为实现立体显示,设计并实现了基于单片机的LED背光控制系统。该系统采用单片机ATmega128为控制处理器,加以外围电路,利用RS 232接口实现与PC机人眼跟踪模块的实时通信。同时,充分利用下位机资源,在单片机上实现Kalman滤波,提高人眼定位精度,并利用Kalman预测,将跟踪速率提高一倍,有效减轻了显示器的闪烁现象。
To achieve auto-stereoscopic display,a LED backlight control system based on MCU was designed.The system used ATmega128 as system control,together with other circuits,and adopted RS 232 interface to achieve real-time communication with the eye-detect module running on PC.Meanwhile,Kalman filter algorithm was implemented on MCU for improving the positioning accuracy of human eyes,the tracking rate was improved to lighten the flicker of displayers.