IFD:PFDH WiSe22/Sources-24Oct22

Image aquisition tips:

any camera can do BUT higher resolution = higher model detail
always shoot raw - process if necessary - export tiff / jpeg
use fixed focal length / 24mm - 50mm recommended
if variable zoom then keep it always at minimum or maximum length and don’t change it while shooting
constant aperture f/5.6-8.0 (f/11 max)
keep whole object in focus
iso as low as possible 100-800
diffuse light - no hard shadows!
camera orientation depending on subject - fill the frame
increments of 10-15 degrees between pics
overlap two thirds / 60% of last pic
no over- or underexposed pics
use gray card / color checker if necessary
use printed measurement markers / tennis balls for big scenes / or when footage origin differs
use tripod when low light or turntable
shoot from as many angles as possible, up to down and around
always take more pics than necessary

Calibrated Photogrammetric Scale Bars (as an example, regarding targets)
http://culturalheritageimaging.org/What_We_Offer/Gear/Scale_Bars/index.html

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Origins of Photogrammetry

Albrecht Meydenbauer https://de.wikipedia.org/wiki/Albrecht_Meydenbauer

Aimé Laussedat https://en.wikipedia.org/wiki/Aim%C3%A9_Laussedat

Camera Lucida https://neolucida.com/history

Stereo photography http://camera-wiki.org/wiki/Stereo https://en.wikipedia.org/wiki/Stereoscope

Aerial photogrammetry https://www.researchgate.net/figure/Figure-12-Illustrate-the-geometry-of-aerial-photogrammetry-13_fig1_334164581
https://en.wikipedia.org/wiki/Stereoplotter