VOA常速英语:Look Ma, No hands_ A New Way to Surf Your Smartphone

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、查看每天的天气、发送短信，这都是人们可以在手机上做的一些事情。但是如果你有运动障碍，或者是无法用手拿到手机呢？今天，运动障碍人士几乎无法直接使用手机。
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.
eBay研究科学家谢经理遇到了一位实习生，这名实习生想在网上购物，但无法用手使用手机，在使用声控软件时也遇到了困难，需要找到一个解决方案。
They thought about using eye movement, but it turns out eyes don’t move smoothly.
他们考虑过通过眼球运动来控制，但发现眼球移动并不流畅。
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.
所以他们想出了另一个主意，我们能不能用一些适当的动作来控制手机上的虚拟触控笔呢？就像灯泡一样，eBay发明出了HeadGaze，使用智能手机的摄像头跟踪头部手势来完成控制。
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.
类似于使用鼠标控制屏幕上的光标，我们获取3D头部位置方向信息，并应用一些数学计算并在2D屏幕上投影，以便能让手机获取到你正在查看屏幕的哪个部分。
Besides allowing his coworker to shop by phone, Xie says HeadGaze has potential for broader applications.
除了能让他的同事通过电话购物，谢说HeadGaze还有更广泛的应用潜力。
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，它正在向开发人员免费提供软件代码，这样他们就可以提出免手触控制的新想法。
This kind of technology has potential huge impact and we think we’re sure to give it back to the communities.
这种技术有巨大的潜在影响，我们一定会让这种技术造福社区人民。
So that a lot of other people can quickly adapt that technologies and benefit for that.
因此，许多人能够迅速适应这项技术，并从中受益。
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。
Michele Quinn VOA news San Francisco.
美国之音记者Michele Quinn旧金山报道。