@@ -22,12 +22,16 @@ Photogrammetry was first documented by the Prussian architect [Albrecht Meydenba
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@@ -22,12 +22,16 @@ Photogrammetry was first documented by the Prussian architect [Albrecht Meydenba
<imgsrc="images/data_model_photogrammetry.png"alt="Data Model of Photogrammetry">
<imgsrc="images/data_model_photogrammetry.png"alt="Data Model of Photogrammetry">
A typical medium resolution aerial photogrammetry scan of a barn. With 50-100 images a reasonably accurate model can be produced. Such models are often used in surveying and restoration projects from the scale of hand helf objects to cities.
## Accessibility
Photogrammetry offers remarkable accessibility and affordability. Unlike other scanning methods that require precise orbital plans or specialized equipment, photogrammetry can be achieved simply by flying a drone in a circular pattern and capturing multiple photos. Utilizing the location data from the drone, one can construct detailed models like the example shown here. This accessibility makes photogrammetry an attractive option for various applications, with results that can be sufficiently accurate depending on the specific requirements.
Photogrammetry offers remarkable accessibility and affordability. Unlike other scanning methods that require precise orbital plans or specialized equipment, photogrammetry can be achieved simply by flying a drone in a circular pattern and capturing multiple photos. Utilizing the location data from the drone, one can construct detailed models like the example shown here. This accessibility makes photogrammetry an attractive option for various applications, with results that can be sufficiently accurate depending on the specific requirements.
<imgsrc="images/house_scanning.jpg"alt="House">
<imgsrc="images/house_scanning.jpg"alt="House">
A typical medium resolution aerial photogrammetry scan of a barn.
With 50-100 images a reasonably accurate model can be produced. Such models are often used in surveying and restoration projects from the scale of hand helf objects to cities.
## Markers
However, it's essential to note that photogrammetry lacks inherent scale. Without a reference point or prior knowledge of the camera locations, the resulting model lacks a definitive scale, as cameras inherently lack absolute scale information. Therefore, incorporating at least one reference point is crucial. For example, marking a facade with visual markers or known distances, such as pieces of tape, allows for scaling within a 3D modeling program based on these references.
However, it's essential to note that photogrammetry lacks inherent scale. Without a reference point or prior knowledge of the camera locations, the resulting model lacks a definitive scale, as cameras inherently lack absolute scale information. Therefore, incorporating at least one reference point is crucial. For example, marking a facade with visual markers or known distances, such as pieces of tape, allows for scaling within a 3D modeling program based on these references.
