Is it actually possible for AI to read emotions from facial expressions?
If you look at someone with a smile, you know that they are happy, and if they are crying, they are sad. From such an idea, in 2015,
Facial expressions don't tell the whole story of emotion
https://news.osu.edu/facial-expressions-dont-tell-the-whole-story-of-emotion/
Scientists say it is 'completely baloney' that you can read people's emotions from their expressions | Daily Mail Online
https://www.dailymail.co.uk/sciencetech/article-8011151/Scientists-say-completely-baloney-read-peoples-emotions-expressions.html
Facial expressions don't reflect emotions: study
https://www.smh.com.au/world/europe/facial-expressions-may-not-reflect-emotions-study-20200218-p541z1.html
In response to the question 'is it possible to detect emotions from facial expressions?', 'The conclusion is that it is basically impossible' was held on February 16, 2020 Alex Martinez of Ohio State University's Department of Electrical and Computer Engineering at the American Society for the Promotion of Science Annual Meeting 2020 . Since the advent of AI and machine learning, many companies have been developing technologies to read emotions from facial expressions, and the research group led by Prof. Martinez used to aim at developing such systems.
So Martinez collected and analyzed the facial expressions of 4 million people in 35 countries and compared their facial expressions with their emotions. As a result, it was found that facial expressions and emotions were not linked, and attempts to detect emotions from faces almost always failed. Professor Martinez commented on this conclusion: 'Everyone changes the facial expression they create depending on the situation and cultural background. Just because a smile is not necessarily happy, just because a smile is not necessarily unhappy.' did.
However, many companies and organizations are currently developing systems that measure customer satisfaction from the face of customers, eagerness of students taking lectures and facial expressions to judge whether a suspect is guilty in a criminal investigation. I'm in a hurry. Professor Martinez warned about this situation, 'Such a technology is even dangerous, because the claim that you can read your inner heart from facial expressions is completely random.'
Past research that explored the relationship between culture and the environment and emotions showed that emotions represented by facial expressions differ depending on the region and cultural background, indicating that `` emotional detection technology '' is dangerous. It has been.
Why is AI 'feeling detection technology', which reads emotions from human expressions, considered dangerous? -GIGAZINE
With the inability to read emotions from facial muscles, Martinez et al.'S research group began to think that facial expressions alone were not enough to read emotions. Therefore, the research group focused on 'complexity' as the next clue. 'When a person learns emotions, the complexion changes, as the brain releases hormones that change blood flow and the composition of the blood,' said Martinez.
However, according to Martinez, 'expression and complexion alone are still not enough.' 'Even if a photograph of a soccer player who is happy to score a goal, if he cuts out only the face, he looks only angry,' said Martinez. Even people, not only AI, have a view that if they do not comprehensively judge from posture, pose, and the situation at that time, they can not infer emotions.
by Articularnos.com
Martinez said, 'I still believe we can develop algorithms that understand people's feelings and social implications, but there are two important things you need to know about this technology. 'Expressions alone aren't enough to tell your feelings.' And 'You can't achieve 100% accuracy.'
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