Introduction to Photogrammetry
Netherlands Institute for Sound and Vision
Storytellers United
@storyunite
3D scanning
Photogrammetry
The science of making measurements from photographs
Using software to construct 3D models from sets of photographs (or video frames)
Structure from Motion
Photogrammetry
recognizes key points
shared across a set of images
and reconstructs
their 3D position
Accessibility
Affordability
Accuracy
Photogrammetry vs
other techniques
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(e.g. laser based)
Capturing Scenarios
object
facade / wall
room
Fixed zoom level
Fixed white balance
Fill the frame
Fully in focus
Evenly lit
Camera settings
Ensure at least 50% overlap
Approx 30 - 50 photos give decent results
Think: photos as data
Avoid blind spots
Photo taking
hard to scan...
transparent things
reflective
things
thin
parts
comparisons = combinations
3
3
4
6
5
10
2
1
combinatorial explosion
💥😱
in this together
Shared notepad
includes all the links!
Cheat Sheet
Thanks
These folks have provided helpful input into this workshop:
James George & Alexander Porter @scatterco
Lesley Johnston @LesleyJohnston_
Daniel Livingstone @gsofasimvis
Anna Desponds
Shoe Photos by Jake Ingle, Sylwia Bartyzel, Alex wong, Apostolos Vamvouras
on Unsplash