MB-Ruler Pro -perspective measuring
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![Page 1: MB-Ruler Pro -perspective measuring](https://reader033.fdocuments.us/reader033/viewer/2022060202/559cb5781a28abed048b4814/html5/thumbnails/1.jpg)
Measuringdistances, areas and angles
in photoswith
MB-Ruler Pro
© Markus Bader - MB-Softwaresolutions
MB-Ruler Pro - „perspective measuring“
![Page 2: MB-Ruler Pro -perspective measuring](https://reader033.fdocuments.us/reader033/viewer/2022060202/559cb5781a28abed048b4814/html5/thumbnails/2.jpg)
MB-Ruler Pro - „perspective measuring“
Task:
Measure distances and areas in the walls of a house.
Preconditions: Image of the house Measured values of a reference rectangle
![Page 3: MB-Ruler Pro -perspective measuring](https://reader033.fdocuments.us/reader033/viewer/2022060202/559cb5781a28abed048b4814/html5/thumbnails/3.jpg)
MB-Ruler Pro - „perspective measuring“define reference rectangle
Aufgabenstellung:
Vermessung von Abständen undFlächen in der perspektivischverzerrten Haus-Fasade.
Voraussetzungen: Fotografie des Hauses Maße eines Referenz-Rechtecks
The reference rectangle is a rectangle, that was measured in reality (width and height)It lies in the same plane, were the other values will be measured.
measured values
define vertices of therectangle
![Page 4: MB-Ruler Pro -perspective measuring](https://reader033.fdocuments.us/reader033/viewer/2022060202/559cb5781a28abed048b4814/html5/thumbnails/4.jpg)
MB-Ruler Pro - „perspective measuring“plane, with possible measure values
Aufgabenstellung:
Vermessung von Abständen undFlächen in der perspektivischverzerrten Haus-Fasade.
Voraussetzungen: Fotografie des Hauses Maße eines Referenz-Rechtecks
The reference rectangle defines a plane in the image, were you can measure further values – highlighted red. Define an other reference rectangle for objects outside this plane.
![Page 5: MB-Ruler Pro -perspective measuring](https://reader033.fdocuments.us/reader033/viewer/2022060202/559cb5781a28abed048b4814/html5/thumbnails/5.jpg)
MB-Ruler Pro - „perspective measuring“measure a distance (1)
Aufgabenstellung:
Vermessung von Abständen undFlächen in der perspektivischverzerrten Haus-Fasade.
Voraussetzungen: Fotografie des Hauses Maße eines Referenz-Rechtecks
0,92 m
1,175 m
Results measured live
![Page 6: MB-Ruler Pro -perspective measuring](https://reader033.fdocuments.us/reader033/viewer/2022060202/559cb5781a28abed048b4814/html5/thumbnails/6.jpg)
MB-Ruler Pro - „perspective measuring“measure a distance (2)
Aufgabenstellung:
Vermessung von Abständen undFlächen in der perspektivischverzerrten Haus-Fasade.
Voraussetzungen: Fotografie des Hauses Maße eines Referenz-Rechtecks
0,90 m
0,91 m
Results measured live
![Page 7: MB-Ruler Pro -perspective measuring](https://reader033.fdocuments.us/reader033/viewer/2022060202/559cb5781a28abed048b4814/html5/thumbnails/7.jpg)
MB-Ruler Pro - „perspective measuring“measure a distance (3)
Aufgabenstellung:
Vermessung von Abständen undFlächen in der perspektivischverzerrten Haus-Fasade.
Voraussetzungen: Fotografie des Hauses Maße eines Referenz-Rechtecks1,12 m
1,54 m
Results measured live
![Page 8: MB-Ruler Pro -perspective measuring](https://reader033.fdocuments.us/reader033/viewer/2022060202/559cb5781a28abed048b4814/html5/thumbnails/8.jpg)
MB-Ruler Pro - „perspective measuring“measure a distance (4)
Aufgabenstellung:
Vermessung von Abständen undFlächen in der perspektivischverzerrten Haus-Fasade.
Voraussetzungen: Fotografie des Hauses Maße eines Referenz-Rechtecks
6,01 m
Results measured live
![Page 9: MB-Ruler Pro -perspective measuring](https://reader033.fdocuments.us/reader033/viewer/2022060202/559cb5781a28abed048b4814/html5/thumbnails/9.jpg)
The length of inaccesible distances can the measured indirectly – an image is sufficient
The errors of measured distances is less than 3%
MB-Ruler Pro - „perspective measuring“summary (1)
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MB-Ruler Pro - „perspective measuring“summary (1)
But:What, if the image of the house can only be taken from a side angle?
The length of inaccesible distances can the measured indirectly – an image is sufficient
The errors of measured distances is less than 3%
![Page 11: MB-Ruler Pro -perspective measuring](https://reader033.fdocuments.us/reader033/viewer/2022060202/559cb5781a28abed048b4814/html5/thumbnails/11.jpg)
MB-Ruler Pro - „perspective measuring“
Task:
Measure distances and areas in the walls of a house.
Preconditions: Image of the house Measured values of a reference rectangle
![Page 12: MB-Ruler Pro -perspective measuring](https://reader033.fdocuments.us/reader033/viewer/2022060202/559cb5781a28abed048b4814/html5/thumbnails/12.jpg)
MB-Ruler Pro - „perspective measuring“define reference rectangle
Aufgabenstellung:
Vermessung von Abständen undFlächen in der perspektivischverzerrten Haus-Fasade.
Voraussetzungen: Fotografie des Hauses Maße eines Referenz-Rechtecks
The reference rectangle is a rectangle, that was measured in reality (width and height)It lies in the same plane, were the other values will be measured.
measured values
define vertices of therectangle
![Page 13: MB-Ruler Pro -perspective measuring](https://reader033.fdocuments.us/reader033/viewer/2022060202/559cb5781a28abed048b4814/html5/thumbnails/13.jpg)
MB-Ruler Pro - „perspective measuring“plane, with possible measure values
Aufgabenstellung:
Vermessung von Abständen undFlächen in der perspektivischverzerrten Haus-Fasade.
Voraussetzungen: Fotografie des Hauses Maße eines Referenz-Rechtecks
The reference rectangle defines a plane in the image, were you can measure further values – highlighted red. Define an other reference rectangle for objects outside this plane.
![Page 14: MB-Ruler Pro -perspective measuring](https://reader033.fdocuments.us/reader033/viewer/2022060202/559cb5781a28abed048b4814/html5/thumbnails/14.jpg)
MB-Ruler Pro - „perspective measuring“measure a distance (1)
Aufgabenstellung:
Vermessung von Abständen undFlächen in der perspektivischverzerrten Haus-Fasade.
Voraussetzungen: Fotografie des Hauses Maße eines Referenz-Rechtecks
0,92 m
1,175 m
Results measured live
![Page 15: MB-Ruler Pro -perspective measuring](https://reader033.fdocuments.us/reader033/viewer/2022060202/559cb5781a28abed048b4814/html5/thumbnails/15.jpg)
MB-Ruler Pro - „perspective measuring“measure a distance (2)
Aufgabenstellung:
Vermessung von Abständen undFlächen in der perspektivischverzerrten Haus-Fasade.
Voraussetzungen: Fotografie des Hauses Maße eines Referenz-Rechtecks0,90 m
0,91 m
Results measured live
![Page 16: MB-Ruler Pro -perspective measuring](https://reader033.fdocuments.us/reader033/viewer/2022060202/559cb5781a28abed048b4814/html5/thumbnails/16.jpg)
MB-Ruler Pro - „perspective measuring“measure a distance (3)
Aufgabenstellung:
Vermessung von Abständen undFlächen in der perspektivischverzerrten Haus-Fasade.
Voraussetzungen: Fotografie des Hauses Maße eines Referenz-Rechtecks1,12 m
1,54 m
Results measured live
![Page 17: MB-Ruler Pro -perspective measuring](https://reader033.fdocuments.us/reader033/viewer/2022060202/559cb5781a28abed048b4814/html5/thumbnails/17.jpg)
MB-Ruler Pro - „perspective measuring“measure a distance (4)
Aufgabenstellung:
Vermessung von Abständen undFlächen in der perspektivischverzerrten Haus-Fasade.
Voraussetzungen: Fotografie des Hauses Maße eines Referenz-Rechtecks
6,01 m
Results measured live
![Page 18: MB-Ruler Pro -perspective measuring](https://reader033.fdocuments.us/reader033/viewer/2022060202/559cb5781a28abed048b4814/html5/thumbnails/18.jpg)
The length of inaccesible distances can the measured indirectly – an image is sufficient- even if the image is taken from a side angle
The errors of measured distances is less than 3%
Therefore the error of an areais less than 5,9%
MB-Ruler Pro - „perspective measuring“summary (2)
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MB-Ruler Pro - „perspective measuring“measure an area
The measured results differ from the different angles of view – but are equal within the calculated errors of areas of less than 6%
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Images with a low resoultion
Image not focused in the image part of the reference rectangle
small reference rectangle (in pixel)
reference rectangle is far away from the camera
kleine Brennweiten (Weitwinkel und Fischaugen) ==> Linseneffekte am Bildrand
MB-Ruler Pro - „perspective measuring“precision of measuring / frequent errors
The precision of the results depend on several parameters.
Avoid these point to guarantee a high precision
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MB-Ruler Pro - „perspective measuring“demo version
Die in dieser Präsentation verwendeten Bilder sind Bestandteilder Demoversion des MB-Ruler Pro Zusatzmoduls „perspektivischeVermessung“.
Laden Sie die Demoversion von der „MB-Ruler Pro“ Homepage
http://www.Markus-Bader.de/MB-RulerPro/perspektive.d.php4
herunter und experimentieren Sie.