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Facebook推出3D照片功能(双语)

  Facebook first showed off its 3D photos back in 2018, and shared the technical details behind it a month later. But unless you had one of a handful of phones with dual cameras back then (when they weren’t so common), you couldn’t make your own. Today an update brings 3D photos to those of us still rocking a single camera.

  2018年Facebook首次展示了3D照片,一个月之后又分享了产品的技术细节。但当时除非你有一部双摄像头的手机(那时这种手机还不多),否则你自己拍不出这种效果。现在更新后的技术让我们只有单摄像头手机的人也能拍出3D照片了。

  In case you don’t remember or haven’t seen one lately, the 3D photos work by analyzing a 2D picture and slicing it into a ton of layers that move separately when you tilt the phone or scroll. I’m not a big fan of 3D anything, and I don’t even use Facebook, but the simple fact is this feature is pretty cool.

  以防你忘了或者最近没见过Facebook的3D照片,我可以告诉你,这种3D照片技术先要分析2D照片并把它切分成很多层,倾斜手机或滚动屏幕时各层可以独立移动。我不是特别热衷3D的东西,我甚至都不用Facebook,但我喜欢这个功能的原因很简单,就是它太棒了。

Facebook推出3D照片功能(双语)

  The problem is it used the dual-camera feature to help the system determine distance, which informed how the picture should be sliced. That meant I, with my beautiful iPhone SE, was out of the running — along with about a billion other people who hadn’t bought into the dual-camera thing yet.

  问题是以前要使用双摄功能来帮助系统确定距离,这样才能知道如何切分照片。这就意味着我和我美美的iPhone SE做不到,还有约十亿人当时都没有买双摄手机。

  But over the last few years the computer vision team over at Facebook has been working on making it possible to do this without dual-camera input. At last they succeeded, and this blog post explains, in terms technical enough that I’m not even going to attempt to summarize them here, just how they did it.

  但在过去几年里,Facebook的计算机视觉团队一直在研究如何不用双摄像头就能实现这一功能,最终他们成功了。这篇博文解释了他们是如何做到的,技术层面的问题我就不打算在这里总结了。

  The advances mean that many — though not all — relatively modern single-camera phones should be able to use the feature. Google’s Pixel series is now supported, and single-camera iPhones from the 7 forward. The huge diversity of Android devices makes it hard to say which will and won’t be supported — it depends on a few things not usually listed on the spec sheet — but you’ll be able to tell once your Facebook app updates and you take a picture.

  取得的进步意味着虽然并非所有手机,但是目前很多相对高级的单摄像头手机应该都能使用这一功能了。谷歌Pixel系列现在支持这一功能,还有单摄像头的iPhone 7及配置更高的手机都可以。安卓手机种类太多,很难说哪些安卓手机支持这一功能,这取决于一些通常没有在产品规格中显示的数据。但你只要更新一下手机中的Facebook应用,拍个照片就知道了。

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