A Fast Calculation Method for the Coordinates of Touch

With the development of touch technology, people gradually increased demands on the touch. On the basis of uploading the touch point coordinates accurately to the PC the response rate raised certain requirements. We presents a method based on spline interpolation method to improve the response rate. After getting the coordinate point, B-spline interpolation will be used to get a series of interpolation points. The next coordinate point can be corrected by the interpolation point, simultaneously, the calculation of the coordinates can be supplemented. Experiments show that the method can effectively improve the response speed and the accuracy of the system.