In this work we propose a binocular system based on a Galilean telescope used by persons with low-vision. First, a Galilean telescope is designed for a single eye. Then, once the Galilean telescope has been designed with an exit pupil size that matches with the pupil eye, the binocular system is then developed. Since the Galilean telescope is an afocal system, this allows for the eye to be relaxed, so, the use of a Galilean telescope is an option to mitigate the Vergence-Accomodation conflict, because it is a system that magnifies the image. The advantage with the proposed system is that the stereopsis allows an accurate accommodation and vergence.
A computer software is proposed in order to determine the centroids of the spots in a Hartmann pattern or
Hartmanngrams. The software was developed using algorithms for segmentation of images, which are techniques used in
digital image processing.
Centroid determination for a Shack-Hartmann pattern is the key point to obtain reliable results. We focus in obtaining
good centroid determination for Hartmanngrams under conditions of high noise. The proposed algorithms are the
essential part of this work, as they are morphological algorithms, which mainly are modifications of the weighted
averaging algorithm. They have several advantages, such as, the adjustment to the shape of every spot of the
Hartmanngram and that it is an interactive and automatic software. Although the software is more complete and reliable
than other techniques and algorithms, since it can analyze complicated pictures of Hartmanngrams and measure the
centroids of the spots.
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