Digital Documentation and Training

In this tutorial, we are focusing on 3D imaging or photogrammetry, We will delve into how it works, a bit of its history, show some practical examples and walk us through the process. Along the way, we will look at some of the gotchas and the essentials that you will need to get started, which are surprisingly minimal.

Photogrammetry is the science of making measurements from photographs, or making photographs measurable. Common results from photogrammetry include:

- Orthophotos. An orthorectified image is geometrically corrected so that the scale is uniform: the photo has the same lack of distortion as a map. A digital orthoimage is created from several photographs mosaicked to form the final image.

- 3D models. Using the same photo series, it’s possible to create a complete 3D model of an object, place, or even a person.

- Digital Elevation Model. A digital elevation model (DEM) is a digital model or 3D representation of a terrain's surface, created from terrain elevation data.

- Animation. Videos can be made directly from interacting with the models in a variety of software applications.

We’re going to take a look at some amazing advances in photography and software that makes creating measurable photos easy and incredibly useful.

This is the first of several tutorials. We'll add links as they come out.

Thanks for watching, comments welcome!

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Digital Documentation and Training

Michael Ashley

a channel dedicated to interesting and useful digital documentation for heritage and archaeology.

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