Researchers used a simple photo of a dog to demonstrate how a computer might see an image like a human does. (Click for a larger version)
Madison, Wisconsin - How could a few pictures of a dog in the grass illustrate key concepts underlying computer vision, a sophisticated science aimed at teaching machines to perform visual tasks for humans - such as recognizing faces, objects and patterns?. Vikas Singh , assistant professor of biostatistics and medical informatics at the University of Wisconsin School of Medicine and Public Health, and graduate students Maxwell Collins and Jia Xu understand the relationship very well. They created a fun, interactive application based on their highly academic computer vision research and put it on display at the recent Wisconsin Science Festival. Dozens of grade-school students were drawn to the demonstration, which gave them hands-on experience with a tablet that showed how a computer might see pictures as a human does. In one example, the youngsters used their finger to swipe a simple line through a dog shown in a picture on the screen. The app used this prompt to isolate the entire dog and remove the background of grass surrounding it. The app then isolated the dog in a second, similar picture.
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