【精确3D扫描资料 可帮助巴黎圣母院细节修复】

【精确3D扫描资料 可帮助巴黎圣母院细节修复】已故建筑师Andrew Tallon曾在3年前采用精密激光扫描技术和数码摄影技术,获取超过10亿个数据点,捕捉到了巴黎圣母院的每一个细节。从技术上讲,通过Tallon收集的数据,可以一块一块地3D打印出整个大教堂,这对未来巴黎圣母院的修复和重建工作至关重要,尤其是细节部分的修复。游戏《刺客信条:大革命》中的巴黎圣母院背景对建筑修复来说不太有用,但对于普通人而言,这是一个回顾火灾前巴黎圣母院的好方法。

Detailed 3D laser scans of Notre Dame Cathedral captured by late historian could be used to save the building, as officials pledge to restore it in the wake of the fire

  • After devastating fire, 3-D scans of Notre Dame from work of researcher Andrew Talon could be saving grace 
  • Using lasers and panoramic photography Tallon constructed an exact digital copy of the historic building
  • His groundbreaking work also uncovered clues as to how the cathedral was built and changed over time

The key to rebuilding Notre Dame in the wake of a devastating fire could rely on a perfectly mapped digital copy created by using laser technology.

In 2015 the late architect Andrew Tallon -- who died last year of brain cancer at the age of 49 -- successfully and painstakingly captured every detail of Paris' Notre Dame cathedral by employing a mix of laser technology and digital photography.

Using more than 1 billion points of data Tallon was able to bring the cathedral to life in what is the most accurate rendering of the building ever made.

Tallon's work that separate it from other digital scans of Notre Dame's ilk, is that it created not only a copy of how the building looked in the present moment, but also how it changed over time. The painstaking reconstruction, shown, uses more than 1 billion data points

HOW CAN LASERS CREATE 3-D REPLICAS OF BUILDINGS?

Using a rotating laser machine, researchers and architects are able to map the structure of buildings with shocking accuracy.

In the case of Notre Dame, the late architect, Andrew Tallon, used laser machine to produce more than 1 billion points of data that would become a digital replica.

Once a building is scanned by a laser, pictures can be overlaid on the resulting data to bring images to life.

Specifically, Tallon used a rotating laser machine to measure exact 3-D specifications of the interior and exterior of the church throughout more than 50 locations.

He then used panoramic photographs of the same locations mapped by lasers to overlay aesthetic detail, which allowed Tallon to stitch together a replica that was not only accurate in dimension but in physical appearance.

Tallon was not the first to leverage laser technology to map medieval buildings, but in the case of Notre Dame, he was by far the most successful.

A previous attempt to capture the cathedral in a digital replica resulted in researchers' machine literally going up in smoke, according to a National Geographic report. 

Perhaps the most groundbreaking results of Tallon's work that separate it from other digital scans of Notre Dame's ilk, is that it created not only a copy of how the building looked in the present moment, but also how it changed over time.

Structures, especially old ones, tend to evolve due to weather or other factors in the original construction as they age.

By capturing that change with unparalleled precision, Tallon's analysis of the building's evolution also turned out to be a critical tool in uncovering the methods of how it was built to begin with, many of which were long-held architectural mysteries.

Among the reveals, according to National Geographic were some previously unknown shortcuts by the cathedral's builders who actually covered up their mistakes by constructing around previous work.

As a result, the report says, the interior columns of the building don't align and neither do the aisles.

While Tallon's scans will likely go a long way in aiding future reconstruction of the severely damaged site, the work will be nothing short of monumental.

Because the entire frame of the 850-year-old building was made from timber using an estimated 1,300 trees, the blaze was able to accelerate quickly and to disastrous results.

Officials said yesterday that there is 'nothing left' of the 12th century cathedral's roof.

An outpouring of support for those in Paris and the future efforts at reconstruction won't hurt either. Leaders from around the world, including Japan, Greece, and billionaires in France have all pledged to contribute to a rebuild.

原文链接:https://www.dailymail.co.uk/sciencetech/article-6928363/3D-laser-scans-Notre-Dame-Cathedral-captured-late-historian-used-save-building.html


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