This is one of the more interesting stories I’ve run across in awhile. Researchers are digitally mapping the faces of women as they eat foods such as ice cream, and using the computer models to gauge their level of happiness. The company Unilever, is planning to use the technology to help them develop products such as reduced-fat ice cream that bring consumers the same pleasure as the real deal.

Dutch researchers Theo Gevers and Nicu Sebe, known mostly for their work deciphering the Mona Lisa’s smile, have created a face recognition system which can gauge a person’s level of happiness. The scientists, working with the multinational goods-manufacturer Unilever, created a face-tracking algorithm which maps video of a subject’s face into 3D regions, and then uses those regions to determine their level of pleasure. The tests followed European women’s reactions to eating five different foods: vanilla ice cream, chocolate, cereal bars, yogurt and apples. Unsurprisingly, the scientists discovered that women enjoyed eating ice cream and chocolate far more than an apple or yogurt — the latter even evoking “sad” expressions from 28% of test subjects. Unilever hopes to put the technology to work in creating products such as reduced-fat ice creams which elicit the same response as their full-fat counterparts, while the researchers will be launching a consumer version of the software sometime in August, as well as a website to analyze up to 1,000 user-provided photos daily.