文化遗产的数字化

处理精确
The challenge of the processing of the accumulated data was to develop a workflow that processes automated laser scan and photogrammetry data. The solution had to be able to also handle the large data volume.

与一家名为“捕获现实”的外部初创公司的互惠合作开始，以便在合理的时间内处理大量数据。Studio 727提供了数据样本，以测试捕获大数据上现实的创新算法的算法并创建所需功能。该软件产品如今被称为Reality Capture。

Dedik说：“由于在非常合理的时间内采用了真人秀软件，我们能够处理惊人的激光扫描和图像。”

TLS数据已使用Leica Cyclone建模软件预处理。使用旋风，将激光扫描数据取消引用，将所需点云合并并将数据转换为所需的.ptx数据类型。

飓风区分开the highest possible level of automation. The software offers the possibility that point clouds can be exported in CAD and be processed there directly, such as for ground plans or 3D drawings.

With the RealityCapture software, the georeferenced point clouds and pictures are merged in an automated process. For this, the most suitable data (laser and image data) will be selected. From this data, textural polygonal model with high accuracy were generated. The resulting 3D modelscombines the advantages of both methods.

The further processing of data occurs in JTSK coordinate system, the default coordinate system in the Slovak Republic. From this, the textural polygonal model can then be processed into highly accurate and detailed:

• ortho-images
• 3D型号
• 技术文档

In the table below are three different sized monuments that were digitised related to data volume and processing time. The time includes alignment, meshing and colouring for final models

Monument	扫描位置	图片	处理时间
Virgin Mary Assumption church in Banska Stiavnica	70	80.000	1months
Church and chapel in Spissky Stvitok	150	50.000	4个月
Historic town Banska Stiavnica	400	400.000	5 months

Dedik说：“文化古迹数字化的这种工作流程比经典的大地测量方法的优点是数据收集以及高度准确性相关的高度详细程度的时间因素。”“不再需要预先定义输出，因为可以从收集的数据中创建所有必需的文档。”

Back to Reporter 77 article overview

Story: Digitisation of cultural heritage
第1章：介绍
第2章：合并传感器以获得最佳结果
第3章：Flying high for detail
Chapter 4: Processing for precision