Real and fake smiles can be tricky to tell apart, but researchers at the University of Bradford have now developed computer software that can spot false facial expressions.
By analysing the movement of the smile across a person’s face, the software can determine whether or not the expression is genuine. The most significant movements detected by the software were around the eyes, supporting popular theories that a spontaneous, genuine smile is one that can be seen in a person’s eyes.
“A smile is perhaps the most common of facial expressions and is a powerful way of signalling positive emotions,” says Hassan Ugail, Professor of Visual Computing at the University of Bradford, who led the research. “Techniques for analysing human facial expressions have advanced dramatically in recent years, but distinguishing between genuine and posed smiles remains a challenge because humans are not good at picking up the relevant cues.”
The software works by first mapping a person’s face from within a video recording, and identifying the mouth, cheeks and eyes of the subject. It then measures how these facial features move through the progress of the smile and calculates the differences in movement between the video clips showing real and fake smiles.
Researchers tested the programme using two different datasets, one containing images of people expressing genuine smiles, and another in which the images portrayed posed smiles.
They found significant differences in the way the subjects’ mouths and cheeks moved when comparing the real and the fake expressions. The movements around the subjects’ eyes, however, showed the most striking variation, with genuine smiles generating at least 10 per cent more movement in these muscles.
“We use two main sets of muscles when we smile – the zygomaticus major, which is responsible for the curling upwards of the mouth, and the orbicularis oculi, which causes crinkling around our eyes,” explains Professor Ugail. “In fake smiles it is often only the mouth muscles which move but, as humans, we often don’t spot the lack of movement around the eyes. The computer software can spot this much more reliably.”
He adds: “An objective way of analysing whether or not a smile is genuine could help us develop improved interactions between computers and humans – for example in biometric identification. It could also be important to social and clinical scientists aiming to gain more insight into human behaviour and emotion.”
The Latest on: Facial expressions
via Google News
The Latest on: Facial expressions
- Facial expressions and what they really meanon October 7, 2020 at 5:18 pm
Converting emotions into quantifiable physical signs fascinated Darwin and it’s still a fascination for scientists ...
- UCF professor teaches American Sign Language via Zoom amid pandemicon October 7, 2020 at 9:09 am
American Sign Language professor Bill Cooper, who is Deaf, navigates Zoom classes at the University of Central Florida amid a COVID-19 world.
- MI vs RR: Krunal Pandya's facial expression is a whole 2020 mood; Netizens can't agree moreon October 7, 2020 at 6:05 am
Krunal's expression was exactly the whole mood of 2020 and fans can't agree more to it. The 'Meh' face of Krunal explained what it feels like to watch the match from home and it surely became the ...
- 'When there are no cheerleaders to motivate you': Krunal Pandya’s expression turns into meme-feston October 7, 2020 at 4:35 am
While the move didn’t reap much as Krunal scored only 12 runs off 17 deliveries with a six to his name, his facial expressions sure grabbed all the attention. His facial expressions were caught as he ...
- National Science Foundation Convergence Accelerator awards $1 million grant to RIT teamon October 6, 2020 at 10:39 pm
A Rochester Institute of Technology researcher is part of a team that has been awarded a National Science Foundation grant to use artificial intelligence to better understand the role of facial ...
- Tesla’s cabin camera is detecting facial features to increase vehicle safetyon October 4, 2020 at 10:40 am
When Tesla activated the cabin-facing camera within the Model 3 and Model Y in June with the 2020.24.5 Software Update, the company admitted that it would help engineer develop safety features and ...
- Facial expressions, hand gestures: The body language of the debateson September 29, 2020 at 8:42 pm
The first showdown between President Donald Trump and Democratic Presidential Candidate Joe Biden ended after a lot of interruption and back and fourth.
- Masks blur facial cues in classroomon September 27, 2020 at 4:19 pm
Placing an order at a deli counter while wearing a mask and standing 6 feet away can be difficult. Try teaching a class full of schoolchildren and connecting with students who are themselves wearing ...
- The 3 Facial Expressions That Scientifically Prove Someone Is Flirting With Youon September 22, 2020 at 2:08 pm
(Translation: They heavily analyzed women’s facial expressions while they were attempting to flirt with men in test groups). And while some women were more effective than others in conveying a ...
- 4 Features of an Effective Flirtatious Facial Expressionon September 15, 2020 at 11:42 am
New research titled "identifying a facial expression of flirtation and its effect on men" deconstructs the morphology of highly-recognized flirtatious facial expressions used by heterosexual women ...
via Bing News