Visual measurement methods are extensively used in various fields, such as aerospace,
biomedicine, agricultural production, and social life, owing to their advantages of high …

Three-dimensional (3D) printing of ocular prosthesis has been scarcely described in
medical literature. Although ocular prostheses have been 3D printed successfully, iris colors …

Vitreoretinal surgery is moving towards 3D visualization of the surgical field. This require
acquisition system capable of recording such 3D information. We propose a proof of concept …

Microlens array (MLA) errors in plenoptic cameras can cause the confusion or mismatching
of 4D spatio-angular information in the image space, significantly affecting the accuracy and …

In the presence of eyelids and eyelashes movement, pupil dilation, poor lighting, blur due to
movement during iris image acquisition, and factors that collectively cause distortion in the …

Future surgery must create disruptive value for all stakeholders, namely, patients, surgeons,
and healthcare systems. We envision that a significant part of future surgeries will be …

In the presence of eyelids and eyelashes movement, pupil dilation, poor lighting, blur due to
movement during iris image acquisition, factors that collectively cause distortion in the iris …

Iris recognition is one of the highest accuracy techniques used in biometric systems. The
accuracy of the iris recognition system is measured by False Reject Rate (FRR), which …

We present a compact catadioptric lens for use in smartphone iris imaging. With an
emphasis on object-space resolution, this lens has a large aperture. To fit within typical …

Conventional photography captures sharp images of objects which are in focus. The objects
within a given “depth of field” may be reasonably sharp. The objects farther or closer to the …