VICAP: Using the mechanisms of trans-saccadic memory to distinguish between humans and machines

Since demand for using online services are growing rapidly and therefore there are more number of users who prefer to use online based services such as mobile banking, email accounts, online socializing, etc. for their day-to-day needs. Therefore, the number of online threads and automated computer attacks (known as bots) which try to abuse the service provides are increasing as well. For this reason, CAPTCHA challenge was introduced in order to distinguish between real human users and automated computer bots. In this paper, we have proposed a novel human-machine separation technique based on the ability of the human´s visual system to remember and superimpose all the seen frames also known as Persistence of Vision. Since this ability is uniquely dedicated to the human´s visual system therefore, it is believed to be resistant against different computer recognition techniques.