新技術能根據用戶反應自動生成emoji表情包
Polygram is a new social app that can use AI to capture your facial expressions and automatically translate them into a range of emoji faces.
新款社交應用Polygram可以利用人工智能捕捉人們的面部表情，並自動將其轉化成一系列emoji表情。This app is free and available only for the iPhone for now.
這款應用免費，目前只適用於iPhone。Unlike on, say, Facebook, though, where you have a small range of pre-set reactions to choose from beyond clicking a little thumbs-up icon, Polygram uses a neural network that runs locally on the phone to figure out if you're smiling, frowning, bored, embarrassed, surprised, and more.
在Facebook上，你除了點擊那個翹拇指(點贊)的小圖標外，還有一小部分預先設定好的表情可供選擇，Polygram不一樣，它是利用在手機上本地運行的神經網絡來識別你是否在微笑、皺眉、無聊、尷尬、驚訝以及更多。
The app's AI works by capturing your face with the front-facing camera on the phone and analyzing sequences of images as quickly as possible, rather than just looking at specific points on the face like your pupils and nose.
這款應用的人工智能通過手機的前置鏡頭捕捉用戶面部表情，並儘快分析一系列圖像，並非只看瞳孔、鼻子等面部幾個特定的點。
This is done directly on the phone, using the iPhone's graphics processing unit.
iPhone圖形處理器可以直接在手機上完成這一工作。When you look at a post in the app (for now the posts seem to consist of a suspicious amount of luxury vacation spots, fancy cars, and women in tight clothing), you see a small yellow emoji on the bottom of the display, its expression changing along with your real one.
當你在應用程序內瀏覽帖子時（現在帖子中似乎總包含一些豪華度假勝地、豪華跑車和身着緊身衣的女性等內容），你會在顯示器底部看到一個黃色的表情符號，它會根據你的反應不斷變化。There's a slight delay—20 milliseconds, which is just barely noticeable—between what you're expressing on your face and what shows up in the app.
在你的面部表情和該應用的表情之間會有一個時間差，只有20毫秒，很難被人注意到。The app records your response (or responses, if your expression changes a few times) in a little log of emoji on the side of the screen, along with those of others who've already looked at the same post.
該應用程序會在屏幕的一側小表情框中記錄你的反應（如果你的表情變化多次的話，就會記錄下多個表情），你還能在表情框中看到已經閱讀過同篇帖子的其他人的表情。Polygram's founders say they're concentrating on using the technology in their own app for now, but they also think it could be useful in other kinds of apps, like telemedicine, where it could be used to gauge a patient's reaction to a doctor or nurse, for instance.
Polygram的開發者說，他們目前主要在自己的這款應用上運用該技術，不過將來這項技術可能會在其他應用上派上用場，比如說telemedicine，這樣醫生或者護士就能通過看患者的表情來判斷他們的心理反應了。
