文化遗产的数字化

Processing for precision
累积数据处理的挑战是开发一个处理自动激光扫描和摄影测量数据的工作流程。该解决方案还必须能够处理大数据量。

一个与外部的互利合作start-up company called Capturing Reality began in order to process huge volumes of data in reasonable time. STUDIO 727 provided the data samples to test Capturing Reality’s innovative algo-rithms on the big-data and create needed functionality. The software product is today known as RealityCapture.

“We were able to process astonishing amounts of laser scans and images thanks to the RealityCapture software in very reasonable time,” said Dedik.

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。

飓风区分开最高的自动化水平。该软件提供的可能性可能会在CAD中导出点云并直接在此处处理，例如地面计划或3D图纸。

借助RealityCapture软件，在自动化过程中合并了地理参考点云和图片。为此，将选择最合适的数据（激光和图像数据）。从这些数据中，产生了具有高精度的纹理多边形模型。由此产生的3D模型combines the advantages of both methods.

数据的进一步处理发生在斯洛伐克共和国的默认坐标系JTSK坐标系中。因此，可以将纹理多边形模型处理成高度准确和详细的：

• ortho-images
• 3D型号
• technical documentation

在下表中是三个不同尺寸的纪念碑，这些纪念碑与数据量和处理时间相关的数字化。时间包括最终型号的对齐，网格和着色

纪念碑	Scan positions	图片	处理时间
Virgin Mary Assumption church in Banska Stiavnica	70	80.000	1months
Spissky Stvitok的教堂和教堂	150	50.000	4months
历史悠久的小镇Banska Stiavnica	400	400.000	5个月

“The advantages of this workflow of the digitisation of cultural monuments over the classical geodetic methods are the temporal factor with the data collection as well as the highly detailed degree in connection with a high accuracy,” said Dedik. “It is no longer necessary to pre-define the output, because all required documentation can be created from the collected data.”

返回记者77文章概述

Story: Digitisation of cultural heritage
Chapter 1:Introduction
第2章：Merging sensors for the best results
第3章：高高飞行以获取细节
第4章：精确处理