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眼见为实并不科学,看这几组图你就明白了 – 译学馆
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眼见为实并不科学,看这几组图你就明白了

Can You Trust Your Eyes?

我们对周围事物的感知都依靠我们的视觉
Our perception of the world around us is strongly linked to our vision.
但你是怎么知道所看之物是真实的呢?你真的可以相信通过眼睛看到的事物吗?
But how do you know what you’re seeing is real? Can you really trust your eyes?
比如这两个灰色矩形
Take for example these two grey rectangular columns,
两者是不同深浅的灰色 真的吗?
both of which are different shades of grey. Or are they?
其实它们是完全相同的
It turns out that they’re the exact same.
即使知道存在错觉
And yet, even after knowing the illusion is there
用眼看的时候还是会觉得两者是不同的
your eyes refused to see them as the same.
本期视频就是介绍颜色产生的错觉
Introducing colors produces the same result.
我保证我们没有运用特技摄影和后期剪辑
I promise no trick photography or editing effects have been applied.
如果你去查阅一下关于 Munker白幻觉的资料
In fact, if you look up the Munker-White illusion,
你会发现更多的例子
you’ll come across many more examples.
通过photoshop你可以观察到这就是同一种颜色
Examine them in Photoshop and you can see that the colors are the exact same.
这个棋盘错觉就是个类似例子
A similar effect can be seen with this checkerboard illusion.
方格A的颜色要比方格B深 但你现在是知道事实的 对吧?
Tile A clearly seems darker than tile B. But you know better by now, right?
虽然光看是看不出来的 但当我撤走周围的图像
Even though your eyes can’t see it, you know when I removed the surrounding imagery
你却是发现这两个方格是同一种颜色 到底发生了什么呢?
the tiles will be the same color. So what’s going on here?
实际上 科学家并不是很了解这种现象
The truth is that scientists don’t fully understand this phenomenon,
这个现象混杂着许多生物因素和神经因素
and there are many complex biological and neurological factors taking place.
最终 大脑依靠周围环境判断颜色和明亮
Ultimately, our brains judge color and brightness in context.
总之 大脑通过对周围环境的比较
In other words, our brains compare the surrounding environment
造成了我们的错觉
in order to create our perception.
像这类案例中 为了和环境进行最适当的交互
The purpose of our senses or eyes in this case,
眼睛提供给我们的不是一个绝对的颜色
is not to provide us with an absolute color or physical property of our external reality,
或是对外部世界的物理性质
but to interpret what we see as efficiently as possible
而是尽可能有效的解释我们所看到的
in order to interact with the environment most appropriately.
棋盘错觉就是利用了这点
The tile illusion takes advantage of this phenomenon.
大脑知道阴影会让物体颜色看起来更深
Our brains know that shadows make objects look darker,
结果就是大脑自动认为这块方格颜色比较浅
as a result the brain compensates by interpreting the tile as being lighter
直到我们移开阴影
than it appears until we take the shadow away.
或许最明显的例子是
Perhaps, the most blatant example
梯度
is this gradient.
这根条状物其实只有一种颜色
The middle bar is simply one color.
移开背景梯度后就更明显了 再一次
Remove the background gradient and it becomes obvious. Once again,
背景色影响了我们对条状物颜色的判断
the darkness of the background has affected our perception of the bar’s color.
我们的感知是相对的
Our perception is relative.
现在你还相信你的眼睛吗?
So do you still trust your eyes?
有什么想问的问题吗?
Got a burning question you want answered?
在脸书或推特的评论区留言
Ask it in the comments, or on Facebook and Twitter
关注我们收看更多的每日科学视频
and subscribe for more weekly science videos.

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视频来源

https://www.youtube.com/watch?v=ZflIMBxyIak

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