Search Results for: photogrammetry tutorial

Photogrammetry tutorial 12: How to preserve strike and dip or cardinal directions in your 3D model

Photogrammetry is a really nice and easy way of surface digitizing specimens in collections, but also useful in the field. Recently, Marie Attard, a colleague working in England, asked me to help with a project that deals with rock surface … Continue reading

Posted in Digitizing, How to, photogrammetry | 3 Comments

Photogrammetry tutorial add-on: The consequences of optimizing a sparse point cloud

If you build a photogrammetric model following the workflow I suggest in this post, one of the steps is optimizing the sparse point cloud (tie point cloud) via gradual selection and deletion of points. Here’s why that matters. Below you … Continue reading

Posted in Dinosauria, How to, photogrammetry, Sauropoda, Sauropodomorpha, Tendaguru | 12 Comments

Photogrammetry tutorial 11: How to handle a project in Agisoft Photoscan

Over the course of the last few year I have helped a bunch of people with their photogrammetry projects. Usually, they needed help with the photography – understanding how the program works, so that they take the right amounts of … Continue reading

Posted in Conferences, digiS, DigitalSpecimen 2014, Digitizing, How to, MfN Berlin, photogrammetry | 32 Comments

Photogrammetry tutorial 10: an improved method for mid-sized objects

Last December I was granted a sack full of money by the Senatskanzlei Berlin for the 2015 digiS programme. I’ll soon post more about that; what matters for this post is that I promised to mass digitize the rather unwieldy … Continue reading

Posted in 3D modeling, Digitizing, Dinosauria, Giraffatitan, How to, MfN Berlin, photogrammetry, Sauropoda, Sauropodomorpha | 6 Comments

Photogrammetry tutorial 9: Quick and dirty!

Over the course of previous tutorials and in my paper with Oliver Wings I’ve given quite a bit of advice on how to photogrammetrize objects properly. Today, I’ll address the other end of the spectrum: how to approach photogrammetry unprepared … Continue reading

Posted in AMNH, Digitizing, Dinopics, Dinosauria, How to, photogrammetry, Theropoda, Tyrannosauridae, Tyrannosaurus | 6 Comments

Photogrammetry tutorial 8: scaling “with hindsight”

Recently, I mentioned in passing that I took some photographs of specimens at the AMNH in New York so that I could better scale models I had calculated from photographs taken during my previous visit. Here’s how that worked out, … Continue reading

Posted in AMNH, Digitizing, Dinopics, Dinosaur models, Dinosauria, Khaan, Maniraptora, Oviraptorosauridae, photogrammetry, Theropoda | 8 Comments

Photogrammetry tutorial 7: multi-chunk project handling

In palaeontology (and many other disciplines) you often deal with specimens that you wish to capture in what I term “720°” – all around (360° around it for the vertical axis), and bottom and top, too (360° around the transverse … Continue reading

Posted in 3D modeling, Digitizing, Dinopics, Dinosauria, Giraffatitan, How to, MfN Berlin, photogrammetry, Sauropoda, Sauropodomorpha | 3 Comments

Photogrammetry tutorial 6: building a model from the photos

EDIT 12 May 2015: Please see this post for an update of some of the methods described below! Sometimes, a specimen is better dealt with without a turntable, even though it theoretically could go on one! We’ve been through the … Continue reading

Posted in Digitizing, photogrammetry | 14 Comments

Photogrammetry tutorial 5: a little visual aid for you

Here’s a little video I cooked up to show the turntable photography method I described in part 3 of this series. I do not wish to part with the dough to buy the video update for WordPress, so please find … Continue reading

Posted in Digitizing, photogrammetry | 3 Comments

Photogrammetry tutorial 4: bulky stuff

Previously, I had much to say about photographing specimens that you can move around and nicely place on a turntable. However, the world of vertebrate palaeo holds many specimens that do not fit into that category. Specimens that just generally … Continue reading

Posted in 3D modeling, photogrammetry, photography | 9 Comments

Photogrammetry tutorial 3: turntables

Previously, I said this series of posts wouldn’t be about the easy cases, the specimens you can photogrammetrize if you’ve got the brain of an amoeba an a cell phone camera from 1995. So remember: sometimes, much less effort is … Continue reading

Posted in Digitizing, photogrammetry

Photogrammetry tutorial 2: picture taking, general remarks

In the first part of the photogrammetry tutorial I listed all the equipment you need. Now, it is time to look at the basics of photography as applied to the method: what are the general set-ups, and how do you … Continue reading

Posted in Digitizing, photogrammetry | 6 Comments

Photogrammetry tutorial 1: equipment

Taking photos for photogrammetry can be dead simple, or it can be a fiendishly difficult task. It all depends on the specimen you want to get a 3D model of. Here’s a not-so-short guide on how to ensure that your … Continue reading

Posted in 3D modeling, Digitizing, How to, photogrammetry | 13 Comments

PHOTOGRAMMETRY IN PALEONTOLOGY – A PRACTICAL GUIDE

While I was on holiday my latest paper finally went online. It is a joint effort with Oliver Wings that details some good approaches for photogrammetric 3D modelling specimens. You can find the PDF at this link. The web version … Continue reading

Posted in 3D modeling, AMNH, Conferences, DigitalSpecimen 2014, Digitizing, Dinopics, Dinosaur models, How to, Khaan, Maniraptora, Open Access publishing, Oviraptorosauridae, papers, photogrammetry, photography, Theropoda | 5 Comments

My awesome digiS project: mass digitizing sauropod bones

Last year I applied for a grant from the Senatskanzlei Berlin for the 2015 digiS funding programme. digiS is a state-wide (i.e. Berlin-wide) programme intended to coordinate and support digitizing efforts.They have an about page on their website that is … Continue reading

Posted in Berlin, Dicraeosaurus, digiS, Digitizing, Dinosauria, Giraffatitan, Kentrosaurus, Ornithischa, photogrammetry, Sauropoda, Sauropodomorpha, Stegosauria | 12 Comments