Optical touch handwriting delay solution method

The invention discloses an optical touch handwriting delay solution method, which comprises a Camera 1 and Camera 2 signal unit, a touch screen unit, an image signal interface, a filtering processing unit, an adaptive tracking adjusting unit and a signal storage unit. The Camera 1 and Camera 2 signal unit is normally a CCD (charge coupled device) Camera or CMOS (complementary metal oxide semiconductor) Camera and is used for shooting image signals of the touch screen unit, the touch screen unit is used for displaying the various image signals and receiving instructions, the image signal interface receives touch screen image signals shot by the Camera, the filtering processing unit realizes filtering processing for images of the touch screen image signals transmitted into the filtering processing unit via the image signal interface, the adaptive tracking adjusting unit carries out adaptive tracking adjustment for images after the images are in filtering processing and replaces an original coordinate by a new coordinate obtained by means of adaptive tracking adjustment, and the signal storage unit stores data of the images acquired via the adaptive tracking adjusting unit.