Snapchat has been really popular since I came to America. There are a lot of people around me using it so I downloaded it to see why people are so crazy about it. It turned out that it is really fun using it. When you are taking selfie, it will automatically change your expression into something else, some are mimic of animal or some strange things. Although it seems a little bit weird, it works really well because the APP can recognize your facial expression clearly and when you move your head, it moves with you! So I was really curious about how Snapchat managed to do that.It turns out that, Snapchat's lenses utilized a type of special selfie "filter." Basically, the APP spotted us based on contrast patterns seen in people's faces. However it is really hard to spot specifically how people's faces look like. Snapchat's system analyzed thousands of faces to spot where eyes, nose, and lips are. After that, it can set up different masks that can move with these spots accordingly.
Although it is really interesting to have this kind of technology for fun, it is also a little bit scary to have such tech in our life. If you can have a mask that will fit your face so well, why not people can try to put your face someone else's face? It may also offend people's privacy because your expression is analyzed so clearly and who knows what you can do with those data.
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(Here is a video about how Snapchat works)
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Photo Reference:
1.http://petapixel.com/2016/06/30/snapchats-powerful-facial-recognition-technology-works/
2.http://uatoday.tv/techandscience/deal-of-the-year-snapchat-buys-ukrainian-startup-looksery-for-usd-150-mln-494701.html
Snapchat is interesting. It can recognize our facial expression clearly and moves as our head move. I just curious that whether Snapchat can determine the differences between human and ghosts because they all have eyes and noses. I have ever read some news about someone took snapchat picture and accidentally had something like ghost on pictures.
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