Applications of Computer Vision for the Blind and Visually Impaired

Everyday tasks such as traveling, finding directions and reading signs and other documents are very difficult for people with blindness or low vision. Computer vision has the potential to give this population access to some of the same visual information available to normally sighted persons for performing these tasks.

The lab is involved in several projects exploring these types of computer vision applications.

1.) Analyzing traffic intersections (i.e. finding a nearby crosswalk to provide proper orientation)

crosswalk

Powerpoint presentation: pdf
Relevant publication: pdf


2.) Providing terrain information for blind wheelchair users (using stereo cameras to construct a 3-D map to find curbs, ramps and obstacles)

sidewalk curb

Powerpoint presentation: pdf
Relevant publication: pdf


3.) Finding and reading text in cluttered environments (such as street signs)

Text input Text output

Powerpoint presentation: pdf
Relevant publications: pdf, pdf, pdf


4.) Finding and reading specially designed signs using off-the-shelf camera cell phones

Bill holding cell phone Bar code sign

Powerpoint presentation: pdf
Relevant publications: pdf, pdf

Upcoming workshop (Sept. 18, 2007): Computer Vision Applications for the Visually Impaired


See also an earlier version of this workshop that was held in June 2005 as part of CVPR 05.




Last updated Aug. 2007.