Narashino City, Chiba Prefecture 3D measurement of “Former Narashino Culture Hall” and digital diorama! ~Preserving the majestic appearance of the hall that was loved by citizens for 44 years and will be demolished for the future~

[Narashino City, Chiba Prefecture] 3D measurement of “Old Narashino Culture Hall” and digital diorama! ~Leaving down to the future the majestic appearance of the hall that was loved by citizens for 44 years and will be demolished~ ​
Narashino City Hall Press release: October 1, 2024 [Narashino City, Chiba Prefecture] 3D measurement of “Former Narashino Culture Hall” and digital diorama! ~Preserving the majestic appearance of the hall that was loved by citizens for 44 years and will be demolished for the future~ In order to digitally archive the Narashino Cultural Hall, which was sadly closed in March 2023 for renewal, volunteers from private businesses have teamed up to I created a digital diorama.
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Narashino Cultural Hall was sadly closed in March 2023 for renovation. In order to digitally archive this building, which was loved by many as the cultural temple of Narashino City, volunteers from private businesses teamed up to create a digital diorama of the inside of the building. Based on this data, Narashino City will create a video titled “Old Narashino Cultural Hall Digital Diorama” and will release it on the “Narashino City Official YouTube Channel” from September 30th. Architectural records are generally recorded using photographs and drawings, but this time, we used software to analyze and synthesize precise 3D point cloud data measured with a ground-based laser scanner and high-resolution images obtained using a drone and camera. Create a digital diorama. Furthermore, we used 3D data processing software to edit the video data to give it a realistic feel. To the tune of “Let’s Go Narashino,” which is familiar to citizens, we will leave behind the grandeur of the Cultural Hall for future generations. Video title: “Former Narashino Cultural Hall Digital Diorama” Video URL: https://youtu.be/j39O7XClDuI [Narashino Cultural Hall]
https://prcdn.freetls.fastly.net/release_image/43355/115/43355-115-4b773c00b6f0c9d194e6cbeb03fd2331-1280×720.jpg Opened on December 21, 1978 (Showa 53) in front of JR Tsudanuma Station. It has been popular as a cultural temple for Narashino citizens for 44 years, but will be closed on March 31, 2023 for reconstruction. The first large pipe organ installed in a public facility in Japan, it has 3,512 pipes of various sizes ranging from 5 meters to 6 mm in height. The curtain curtain with two red and white peacocks drawn on it is a masterpiece woven by a long-established store in Nishijin. [Reference information 1.] Introduction of the private individual businessman who was in charge of the digital diorama 4D LAB Mr. Masahiro Oyagi…Mainly responsible for 3D surveying using a 3D laser scanner. Sky One Mr. Katsuji Tanaka… Mainly in charge of texture image photography using drones. RS Consul Sarnab Roman…Mainly responsible for image capture using
high-resolution cameras, analysis and synthesis, 3D data processing, and video output. ■Sky One Mr. Tanaka’s comment “Digital dioramas are created based on accurate survey data, so they can be used in hardware for reconstruction, repair, disaster prevention planning, etc., and the realistic images can also be used in software for education and entertainment. Yes, we are working to preserve the historical and culturally valuable buildings and ruins created by our predecessors as digital data for future generations, and to foster local identity.” [Reference information 2.] Work to create digital diorama and video ■Equipment used: Ground-based laser scanner, industrial drone, high-resolution camera ■Work flow 1. Acquire a large number of high-density point clouds using laser light emitted by a 3D laser scanner. Since even the slightest unevenness of the irradiated object is measured, the surface shape can be precisely reproduced. 2. Convert the point cloud data obtained above to surface data (polygon data). 3. The above data is overlaid with images actually taken to create a realistic texture. This time, we took approximately 9,000 images with a high-resolution camera. 4. Using the completed digital diorama, Mr. Roman and Narashino City officials created a video of a tour inside the diorama.