Under the condition of PC cluster-based multi-projector tiled display wall,we design and develop a gesture-based interaction system(GBIS)resorted to computer vision techniques and data glove devices.

A method of two-dimensional sketch recognition based on incremental mode was proposed according to the characteristics of gesture interaction in pen-based three-dimensional modeling technology.

As a form of natural interaction, the gesture interaction is becoming more and more importance and universal.

Then it designed and implemented a 3D sketch rendering system which offered an interaction environment for 3D model rendering based on pen,3D model could relate with 2D interaction gestures by the silhouette in the system,and user could interact with the 3D models freely and flexibly in the 2D environment,then user wouldl get very .

The current situation of interaction based on technology applied in distance education of Jiangsu province has been studied and analyzed using the method of investigation.

Traditional user interface paradigms conform to command based interaction, which the input and output is based on the stream of discrete events.