JCIPRNET
Touch projection system and touch sensitivity adjusting method thereof
A touch projection system and a touch sensitivity adjusting method thereof are provided. A size of a projected image provided on a screen is varied by the touch projection system according to a distance between a projection apparatus and the screen. The method includes following steps. An image frame including two light spots formed by first and second light sources is captured, and the two light spots are being detected to calculate by a distance therebetween in the image frame. The size of the projected image corresponding to the distance between the two light spots in the image frame is determined according to a look-up table. A sensitivity of a light detecting apparatus performing a touch detection on the projected image is adjusted according to the size of the projected image.
Coretronic Corporation
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G06F G06F G06F
inventional inventional inventional
Yung-Chih Je-Fu
Chen Cheng