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呼吸的花朵與人機運算的比較
Mauyoah
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8-14-2009 10:57 AM
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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/750bef01-d880-42fb-8155-a44c53bc44f2/324A7773-29D6-4C12-84FA-E8F3FE566241/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://mmdays.com/2008/08/23/flower_illusion_and_parallel_brain/" href="http://mmdays.com/2008/08/23/flower_illusion_and_parallel_brain/" style="font-size: 11px;">mmdays.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://mmdays.com/2008/08/23/flower_illusion_and_parallel_brain/"><H2><FONT color="#007fff"><A title="Permanent Link to 呼吸的花朵與人機運算的比較" rel="bookmark" href="http://mmdays.com/2008/08/23/flower_illusion_and_parallel_brain/">呼吸的花朵與人機運算的比較</A></FONT></H2></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://mmdays.com/2008/08/23/flower_illusion_and_parallel_brain/"><P>下面的FLASH是由 <A target="_blank" href="http://www.shapirolab.net/">Arthur Shapiro</A> 所製作的視覺錯覺。原本固定形狀的花朵,加上邊緣的線條,就會開始規律地扭轉,好像在呼吸一樣呢!</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://mmdays.com/2008/08/23/flower_illusion_and_parallel_brain/"><div bgInactive="url(chrome://flashblock/content/flash.png) no-repeat center" bgActive="url(chrome://flashblock/content/flashplay.png) no-repeat center" tabindex="0" role="button"></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://mmdays.com/2008/08/23/flower_illusion_and_parallel_brain/"><P>FLASH1 <A target="_blank" href="http://www.illusionsciences.com/2008/04/lucy-in-sky.html">呼吸的花</A></P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://mmdays.com/2008/08/23/flower_illusion_and_parallel_brain/"><P>Arthur Shapiro會在他的blog每天製作一個視覺的錯覺 (Visual Illusion)。也許會納悶,怎麼人的視覺系統會產生錯覺呢?這樣子不就不大好?其實我們也可以說,因為人類視覺系統如此特別,所以可以輕鬆地辨識物體,尤其在切割兩個重疊的影像的時候,我們可以很輕鬆地把同一盤菜裡面的菜和湯分開來,如果要用電腦來處理,目前仍然無法很容易地進行。</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://mmdays.com/2008/08/23/flower_illusion_and_parallel_brain/"><P>其中部分原因,是因為我們的視覺系統是用<STRONG>對比</STRONG>的訊號 (contrast),而不是像電腦的編碼,儲存的時候是用<STRONG>點陣圖</STRONG>的方式儲存,對比的資訊需要另外計算。電腦似乎就是用「<STRONG>絕對</STRONG>」的方式來處理視覺資訊,而人腦就是用一種「<STRONG>相對</STRONG>」的方式來處理視覺資訊,因此對電腦來說不容易的視覺工作,人腦是非常容易辦到,不過也因此會有副產品的產生,就是<STRONG>視覺上的錯覺</STRONG>了。之前曾經介紹的Ebbinghaus Illusion,就是可以說明我們使用相對資訊來處理視覺,因而產生錯覺的例子,您看!中間兩個圓圈是一樣大的,但是因為週遭圓圈大小不同,我們相對的視覺系統,就產生大小不同的錯覺了。</P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;"> </td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/324A7773-29D6-4C12-84FA-E8F3FE566241/blog/" title="blog or email this clip"><img src="http://content9.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>
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