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posted by Fnord666 on Sunday July 14 2019, @09:58PM   Printer-friendly
from the striding-with-intensity dept.

Submitted via IRC for AnonymousLuser

Identifying perceived emotions from people's walking style

A team of researchers at the University of North Carolina at Chapel Hill and the University of Maryland at College Park has recently developed a new deep learning model that can identify people's emotions based on their walking styles. Their approach, outlined in a paper pre-published on arXiv, works by extracting an individual's gait from an RGB video of him/her walking, then analyzing it and classifying it as one of four emotions: happy, sad, angry or neutral.

[...] The approach first extracts a person's walking gait from an RGB video of them walking, representing it as a series of 3-D poses. Subsequently, the researchers used a long short-term memory (LSTM) recurrent neural network and a random forest (RF) classifier to analyze these poses and identify the most prominent emotion felt by the person in the video, choosing between happiness, sadness, anger or neutral.

The LSTM is initially trained on a series of deep features, but these are later combined with affective features computed from the gaits using posture and movement cues. All of these features are ultimately classified using the RF classifier.

Randhavane and his colleagues carried out a series of preliminary tests on a dataset containing videos of people walking and found that their model could identify the perceived emotions of individuals with 80 percent accuracy. In addition, their approach led to an improvement of approximately 14 percent over other perceived emotion recognition methods that focus on people's walking style.


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  • (Score: 0) by Anonymous Coward on Monday July 15 2019, @03:17AM (1 child)

    by Anonymous Coward on Monday July 15 2019, @03:17AM (#867063)

    Blew out my knees trying to run cross country in high school, probably due to a coach that didn't know anything about bio-mechanics (not blaming that coach, very few people knew that stuff in the late 1960s). Don't know exactly what went wrong, but my knees hurt a lot and I had sense to quit rather than "push through" the pain and do more permanent damage.

    Anyway, bicycling works for me--as long as I pay attention to my position on the bike and make sure my knees track (roughly) in one plane (don't flop sideways). Cycling is a good workout and also a good way to run local errands--I hate the idea of sitting in a car just to get somewhere (gym) to exercise.

    Back on topic, I wonder what the gait analysis looks like for cyclists walking in ultra-stiff-sole cleated shoes (many of these shoes lift the toes up relative to the heel). Sort of the opposite of teetering on high heels.

  • (Score: 0) by Anonymous Coward on Monday July 15 2019, @04:23AM

    by Anonymous Coward on Monday July 15 2019, @04:23AM (#867079)

    For folks with decent legs, a mixture of biking and walking/jogging is great. If you're jogging correctly, there should be as little up and down as possible. That's just wasted effort as well as something that's going to damage joints over the long term.