Abstract: A computer implemented method for emulating a mouse with a multi-touch sensitive display surface. Sensing a touching, movement or tapping by one or several fingers or fist emulates mechanical mouse functionality. Sensing a first touching by a first finger at a first location on a multi-touch sensitive display surface and sensing concurrently a second touching by a second finger at a second location on the multi-touch sensitive display surface displays a graphic object on the multi-touch display surface at a position dependent on the first location and the second location to emulate moving a mouse.

Abstract: The invention provides a method and system for adapting a single-user, single-client application for multiple clients operated by multiple users. An instance of an unmodified single-client, single-user application is executed in each of the clients, and the execution of the multiple instances of the application is coordinated by a wrapper application executing in each of the clients. The wrapper application is configured to communicate messages between the clients via a network to facilitate the coordination.

Abstract: A method summarizes a video acquired of a scene spatially and temporally by specifying a spatial query and a temporal query. Frames of the video are selected according to the spatial query and the temporal query, and then the selected frames are composited into an image that represents spatial and temporal characteristics of the scene.