Interactive method and system based on binocular stereo vision

The present invention relates to the field of human-computer interaction, there is provided a human-computer interaction method and system for binocular stereoscopic vision, the method comprising: calibration image to a projection surface of the screen, the image projection plane acquired calibration system calibration; the and the image projection surface emitting infrared light, the infrared light encounters manpower infrared spot profile formed hand; hand contour image with an infrared spot on the projection plane acquired, calculating the coordinates of the fingertip of the hand system according to the calibration; calibration system according to the fingertip coordinates into screen coordinates to screen coordinates corresponding to perform contact operation. The present invention and an infrared detector system calibration, and to obtain the position coordinates of the fingertip, implement user based on the finger touch operation on the projection surface normal, and can be more convenient and efficient human-computer interaction, without any special panel on the projection surface and an auxiliary positioning means, easy to install and use, relatively low cost.