Algorithms that change the image on a screen, depending on the user's glasses prescription, is at its "heart" technology that they develop researchers of the University of California, Berkeley, in collaboration with scientists from MIT and Microsoft.
According to a report by MIT Technology Review, the algorithm changes the light from each individual pixel through a light filter in front of the screen so that the light rays reach the retina in a way that results in a clear image. The central idea, according to the researchers, is to predict how an eye (for example, with myopia) will distort the image (correcting the glasses) and change it proactively so that the viewer sees it clearly.
According to Bryan Barsky, a computer science professor and one of the contributors of the paper, it is basically like changing what the eye's eye is about to do. This technique, in addition to helping people with simple / common sight problems to use glasses-free screens, may also be useful for people with more serious problems that are not corrected by contact lenses or glasses. Although similar methods have been tried out in the past, this new approach results in a cleaner image with high contrast.
The paper is to be presented at the annual International Conference and Exhibition on Computer Graphics and Interactive Techniques in Vancouver. For the purposes of the research, objects images such as a colorful balloon or a portrait of Vincent Van Gogh were taken and algorithms deforming the image were used, taking into account the viewer's eye. Images were then viewed on the screen of an iPod Touch where a special filter was applied.
According to Gordon Wedgestein, a researcher at the MIT Media Lab who participated in the research, the next step will be to create screens that can be used by the general public - something that is expected to happen within a few years, as there are still challenges on the specific issue, such as that the technique currently requires o user to keep his eyes still and that it cannot currently work for more than one person looking at the screen at the same time.
Source: naftemporiki.gr
