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一個編程人員與機器人的對話

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發(fā)表于 2010-2-23 15:09:44 | 只看該作者 回帖獎勵 |倒序瀏覽 |閱讀模式
關(guān)鍵詞: 對話 , 機器人
智能機器人理論基礎(chǔ)對人類來說,90%的信息來自于視覺。就算對一個只有3歲的小孩,也很容易識別一個物體是否蘋果。但是對機器人來說,視覺是否是一個很簡單的問題呢?

如下是一個編程人員與一個機器人的對話。

Programmer: I want you to tell me if you see any apples.

Robot: Describe this thing you call "apple."

Apples are apple-shaped. Look for something that's apple-shaped.

What do you mean by "apple-shaped"?

Well, sort-of round with a dimple at the top and a little stem.

This "stem" is always at the top of an apple?

Not necessarily. The apple might be upside-down or sideways. You must look for stems in all directions.

What if the stem is hidden behind the apple so I can't see it? And what is a stem anyway?

Good point. Forget about stems. Let's start with color. Most apples are red, but then again some are green. I guess a bad apple might even be brown.

Are all things red, green or brown apples?

No! Apples are other things too. For example, most apples are a little bit shiny.

What do you mean by shiny, and how shiny is "a little bit shiny"?

They reflect light well, but not as well as a mirror.

Great. What is a mirror? And what do you mean by "reflect"?

A mirror is something that shows an image of you and what's behind you when you look into it.

I don't know what I look like, or what's behind me - I only have one camera.

Ok, forget about the mirror. You asked what "reflecting" means. Reflecting is when light bounces off of something. If there's a bright light on the apple, you will see a small white reflection off of it.

Got it. So wherever I can find red, green, or brown, and a white spot inside (if it's bright), there's an apple. How can I tell if the light is bright enough that it would make a reflection?

Argh! Never mind! Let's try something else - size. Apples are about 3 inches across.

What do you mean by "about"? If it's 4 inches across could it be an apple? How about if it's 27 inches across?

Let's say all apples are between 3 and 5 inches across.

Is a quarter of an apple still an apple?

Yes, but let's pretend it's not.

What if in front of me there's a red apple sitting on a red table? How can I tell where the apple ends and the table begins? If I can't do that, I couldn't possibly find an apple.

Well, you can see the edge of the apple, right?

Maybe. How do I do that?

The edge is darker than the rest of the apple if there's a shadow, or lighter if there's no shadow and the table is lighter than the edge of the apple, but the apple isn't necessarily a perfectly solid color - I mean there could be dark spots on the apple that aren't edges, and - oh no - there could be photographs of apples on the table which aren't actually apples, or even a wax model of an apple which looks exactly like an apple but isn't, or the apple could have a bite taken out of it, or be really far away so it looks too tiny or too close so it looks really big, or, or... um...

Had enough?

Yes, I think I get your point.
沙發(fā)
發(fā)表于 2010-3-17 14:35:41 | 只看該作者
哦我的天啊 怎么都是英文呢?
板凳
發(fā)表于 2010-8-5 20:48:50 | 只看該作者
太牛皮
地板
發(fā)表于 2010-8-12 14:08:38 | 只看該作者
哈哈,英文不好
地下室
發(fā)表于 2010-8-13 08:48:01 | 只看該作者
很好
6
發(fā)表于 2010-9-14 21:59:49 | 只看該作者
哈哈,給機器描述特征很難解決實際識別的問題。

應(yīng)該像教1歲小孩那樣,通過視覺和語言識別物體。
7
發(fā)表于 2010-10-25 18:08:29 | 只看該作者
oo,人工智能
8
發(fā)表于 2011-5-31 23:16:34 | 只看該作者
不懂啊,什么東西?
9
發(fā)表于 2011-9-18 14:45:07 | 只看該作者
10
發(fā)表于 2012-1-4 22:26:04 | 只看該作者
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