VOA常速英语2018--运动障碍没关系 头部摆动可操控手机（在线收听）

Online shopping, checking tomorrow’s weather, sending text messages, just some of the things people do on their phones. But what if you have motor disabilities or can’t hold or touch a phone? Today, it’s almost impossible for them to directly interact with their cell phones.

网上购物、查天气预报、发送短信，这些都是大家会用手机做的事情。但如果一个人有运动障碍，握不住手机或者无法触屏呢？如今，对于这样的人来说，直接跟手机互动几乎是不可能的。

eBay research scientist General Xie needed to find a solution while working with an intern who wanted to shop online, but couldn’t hold the phone and had trouble using voice controlled software.

研究eBay的科学家谢经理需要找到一个解决方案，因为与他共事的一位实习生想要网上购物，却握不住手机，而且也很难用声音来控制软件。

They thought about using eye movement, but it turns out eyes don’t move smoothly.

他们有想过通过眼球移动来控制，但却发现眼睛无法顺畅地移动。

So they came up with another idea. Can we use that pat movement to control a virtual stylus on a cell phone? And like a lightbulb, eBay’s HeadGaze was born, using a smartphone’s camera to track head gestures.

于是，他们想到了另一个主意。是否可以通过拍打的动作来控制手机上的虚拟触控笔呢？与灯泡类似，eBay的HeadGaze就这样应运而生了，它可以通过智能手机的摄像头来跟踪头部的动作。

It’s similar like you use the mouse to control the cursor on the screens. We take that 3D head positional orientation information and apply some math, mathematics calculation, and project that information under the 2D screen so that the phone would know on which part of the screen you are looking at.

这个发明很像用鼠标控制屏幕上的光标。我们先是获取3D头部位置方向信息，然后做一些数学计算，再把信息在2D屏幕上投射。这样一来，手机就知道你在看屏幕的哪个部分了。

Besides allowing his coworker to shop by phone, Xie says HeadGaze has potential for broader applications.

除了可以让同事网上购物之外，谢经理还表示，HeadGaze还有更多的应用前景。

eBay says it’s making the software code freely available to developers, so they can come up with their own ideas for hands-free surfing.

eBay表示自己已经公开了这个软件的源代码，供所有人开发使用。这样大家就可以为无需动手就能网上冲浪的操作献计献策了。

This kind of technology has potential huge impact, and we think we’re sure to give it back to the communities so that a lot of other people can quickly adapt that technologies and benefit for that.

这类技术有可能产生重大影响，我们认为肯定能回馈各社群。这样一来，很多其他人就能迅速适应这类技术，并从中得益。

Whether scrolling through recipes or shopping online, HeadGaze could change the way we navigate our phones.

无论是浏览菜谱还是网上购物，HeadGaze都能改变我们使用手机的方式。