análise retrato revela que a face humana pode expressar pelo menos 21 emoções.pdf

17/4/2014 Análise Retrato revela que a Face Humana pode expressar pelo menos 21 emoções

http://petapixel.com/2014/04/04/portrait-analysis-reveals-human-face-can-express-least-21-emotions/ 1/8

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Análise Retrato revela que a Face Humana pode expressar pelo menos 21 emoçõesMichael Zhang · 04 de abril de 2014

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Quantas emoções humano pode captar na câmera? De acordo com um estudo realizado por pesquisadores da Ohio State University, o número é de pelo menos 21.

Ao longo da história, acreditava-se que há apenas um pequeno punhado de emoções humanas básicas: felicidade, tristeza, raiva, medo, surpresa e desgosto. AleixMartinez, professor de engenharia elétrica e informática na OSU, acreditava que tinha que haver mais.

"Seis parecia um pequeno número dado o arco-íris de possibilidades de sentir e expressar emoções", diz TEMPO .

Para investigar esta questão, Martinez voltou-se para a fotografia e algum software de visão computacional fantasia. Os pesquisadores recrutaram 230 voluntários paraposar para retratos simples. Cada fotografia foi capturada depois de fornecer os temas com cenários para responder emocionalmente - coisas como cheirar maus odoresou ouvir notícias surpreendentes.

Após a captura de 5.000 retratos diferentes, a equipe alimentou-os para um computador para análise dos músculos faciais. Esta técnica revelou que existem 21 emoçõesdistintas complexos que são comuns à humanidade.

São eles: feliz, triste, com medo, com raiva, surpresa, nojo, feliz surpresa, felizmente enojado, triste com medo, com raiva, infelizmente, infelizmente surpreso, tristerevoltado, com medo com raiva, com medo surpreso, terrivelmente revoltado, com raiva surpreendido, com raiva revoltado, enojado surpreso , horrorizada, ódio ereverente.

22 expressões faciais emocionais diferentes. O primeiro na parte superior esquerda é "neutro".

Novas câmeras digitais têm muitas vezes " detecção de sorriso "para encaixar automaticamente retratos quando sorrisos são vistos no quadro, mas" feliz "não é sempreolhar os fotógrafos querem. Talvez, no futuro, as câmeras irão incluir recursos avançados de detecção de face que pode disparar o obturador quando você olha"terrivelmente enojado".

Créditos de imagem : fotografias de Aleix M. Martinez

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• Reply •

David Vaughn • 11 days ago

This chart from my 6th grade counselor's office begs to differ.

6

• Reply •

RonT • 11 days ago David Vaughn

Nice!

• Reply •

RonT • 11 days ago

see more

Interesting. My educational background is in psychology, not just photography (the two go well together). Photographers are probably more aware offacial emotion expressions than many and photographs of facial emotions have been the basis of this type of research since it began.

This is actually very old social research and a lot of work has been done on this subject. Work on facial expression of emotion goes back to at leastDarwin (he wrote a book over a hundred years ago, some years after his famous "Origin of the Species') and probably farther. 'Modern' researchgoes back at least 75 years.

In that time, probably the most famous name in facial emotion expression is Paul Ekman. His published work on facial emotions with Freisen andothers has led to significant understanding in the field of detecting deception (lying). His work forms the basis of training courses for lie detection formany security and law enforcement services, especially in the US (probably most famously in modern culture it is the basis of the TV series 'Lie toMe') and his research has led to the analysis of hundreds of thousands of portraits of expressions.

The core of his results suggest that there are up to 7 Universal Emotions (not just 7 emotions). That is 7 emotions that are expressed by all faces allover the world, regardless of culture, society or other factors and are anger, disgust, fear, happiness, sadness, surprise and contempt (there is somewiggle room in the research on contempt, though most tend to support it on the core list, others hold the list at 6). All other detected emotions arevariations or modifications on the core universal emotions (such displayed by the list produced by this chap). There is also evidence by a variety ofresearchers that some facial emotions are culturally modified - that some expressions of emotion only exist in a specific culture.

So while his list of 21 isn't 'wrong' (lots of people have suggested lists of emotions even larger than that). It just isn't necessary as most of his list are

2

• Reply •

Darren D. Stoner • 11 days ago

There are seventeen different things a guy can do when he lies to give himself away. A guys got seventeen pantomimes. A woman's got twenty, buta guy's got seventeen... but, if you know them, like you know your own face, they beat lie detectors all to hell. ~Vincent Coccotti

• Reply •

Davor Pavlic • 10 days ago

I think I'll go with Paul Ekman on this. The guy spent years of research in the field living with people and watching them, not looking at some photos.And even if this Martinez would have done the same, he only made combinations of the 6 basic feelings. Even with Paul Ekmans research you couldgo further into deconstructing the face. One can only show disgust and one can show disgust cmobined with intense anger, that doesn't make it aseparate feeling, but a combination of two.

• Reply •

one • 10 days ago

Much more.

• Reply •

Graf Almassy • 9 days ago

Sure...

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análise retrato revela que a face humana pode expressar pelo menos 21 emoções.pdf

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