Always comes in 3s

作者：Bora Yavuz

3天。3激光扫描仪器。3D模型。

捕获土耳其奥斯曼帝国的布尔萨大清真寺的文化遗产项目肯定是三个 - 然后是六个。

建于1396年至1399年之间，清真寺最独特的特征之一是Minbar或讲台。每块都在6,666个互锁的胡桃木木材中与一块金属或指甲进行设计，每块代表古兰经的一段。

Leica Geosystems阿联酋办公室的任务是捕获3D模型Minbarand front interiors of the 2,215 sq m structure by Burset Project & Engineering. The project was commissioned by the Merinos Atatürk Congress & Culture Centre as an exhibit for the museum’s Ottoman era section.

“We have reached a high quality dataset within a short time with the Leica T-Scan and C10 ScanStation combination,”Burset项目与工程设计工程师CihanÖzüisik说。“这是我们反向工程项目的最佳合适解决方案，我们将来肯定会再次使用。”

Merging laser scanners for one model

The general scan of the building was captured with aLeica C10 ScanStation. With the mosque’s 20 domes and 2 minarets, the C10’s full dome and 360º focused areas scans saved the team great amounts of time, enabling the complete project to be仅在3天内完成。

与另一家六角公司合作亚搏苹果appMinbar被Leica T-Scan捕获，并由土耳其的Hexagon Manufacturing Intelligence扫描团队与Leica Absolute Tracker AT40亚搏苹果app2进行了跟踪。

“有了绝对跟踪器的最高精度，我能够捕获错综复杂的木制品的每个细节Minbar，”六边形制造情报应用程序经理 - 便携式亚搏苹果app系统GökhanSunar说。“Combined with the detailed scan of the interior of the mosque by the C10, we were able to provide a full 3D model of such a historical and culturally important site.”

Bringing several point clouds into one

The point clouds captured by different instruments were registered and overlapped in 3D Reshaper softtware and modeled.

Total data size and modeling accuracy:

• Around 1GB for high resolution C10 scans at 2 mm
• 3 GB for T-Scan and Absolute Tracker scans 20 micro-metres

The scan data from T-Scan was given in millimeters scale in order to work in a metrology market, however, the unit of C10 scan data was in metres.

为了获得多个数据的注册，将T-SCAN结果缩放在具有X1000因子的3DR软件中。然后，数据集成为相同的量表，并将最佳拟合注册函数应用于数据。

This enabled registration of the multiple point clouds in the same coordinate system. As a result, 3D models created by meshing command in 3DR and models reconstructed and edited for better quality.

With this 1-2-3 solution, the Bursa Grand Mosque is now digitally preserved for generations to come. With the 3D model on display in the museum, people are able to enjoy its beauty and cultural significance.