(2-Aug-2010) What the Doctor Prescribes: Customized Medical-image Databases

What the Doctor Prescribes: Customized Medical-image Databases
RIT professor designs database with physician input and novel eye-tracking techniques


See the full University News article here: http://bit.ly/d8ANKB

Excerpt from the article:

...“Where people look is not really where people say they look because we’re just not aware of our visual strategies,” Haake says. “Eye tracking is a way to identify the perceptually important areas, what people pay attention to and where they are looking.”

The eye tracking effort is taking place in RIT’s Multidisciplinary Vision Research Laboratory in the Chester F. Carlson Center for Imaging Science under the supervision of co-director Jeff Pelz. “People tend not to pay attention to where they look. People move their eyes 150,000 times a day, but you don’t spend time thinking about where you will move your eyes next and you don’t waste any memory remembering where your eyes have been,” says Pelz, whose lab is part of the College of Science. “You just move your eyes to the next place you need information and a fraction of a second later you move them again.”

The study asks 16 pairs of dermatologists and physician-assistant students to view skin conditions in 50 different images displayed on a monitor. The pairing creates a master-apprentice dynamic.

“If you record the interaction between the master and apprentice while the master is explaining to the apprentice how to do something, it is an excellent way to learn domain knowledge from an expert,” Pelz says. “You get something different and better than if you just listen to two doctors talking to each other or a doctor talking to a layperson.”

A tracking device attached to the monitor recorded the physicians’ eye movements as they lingered on the critical regions in each image. At the same time, vocabulary mined from audio recordings of the physicians’ explanations will form the common search words in the database." ...

See the full University News article here: http://bit.ly/d8ANKB