Suggestions may include tweaks such as selecting a sleeveless top or a longer jacket.
“We thought of it like a friend giving you feedback,” says Kristen Grauman, a professor of computer science at the University of Texas at Austin whose previous research has largely focused on visual recognition for artificial intelligence.
“It’s also motivated by a practical idea: that we can work with a given outfit to make small changes so it’s just a bit better.”
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An Artificial Intelligence eye on your fashion
The tool, named Fashion++, uses visual recognition systems to analyze the color, pattern, texture, and shape of garments in an image. It considers where edits will have the most impact. It then offers several alternative outfits to the user.
Researchers trained Fashion++ using more than 10,000 images of outfits shared publicly on online sites for fashion enthusiasts. Finding images of fashionable outfits was easy, says graduate student Kimberly Hsiao. Finding unfashionable images proved challenging. So, she came up with a workaround. She mixed images of fashionable outfits to create less-fashionable examples and trained the system on what not to wear.
“As fashion styles evolve, the AI can continue to learn by giving it new images, which are abundant on the internet,” Hsiao says.
The problem of bias
As in any AI system, bias can creep in through the data sets for Fashion++. The researchers point out that vintage looks are harder to recognize as stylish because training images came from the internet, which has been in wide use only since the 1990s. Additionally, because the users submitting images were mostly from North America, styles from other parts of the world don’t show up as much.
Another challenge is that many images of fashionable clothes appear on models, but bodies come in many sizes and shapes, affecting fashion choices. Next up, Grauman and Hsiao are working toward letting the AI learn what flatters different body shapes so its recommendations can be more tailored.
“We are examining the interaction between how a person’s body is shaped and how the clothing would suit them. We’re excited to broaden the applicability to people of all body sizes and shapes by doing this research,” Grauman says.
Grauman and Hsiao will present a paper on their approach at next week’s International Conference on Computer Vision in Seoul, South Korea.
Additional researchers from Cornell Tech, Georgia Tech, and Facebook AI Research contributed to the work.