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  • Harry was a friendly young man, 32, married with a wife and children.

    哈利是位友善的 32 歲年輕人,有老婆及小孩。

  • The only problem was that Harry couldn't actually recognize his wife or children by looking at their faces.

    唯一的問題是:哈利其實無法從臉部辨識出他的太太與孩子們。

  • His wife, for example, had to identify herself to Harry by wearing conspicuous articles of clothing, like a big red hat.

    舉例來說,他太太必須穿著顯眼的服裝,例如大紅帽子哈利才能認出她。

  • By taking one quick look at something like... my face... you can tell my age, gender, race, where I'm looking and even my mood.

    快速地看過某項東西,比如說我的臉,你可以辨別出我的年齡、性別、種族、正在看哪,甚至是我的心情。

  • And if you've met me before, hello, you generally recognize me in a fraction of a second.

    如果你曾見過我,嗨,通常不到一秒鐘你就可以認出我。

  • We have this amazing ability to recognize faces.

    人類擁有了不起的臉部辨識能力。

  • There's even a dedicated area in our brains for it, but we hardly ever stop to think just how amazing this really is.

    大腦甚至有個部分專職於此,但我們從沒細想過這件事有多神奇。

  • For all the new faces we see, our brains figure out how different it is from our perception of an average face.

    每當見到新面孔,大腦能分清這張臉與所謂「大眾臉」的差異。

  • This is an average of all of the faces you've encountered before.

    「大眾臉」指的就是我們遇過所有面孔的平均結果。

  • Our brains reduce the facial features, like eyes or lips, to a point and what we remember is just the distance and direction of that point from the centre.

    大腦會忽略臉部器官,例如眼睛或嘴脣,只記得它們與臉中心的距離與角度。

  • This is called face-space, not like the FaceSpace the Oatmeal invented but a vector based mathematical model of face perception proposed by researchers in the 80s.

    這稱為臉部空間,不是 Oatmeal 發明的 FaceSpace,而是 80 年代學者提出的一個向量基礎臉部辨識數學公式。

  • It allows us to remember a huge amount of faces, because what we store in our memory is this code, rather than having a photographic memory for faces as a whole.

    這讓我們能記下大量的臉孔,因為記憶儲存的是代碼數據,而不是像照相式的臉部記憶。

  • Because of this tendency to construct an "average face" from all of ones that we see, we're more likely to remember distinctive faces,

    因為我們是從見過的人中建立了一個「大眾臉」,所以我們更容易記住「有特色」的臉,

  • like Gollum's huge eyes or Mr. Spock's pointy ears.

    像是咕嚕的大眼睛或史巴克尖尖的耳朵。

  • As for people we already know, like our friends, family and even celebrities, something interesting happens inside our brain when we see their faces.

    至於已經認識的人,向我們的朋友、家人,甚至是名人,每當見到那些人時,腦內就會發生有趣的事。

  • Researchers recorded lots of single neurons, which are so incredibly tiny, in patients suffering from epileptic seizures who had electrodes implanted within their skull.

    研究人員在癲癇患者頭骨內植入電極,記錄他們腦內的單一神經元,這種神經元很小。

  • They found that single neurons fired only when subjects were shown pictures of Jennifer Aniston, or Halle Berry, compared other faces or objects they didn't recognize.

    他們發現,比起不熟悉的面孔或物體,受試者只在看到珍妮佛·安妮斯頓或哈莉·貝瑞的照片時,單一神經元才會被觸發。

  • Your neurons aren't lightening up because you're jealous of Jen's hair or love her chin, it's simply because you recognize her.

    並不是因為你嫉妒珍妮佛的頭髮或喜歡她神經元才被觸發,純粹只是因為你認識她。

  • This activation of your neurons happens for your friends and families too, it's quite appropriately called "the grandmother cell".

    這種神經元觸發也會發生在你看到朋友和家人時,我們可以稱之為「祖母細胞」。

  • Some researchers question the existence of such a neuron, but perhaps the neurons firing is our way of retrieving our face space memory.

    有些研究者質疑此神經元的存在,但也許這樣的神經觸發正是我們記憶臉部的方法。

  • Sadly there are times when grandmother won't be there to help.

    難過的是,有些人沒有祖母幫忙。

  • There are some people, just like Harry, who don't recognize any faces, ever.

    有些人,像是哈利,永遠無法辨別任何臉孔。

  • People who suffer from this condition, face blindness or prosopagnosia, have a warped face space.

    患有此症狀者,會臉盲,也就是無法辨識面部,對他們而言面部空間會扭曲。

  • Most of the time it's due to brain damage in facial recognition areas.

    大部份患者是因為大腦臉部辨識區域的創傷而患病。

  • Harry actually sustained head injuries from a car crash, other people are born with it.

    哈利其實曾在車禍中受過嚴重頭部創傷,而有些人則天生如此。

  • It's like people suffering from this condition just can't join the dots,

    患者們無法將這些點連接起來,

  • some face blind people will only recognize those they see very often, some won't recognize anyone at all.

    有些患者只能認出他們常見的人,有些則完全認不出任何人。

  • So things like Facebook are even better at identifying you than some people are.

    所以比某些人,像臉書這類軟體搞不好還比較能認出你。

  • And facial recognition technology actually uses the face-space principles to work.

    而且臉部辨識技術其實也是使用臉部空間原則運作的。

  • This technology identifies you, or me,

    這項科技認出你我的方式

  • by measuring things like the distance between your eyes, the width of your nose, the shape of your cheekbones and the length of your jaw line.

    是衡量人的眼距、鼻寬、顴骨形狀,以及下顎線長度。

  • In other words, your faceprint.

    換句話說,就是你的臉部痕跡。

  • While most of our brains do this intuitively,

    雖然我們的大腦能直覺性地分辨人臉,

  • I hope there's some way for facial recognition technology to help face blind people recognize their wife or children in years to come.

    但我希望幾年內,臉部辨識技術能幫助無法辨識臉部的人認出他們的老婆及孩子。

  • So the next time you just can't remember a person's name, be thankful that you can recognize their face.

    所以下次你記不起某人名字時,要感謝至少你能認出他們的臉。

  • And that you don't have to wear this for your significant other to recognize you.

    也要感謝你不用戴這種東西你的另一半也能認出你。

  • If you haven't already, subscribe to BrainCraft! I have a new video out every other week.

    如果還沒訂閱,快訂閱 BrainCraft 吧!我們每兩週會上一次新影片呦!

Harry was a friendly young man, 32, married with a wife and children.

哈利是位友善的 32 歲年輕人,有老婆及小孩。

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