3 Answered Questions for the topic photogrammetry

Photogrammetry Photography Formula Exif

05/10/19

How to know or calculate depth of field of a photo from EXIF tags?
I want to know the depth of field of a photo, preferably in cm or m. I know that we can know the camera setting by reading the EXIF tags, but is there a tag directly telling us the depth of field?... more
Follows • 1
Expert Answers •2

04/23/19

Real Area of a picture?
I want to know the actual area of the entire area covered by an aerial photograph. _The Photo is 4000x3000 pixels _The Focal Length of the camera is 20mm. _The Picture height is 51 meters. I... more
Follows • 2
Expert Answers •1
Photogrammetry Photography Formula Projection

04/03/19

Lens correction projection?
What is the simplest way to un-warp a photo made using fisheye or wide-angle lens? I'm looking a pixel projection formula that has few parameters. Camera and lens parameters will not be known, so... more
Follows • 1
Expert Answers •1

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