People have been pursuing fast and convenient methods to control machines. However, the existing human-computerinteraction methods still have many shortcomings. We present here a fast blink-control system based on FPGA. Thevideo image processing technologies were utilized to realize the blink-control algorithm and the Verilog hardwaredescription language (Verilog HDL) was taken to develop functional modules on the FPGA. Positioning human eye andrecognizing blink were implemented with integral projection method based on gradient operator according to features ofeyes. Then, subsequent operations were performed based on judgement results. The designed fast blink-control systemwas verified on ALTER FPGA development platform. The results showed that the accuracy to detect eye blink (frontface, no inclination) was 98% and the average response time of the system was about 413ms, which reached the real-timedetection level. Therefore, it has achieved the goal to provide a new control mode which is fast and effective.
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