机器人跟睁眼瞎差不多,要是把它们弄到大街上,或者摆在家里,搞不好就没头没脑地把人给撞了对这玩意儿谨慎一点也是人之常情。
All that a camera-equipped computersees is lots of picture elements, or pixels.
装有摄像头的计算机能看到的一切,仅仅是大量的图像元素,又称像素。
A pixel is merely a number reflecting how much light has hit a particular part of a sensor.
像素只不过是一个数值,反映照到传感器某个部位的光线亮度是多少。
The challenge has been to devise algorithms that can interpret such numbers as scenescomposed of different objects in space.
困难在于,要编写出一套计算程序,可以把这些数字再现为空间中不同物体构成的景象。
This comes naturally to people and, barring certain optical illusions, takes no time at all aswell as precious little conscious effort.
这一切对于人类来说,只是一种本能除非出现某些错觉立杆而见影,在意识上可谓不费吹灰之力。
Yet emulating this feat in computers has proved tough.
然而事实证明,在计算机上模拟人的这一天赋实非易事。
In natural vision, after an image is formed in the retina it is sent to an area at the back of thebrain, called the visual cortex, for processing.
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