- Tytuł:
- Investigation of the Accuracy of Photogrammetric Point Determination Using Amateur/Non-Metric Cameras
- Autorzy:
- Akinade, B. A.
- Powiązania:
- https://bibliotekanauki.pl/articles/1030964.pdf
- Data publikacji:
- 2020
- Wydawca:
- Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
- Tematy:
-
3D models
Amateur cameras
Digital close-range photogrammetry
Point determination
RMSD
RWPs - Opis:
- With the rapid development in the production of digital cameras and low cost of these amateur cameras, it is important to determine the possibility of using them in digital close-range photogrammetry. The main objective of this work is to investigate the accuracy attainable by using these amateur cameras for point determination, with the accuracy of point determination by total-station instrument as a reference. For this purpose, a building façade was surveyed and processed by photogrammetric and conventional survey methods. The photogrammetric survey was done using four different amateur cameras, and the conventional survey was carried out using total-station. Thirty-seven (37) points within an opened traverse were established on the exterior walls of the structure to serve as standard geo-reference points for all accuracy comparisons and they are referred to as Reference wall points (RWPs). Twenty-eight (28) of these RWPs were used as checkpoints while the other nine (9) points were used as the control points for the models. The 3D coordinates of these reference wall points were then measured with a total-station instrument. After photographs were taken, they were processed with Agisoft PhotoScan photogrammetric software, where different 3D models were constructed for the four set of photographs taken with the amateur cameras. The photogrammetric coordinates of the reference wall points were determined from the respective models. The coordinates measured from each model were then compared with the ones obtained with the total-station to determine their relative discrepancies and accuracies. The accuracy of each model was determined using the Root Mean Square Deviation (RMSD) approach. Based on the type of amateur cameras used, this work has shown that close-range photogrammetric procedure can provide accurate enough result to be used as an alternative to measurements by total station in as-built surveys or other relatively small works of similar accuracy requirements.
- Źródło:
-
World Scientific News; 2020, 145; 298-312
2392-2192 - Pojawia się w:
- World Scientific News
- Dostawca treści:
- Biblioteka Nauki
Artykuł