Abstract
A two-point touch method for three-dimension space is proposed through introducing true three-dimension display and unmarked spatial orientation,while a two-point touch for true three-dimension display system is built.Interactive approach,which offers the solution of spatial orientation,tracking and gesture recognition,has been considered.Demonstrated in the experiments,optical-based two-point touch system meets the needs of human-computer interaction without any markers and sensors and changes of ambient light does not interfere with the operation of the human-computer interaction.
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