Sign in to download full-size image Figure 4.5. Flow chart showing different stages in the iris matching pipeline at which the pupil dilation problem may be addressed. Normalized images have been enhanced for better visualization. Solutions to the problem of matching iris images with disparate pupil...
and that this effect size is both large and clinically relevant (difference between medians = 17.49%). Reduced ipRGC function has been associated with impaired sleep64,65and while there was reduced sleep quality in patients with PD compared...
What is pupillary distance (PD)? Pupillary distance (PD) is the distance between the pupils of your two eyes. It is an essential measurement when buying a new pair of eyeglasses orprescription sunglasses. For greatest comfort and clarity, the optical center of each lens of your glasses shou...
Sexual arousal.Recent research has confirmed that sexual arousal elicits a pupil dilation response, and that this response may be useful in sexuality research to evaluate sexual orientation.
dilate and return to its original size and configuration. Thus, the analysis object 108 evaluates the response of a pupil to a visual stimulus to determine a pupil constriction velocity and evaluates the response of the pupil to termination of the stimulus to determine first and second dilation ...
First and second dilation velocities are evaluated because a pupil generally will dilate quickly for a first period of time and, thereafter, will dilate more slowly until its original size and configuration are achieved. Finally, as explained above, an analysis object 108 in accordance with the ...
, dilate and return to its original size and configuration. Thus, the analysis object108evaluates the response of a pupil to a visual stimulus to determine a pupil constriction velocity and evaluates the response of the pupil to termination of the stimulus to determine first and second dilation ...
First and second dilation velocities are evaluated because a pupil generally will dilate quickly for a first period of time and, thereafter, will dilate more slowly until its original size and configuration are achieved. Finally, as explained above, an analysis object 108 in accordance with the ...
size and reactivity. The eyewear pupilometer is an automated means of measuring pupil size and reactivity without a doctor's office visit, without blocking a user's vision, forced medication dilation of the pupils, requiring a light stimulus to be projected onto the retina or surface of the ...
Pupil diameter curves of three methodsStatistics of running time of three methods shown that Hough transform has large amount of computation, so it is longest; literature[10] increases the operation time due to the use of dilation and erosion; the proposed method is fastest, the more images ...