To be not only sharp, but to reveal enough information there so that you can have contrast; to be able to distinguish backgrounds from foregrounds from objects was crucial.

不仅仅是清晰的问题，重要的是它使你可以从画面中得到足够的信息，从而产生对比；你可以将前景的重要物体从背景中分离出来。

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Dr LeCun's artificial visual cortex, by contrast, lights on the appropriate filters automatically as it is taught to distinguish the different types of object.

相反，LeCun博士的人工视觉皮层由于受到训练要去分辨不同种类的对象，所以可以自动的连通合适的过滤器。

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In contrast, it's hard to distinguish young migrants from their urban counterparts.

与此相反，很难从城市人中区分出年青一代的流动人口。

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"As clearly suggested by the district court, it is the contrast between the sole and the upper that causes the sole to 'pop, ' and to distinguish its creator, " the three-judge panel found.

WSJ: Louboutin Wins Round in Red-Sole Shoe Appeal