Method and apparatus for distinguishing between blink event and instrument line of sight using opening width

摘要

The present invention relates to a method (500) for distinguishing between a blink event (102) and an instrument line of sight (104) using an opening width (106). The eye opening width (106) represents the latest detected interval between the eyelids of the eye (110). In a determination step (502), a blink event (102) is determined using at least one blink limit value (116). At this time, the blinking event (102) is determined when the opening width value (112) reflecting the value of the opening width (106) is smaller than the blinking limit value (116). In the determination step (504), the instrument line of sight (104) is determined using the maximum blink time (120). At this time, the instrument line of sight (104) is determined when the recognized blink event (102) is recognized longer than the maximum blink time (120). Each step (502, 504) of the method can be re-executed when the open width value (112) is greater than the open limit value (122) following the determination (504) of the instrument line of sight (104). . [Selection] Figure 1