The practice of determining the geometric properties of objects from photographic images.

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153 views

Photogrametry using e-Foto (Stereo Plotter, Stereo Imagery, Stereoscopy)

I'm learning Photogrametry with Stereo-view using e-Foto (http://www.efoto.eng.uerj.br/en). At the end, I want to know how to do Photogrametry via Stereoscopy in PC with Anaglyph Glasses. I could ...
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89 views

Can the Phantom 3 Pro be used to capture aerial imagery for small site plans and to derive DEM?

I am curious if this consumer UAV can be used to capture imagery for further processing to stitch seamless imagery and to use as input into stereo/photogrametry software to create reasonably accurate ...
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24 views

UAVs and using ground control

I have been having a conversation at the office about whether to use ground control when using drones/UAVs to capture aerial images. The ground control that I am referring too is any permanent survey ...
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46 views

Open source software for 3 D vector editing on top of stereo images

I am looking for an open source software that could be used to digitize 3D vector objects from a stereo pair of remotely sensed images. Photogrammetry softwares are too expensive for my use (giving an ...
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43 views

Is there an accepted model of refraction affects on aerial photography

As I understand it the changes in atmospheric density as light moves through the atmosphere causes the light to bend. That means that if you are trying to calculate the location of a point on the ...
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120 views

Orthorectification errors in ArcMap when including RPC data

I am trying to orthorectify satellite imagery with a DEM in ArcMap. I have already georeferenced the raster. The imagery came with an RPC TXT file, but when I change the name of the RPC file to match ...
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57 views

Why could imagery lose radiometric resolution after orthoresampling in ERDAS Photogrammetry

I have some issues with orthoresampling images in ERDAS Photogrammetry (formerly LPS). I've set up two different image blocks (including orientation and camera paramters) and created multiple digital ...
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216 views

Software for image orientation (aerial triangulation)

I'm trying find a software which can orient an UAV Imagery using GCPs (Ground control points in UTM Coordinates system) and Camera calibration (only camera focal length, p1,p2, k0, k1, k2, k3 and ...
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216 views

Inpho Match-AT (Application Master - Multi photo measurement)

I am new to Inpho Match-AT software and trying to do ground control measurement in Multi photo measurement. I am unable to display the outline in the overview and also the image list is not shown ...