Aerial Photograph Footprint Size Calculation

So if I assume the following variables:

x = camera sensor x size

y = camera sensor y size

f = focal length

h = height above ground

And I am looking for:

ay = photo y ground distance

ax = photo x ground distance

Would these formulas work? making sure that I compare the proper units to the proper units.

(h/f)*x = ax

(h/f)*y = ay

Does this make sense. See my crude photo below (source of diagrams:http://www.nrcan.gc.ca/earth-sciences/products-services/satellite-photography-imagery/aerial-photos/about-aerial-photography/891)

enter image description here


We have created an webpage with a script that will perform the calculation for you: Aerial Camera Ground Footprint Calculator. You just have to enter the variables mentioned and click the Calculate button. Please note the calculator interface is in English, but the primary site language and explanations are in Spanish.

Tags:

Aerial Photography

Photogrammetry

Related

ArcGIS modelbuilder: Iterate through Excel sheets? What does feature mean in QGIS? For looping folder to batch clip rasters by polygon using python and QGIS? How to find the attributes of a shapefile from the command line? Postgis shapefile loader 2.1 error: dbf file can not be opened Impossible to sum rasters because of nodata pixels Selecting features with NULL Geometry from Shapefiles using QGIS? intersection between two multipolygons yielding anomalous GeometryCollection object full of LineString's & Polygon's (trying to get intersect area) Tracing up a stream network & tabulating attributes of polygons it passes through Checking current user privileges for ArcDE dataset with ArcPy Setting OpenLayers 3 Layer Visibility Numbering polygons according to their spatial relationships?

Recent Posts