Saturday, September 02, 2006

Using video technology to assist with tunnel vision

Tunnel vision is a debilitating side-effect for some sufferers of glaucoma and RP (retinitis pigmentosa). Scientists at the Schepens Eye Research Institute, an affiliate of Harvard Medical School, have been trying to help these sufferers by overlaying processed video images on top of what would normally be seen. The device they have invented consists of a miniature camera, pocket-sized computer and transparent computer display mounted on a pair of eye glasses (see image above). The video is rendered at 30 frames a second to provide full-motion images. The processed image that is overlayed is a wider field-of-view image that only shows outlines of objects (obtained by filtering with an edge-detection algorithm)(see image below).

To view a video (avi or mov) follow this link to the Harvard web site. The Schepens press release is here.

(Hat-tip: Science Daily)
(Image sources: Graham Ramsey photo on Schepens web site and Science Daily)

No comments: