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Everything is illuminated

机译:一切都照亮了

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摘要

There hasn't been a light show like this on central Berlin's Oberbaum Bridge since April 1945, when the Nazis blew up its middle section. The bridge was bombed in an attempt to slow the entry of Russia's Red Army into the city. Later, during the cold war, it was a link between the US and Soviet sectors of the divided city. Opened in its current form in 1896, suffice it to say, the bridge is historic. So of course it needs to be laser scanned. This will provide a beautifully detailed three-dimensional record of the bridge in all its classic Brick Gothic glory. Lidar is the go-to technique. A laser illuminates the subject and the reflected light is captured and analysed to producea picture, recording points at a rate of up to 960,000 per second. But for all the impressive tech, laser beams are quickly scattered and scanners easily misled. They do not see the world perfectly.
机译:自1945年4月纳粹炸毁其中段以来,就没有在柏林市中心的Oberbaum桥上进行过这样的灯光秀。这座桥被炸,企图减慢俄罗斯红军进入这座城市的速度。后来,在冷战期间,这是分裂城市的美国和苏联部门之间的联系。这座桥于1896年以目前的形式开放,可以说是历史悠久。因此,当然需要对其进行激光扫描。这将为桥梁的所有经典砖哥特式荣耀提供精美精美的三维记录。激光雷达是首选技术。激光照亮对象,捕获并分析反射光以生成图片,记录点的速度高达每秒960,000。但是对于所有令人印象深刻的技术,激光束会快速散射,扫描仪很容易被误导。他们看不到完美的世界。

著录项

  • 来源
    《New scientist》 |2014年第2965期|24-25|共2页
  • 作者

    Rowan Hooper;

  • 作者单位
  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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