Lie detector with pupil dilation and eye blinks using hough transform and frame difference method with fuzzy logic

Every human have different attributes and behaviors. In our life, many people who often lie in everything. The lie is obliged to build understanding on others, then the understanding it establishes is wrong. Indicator to knowing people is lie or not by looking at pupils, because according to the science of psychology, pupils will be dilated when the person is in a state of depression, including when lying. Eye blinking can also be an indicator to know people who lie or not by increasing the number of blinking. From the results of research conducted lie detector. Accuracy is obtained from observations on the change in pupil dilated using circular hough transform method and increase the number of blink of the eye by frame difference method. In the study, a person who lies will experience pupil dilatation of 4% to 8% of the initial pupil diameter and an increase in the number of blinking of the eye up to 8 times from the initial blink of the respondent before the question is asked. On this research the accuracy of lie detector system is 84%.