Combination of Manual, Geodetic and Photogrammetric Measurements ...
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During this process it is of high importance to examine the collected data according to completeness and consistency. A well-suited
technique for this purpose is the projection of acquired 3D vector data (from tacheometrie, bundle or stereo photogrammetric
restitution) into oriented images (Wiedemann 2001, Fig. 7).
3.4. Data Analysis and Presentation
As the data collection has been carried out in an analogue way, it is still necessary to do the data analysis also on paper. Even if the
main publication concerning the Ninfeo has been published as e-book online on the internet (Doring 1999) most of the graphics have
been collected in a traditional way and scanned afterwards. This was the only way to create homogeneous products (Fig. 8). The
creation of suitable and complete 3D representations requires still a lot of interactive work on the computer but delivers sometime
impressive results (Fig. 9). In the near future this multiple analogue-digital conversions and vice-versa have to be avoided by
developing suitable digital data collection and analysis tools (Rohn 2001).
Figure 8: Manually drawn isometric view based on combined measurements
Phase
Architectural Research Team
Geodetic Team
Acquisition
Site Research
Survey Preparation
Archival and Environmental Research, Copies of
Historical Imagery and Texts
-
Campaign Preparation
Campaign
Determination of Control Points to be Signalised, Definition of Section Planes
Site Sketches
Design, Survey and of the Control Network
Autonomous manual measurements
Photogrammetric Image Acquisition
Measurement of Details
Orthogonal Measurements
Post-Processing
Documentation, Room Book
Geodetic Adjustment
-
Stereophotogrammetric Restitution
Image Rectification
Data Fusion
Data Transformation
Data Analysis
Presentation of Results
Table 1: Simplified work flow during the project Ninfeo Bramanteco