What is Notre Dame laser modeling? Will this help repair and reconstruction? On the evening of April 15, Paris time, Notre Dame, the landmark of Paris, was destroyed in a fire, which made people all over the world feel sad. Fortunately, first of all, the fire was not caused by deliberate arson. Second, the fire has been basically put out, and most of the remaining buildings and cultural relics of the cathedral have been protected. Finally, the damage that has been done may not be too great. 'the clock tower of Quasimodo 'is still there, which makes many people who care about Notre Dame feel a little relieved.
One person's research can make it look less bad. Dr. Andrew Tallon, an art historian and historical modeler, conducted a comprehensive study of Notre Dame in 2015, creating a digital archive of the building. Despite its long history, Notre Dame has little information about the architects and designers who built it. So Talon hopes to use laser scanning technology to decipher this ancient building.
Talon's laser modeling technology refers to using a laser to 'photograph' Notre Dame, mounting the scanner on a tripod, and then measuring the distance between the scanner and each point hit by the laser. Because each point represents a different distance, by analyzing these millions of points, Talon can understand how Notre Dame expands and contracts in sunlight, and how it changes in a longer period of time. Combining the 'point data cloud' generated by the laser scanner with the pictures taken on site, Talon built a detailed model for the design of the underlying structure and Notre Dame, so as to judge where the original architect deviated from the original plan or stopped work due to the unstable ground conditions.
Talon described the technology in detail in an interview with National Geographic: 'I have to build a network of targets that represent location points in space. After defining the scanning density (scanning resolution), release the laser. After emitting a beam of light, it measures the time it takes for the beam to hit the target and return to the target. '