn how to replace the content of a tablet PC in After Effects and mocha. Besides the basics of tracking and corner pin, you learn
* how to do complicated tracks of reflecting surfaces,
* how to add depth of field to your corner pin
* how to do rotoscoping quicker with mocha and the Refine Soft Matte effect

more infos at:
http://mamoworld.com/tutorials/advanced-screen-insert-corner-pin-mocha-and-after-effects

MochaImport+
http://aescripts.com/mochaimport/

The clip used in this tutorial was kindly provided by pond5.com
https://www.pond5.com/stock-footage/8852757/female-hands-tablet-computer-indoors.html