{"id":883,"date":"2013-09-27T03:16:39","date_gmt":"2013-09-27T03:16:39","guid":{"rendered":"http:\/\/www.worldofmastermind.com\/?p=883"},"modified":"2017-01-17T07:18:59","modified_gmt":"2017-01-17T07:18:59","slug":"%e6%97%8b%e8%bd%89%e8%88%9e%e5%a5%b3%e7%8f%be%e8%b1%a1%e7%9a%84%e7%9c%9f%e7%be%a9%e8%a7%a3%e8%aa%aa","status":"publish","type":"post","link":"https:\/\/www.worldofmastermind.com\/?p=883","title":{"rendered":"\u65cb\u8f49\u821e\u5973\u7684\u771f\u7fa9 (\u8996\u89ba\u66ab\u7559\u3001\u76f8\u7e8c\u76f8)"},"content":{"rendered":"

\"Spinning_Dancer<\/a>\"Spinning<\/a>
\u9019\u526f \u201c\u65cb\u8f49\u7684\u821e\u5973\u201d \u662f\u57fa\u65bc\u79d1\u5b78\u5bb6\u6240\u8b02 \u201c\u8996\u89ba\u66ab\u7559\u201d. \u8996\u89ba\u66ab\u7559 (Persistence of vision) \u662f\u5149\u5c0d\u8996\u7db2\u819c\u6240\u7522\u751f\u7684\u8996\u89ba\u5728\u5149\u505c\u6b62\u4f5c\u7528\u5f8c\uff0c\u4ecd\u4fdd\u7559\u4e00\u6bb5\u6642\u9593\u7684\u73fe\u8c61\uff0c\u5176\u5177\u9ad4\u61c9\u7528\u662f\u96fb\u5f71\u7684\u62cd\u651d\u548c\u653e\u6620\u3002\u539f\u56e0\u662f\u7531\u8996\u795e\u7d93\u7684\u53cd\u61c9\u901f\u5ea6\u9020\u6210\u7684\uff0c\u5176\u6642\u503c\u662f\u4e8c\u5341\u56db\u5206\u4e4b\u4e00\u79d2\u3002\u662f\u52d5\u756b\u3001\u96fb\u5f71\u7b49\u8996\u89ba\u5a92\u9ad4\u5f62\u6210\u548c\u50b3\u64ad\u7684\u6839\u64da\u3002\u201c\u65cb\u8f49\u7684\u821e\u5973\u201d\u662f\u7531\u5e7e\u5f35\u5e73\u9762\u5716, \u4ee5\u9069\u7576\u7684\u901f\u5ea6\u8b8a\u63db, \u6211\u5011\u7684\u610f\u8b58(\u5927\u8166)\u5c07\u9019\u4e9b\u5716\u7247\u5f71\u50cf\u52a0\u4ee5 \u201c\u89e3\u91cb\u201d \u5716\u7247\u672c\u8eab\u6c92\u6709\u53f3\u8f49\u6216\u5de6\u8f49.<\/strong>
\"Left_spinning_dancer\"<\/a> \"Right_spinning_dancer\"<\/a> <\/p>\n

\u6211\u5011\u65e5\u5e38\u4f7f\u7528\u7684\u65e5\u5149\u71c8\u6bcf\u79d2\u5927\u7d04\u7184\u6ec5100\u9918\u6b21\uff0c\u4f46\u6211\u5011\u57fa\u672c\u611f\u89ba\u4e0d\u5230\u65e5\u5149\u71c8\u7684\u9583\u52d5\u3002\u9019\u90fd\u662f\u56e0\u70ba\u8996\u89ba\u66ab\u7559\u7684\u4f5c\u7528\u3002\u8996\u89ba\u5be6\u969b\u4e0a\u662f\u9760\u773c\u775b\u7684\u6676\u72c0\u9ad4\u6210\u50cf\uff0c\u611f\u5149\u7d30\u80de\u611f\u5149\uff0c\u4e26\u4e14\u5c07\u5149\u4fe1\u865f\u8f49\u63db\u70ba\u795e\u7d93\u96fb\u6d41\uff0c\u50b3\u56de\u5927\u8166\u5f15\u8d77\u4eba\u9ad4\u8996\u89ba\u3002<\/strong><\/p>\n

\u8996\u89ba\u66ab\u7559\u73fe\u8c61\u9996\u5148\u88ab\u4e2d\u570b\u4eba\u767c\u73fe\uff0c\u8d70\u99ac\u71c8\u4fbf\u662f\u64da\u6b77\u53f2\u8a18\u8f09\u4e2d\u6700\u65e9\u7684\u8996\u89ba\u66ab\u7559\u904b\u7528\u3002\u5b8b\u6642\u5df2\u6709\u8d70\u99ac\u71c8 \u3002\u96a8\u5f8c\u6cd5\u570b\u4eba\u4fdd\u7f85\u2022\u7f85\u84cb\u57281828\u5e74\u767c\u660e\u4e86\u7559\u5f71\u76e4\uff0c\u5b83\u662f\u4e00\u500b\u88ab\u7e69\u5b50\u5728\u5169\u9762\u7a7f\u904e\u7684\u5713\u76e4\u3002\u76e4\u7684\u4e00\u500b\u9762\u756b\u4e86\u4e00\u96bb\u9ce5\uff0c\u53e6\u4e00\u9762\u756b\u4e86\u4e00\u500b\u7a7a\u7c60\u5b50\u3002\u7576\u5713\u76e4\u65cb\u8f49\u6642\uff0c\u9ce5\u5728\u7c60\u5b50\u88e1\u51fa\u73fe\u4e86\u3002<\/strong><\/p>\n

\u9019\u88e1\u89e3\u8aaa\u4e86\u8af8\u6cd5\u5be6\u76f8 \u662f\u524e\u90a3\u751f\u6ec5 \u6211\u5011(99.99999%)\u7684\u4eba\u73fe\u524d\u770b\u7684\u9019\u500b\u4e16\u754c\u662f\u500b \u201c\u76f8\u7e8c\u76f8\u201d\uff0c\u5ff5\u5ff5\u76f8\u7e8c\u3002\u524d\u5ff5\u904e\u53bb\uff0c\u5f8c\u5ff5\u53c8\u4f86\uff0c\u6c38\u7121\u9593\u65b7\u3002\u660e\u5fc3\u898b\u6027\u7684\u4eba\u770b\u7684\u662f \u201c\u975c\u76f8\u201d \u5982\u5982\u4e0d\u52d5 (\u516b\u5730\u4ee5\u4e0a\u7684\u83e9\u85a9)\u3002<\/strong><\/p>\n

Left Brain Right brain and the Spinning Girl<\/strong><\/span><\/p>\n

The principle of the rotating dancer is just like how the movie works. It is based on the principle of the “Persistence of Vision”, which refers to the phenomenon where the retina retains an image for a brief split-second after the image was actually seen, and lends itself to animation by fostering the illusion of motion when we view images in closely-timed sequence to one another. We don’t notice the fractional skips between images because that persistence fills in the momentary gap to make the motion seem seamless.<\/strong><\/p>\n

It consists of a set of two dimensional pictures (see examples below), 24 per seconds, and our brain reconstructs\/interprets the sets of pictures as motion. These kinds of optical illusions are always fun. What they reveal is how our brain processes visual information in order to create a visual model of the world. The visual system evolved to make certain assumptions that are almost always right (like, if something is smaller is it likely farther away). But these assumptions can be exploited to create a false visual construction, or an optical illusion.<\/strong><\/p>\n

The spinning girl is a form of the more general spinning silhouette illusion. The image is not objectively \u201cspinning\u201d in one direction or the other. It is a two-dimensional image that is simply shifting back and forth. But our brains did not evolve to interpret two-dimensional representations of the world but the actual three-dimensional world. So our visual processing assumes we are looking at a 3-D image and is uses clues to interpret it as such. Or, without adequate clues it may just arbitrarily decide a best fit \u2013 spinning clockwise or counterclockwise. And once this fit is chosen, the illusion is complete \u2013 we see a 3-D spinning image.<\/strong><\/p>\n

By looking around the image, focusing on the shadow or some other part, you may force your visual system to reconstruct the image and it may choose the opposite direction, and suddenly the image will spin in the opposite direction.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

\u9019\u526f \u201c\u65cb\u8f49\u7684\u821e\u5973\u201d \u662f\u57fa\u65bc\u79d1\u5b78\u5bb6\u6240\u8b02 \u201c\u8996\u89ba\u66ab\u7559\u201d. \u8996\u89ba\u66ab\u7559 (Persistence of vision) \u662f\u5149\u5c0d\u8996\u7db2\u819c\u6240\u7522\u751f\u7684\u8996\u89ba\u5728\u5149\u505c\u6b62\u4f5c\u7528\u5f8c\uff0c\u4ecd\u4fdd\u7559\u4e00\u6bb5\u6642\u9593\u7684\u73fe\u8c61\uff0c\u5176\u5177\u9ad4\u61c9\u7528\u662f\u96fb\u5f71\u7684\u62cd\u651d\u548c\u653e\u6620\u3002\u539f\u56e0\u662f\u7531\u8996\u795e\u7d93\u7684\u53cd\u61c9\u901f\u5ea6\u9020\u6210\u7684\uff0c\u5176\u6642\u503c\u662f\u4e8c\u5341\u56db\u5206\u4e4b\u4e00\u79d2\u3002\u662f\u52d5\u756b\u3001\u96fb\u5f71\u7b49\u8996\u89ba\u5a92\u9ad4\u5f62\u6210\u548c\u50b3\u64ad\u7684\u6839\u64da\u3002\u201c\u65cb\u8f49\u7684\u821e\u5973\u201d\u662f\u7531\u5e7e\u5f35\u5e73\u9762\u5716, \u4ee5\u9069\u7576\u7684\u901f\u5ea6\u8b8a\u63db, \u6211\u5011\u7684\u610f\u8b58(\u5927\u8166)\u5c07\u9019\u4e9b\u5716\u7247\u5f71\u50cf\u52a0\u4ee5 \u201c\u89e3\u91cb\u201d \u5716\u7247\u672c\u8eab\u6c92\u6709\u53f3\u8f49\u6216\u5de6\u8f49.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,49],"tags":[],"class_list":["post-883","post","type-post","status-publish","format-standard","hentry","category-1","category-49"],"_links":{"self":[{"href":"https:\/\/www.worldofmastermind.com\/index.php?rest_route=\/wp\/v2\/posts\/883","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.worldofmastermind.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.worldofmastermind.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.worldofmastermind.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.worldofmastermind.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=883"}],"version-history":[{"count":19,"href":"https:\/\/www.worldofmastermind.com\/index.php?rest_route=\/wp\/v2\/posts\/883\/revisions"}],"predecessor-version":[{"id":6810,"href":"https:\/\/www.worldofmastermind.com\/index.php?rest_route=\/wp\/v2\/posts\/883\/revisions\/6810"}],"wp:attachment":[{"href":"https:\/\/www.worldofmastermind.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=883"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.worldofmastermind.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=883"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.worldofmastermind.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=883"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}