Anton Holmberg

Large scale multitouch

Abstract

Computers which support user input on a display with multiple fingers have become increasingly common in recent years. One example is Microsoft Surface 2 with a 40 inch touch display which supports over 50 fingers simultaneously.

This thesis examines how you can implement a flexible framework for gesture recognition on 2D and 3D objects for the Microsoft Surface 2 platform.The supported gestures are tap, drag, flick, pinch, spread and rotation. The framework can also easily be extended to support new gestures.

The results imply that the framework provides intuitive interaction and good performance even when over 50 fingers are present on the screen simultaneously.