Patrick Letourneau.Sometimes the best way to create a new 3d asset is to capture it in the real world. But what if you don't have any fancy scanning equipment? Well, as it turns out, you can get great digital capture using just yourself.

Patrick Letourneau.Hi, I'm Patrick Letourneau 3d artists, photogrammetry, NIST, and secret crime fighter. You've probably heard the term photogrammetry before, but maybe you thought it was a bit too advanced or complicated to try yourself. Well, I'm here to show you the technique for capturing incredible 3d scans of the world around you. Using tools you probably already have at your fingertips. Photogrammetry is the science of making measurements from photographs. Using multiple input images. Software is able to infer super accurate three-dimensional models that you can put to use better yet. You don't need expensive equipment or complicated software to get started. Just your cell phone and some supplies from around the house. In this tutorial, you'll learn how to set up objects for capture and adjust them into software, how to clean up and simplify your model texturing and baking normal maps. How to export the model into cinema 4d and Redshift, and the difference in quality between a cell phone scan and a commercial scanning setup. Before we begin, don't forget to grab the project files in the description below so you can follow along. Let's get started.

Patrick Letourneau.So here's my setup. Uh, as you can see, it's just a shoe on a tripod. I've got a toilet paper roll there to elevate the model. This lets me get underneath it to shoot the sole. So you want to be shooting in a camera app that allows you to control exposure and ISO and things like that. Uh, you don't want to just use your straight up camera app because the exposure will usually change between images and you can't set focus separate from exposure and a lot of the default camera apps. Uh, so here I'm using pro app. This lets me get TIFF images. You want uncompressed images of possible, um, as the compression and JPEG will lower your detail a little bit, but, um, that can be a more advanced step. Once you've done your first practice runs, it's probably fine to use JPEG. So a DSLR makes us a lot easier.

Intro

How to take pictures

Example of a good set of photos for photogrammetry

Automatic reconstruction

Reconstructing the model

Reconstruction depth

Removing edges

Exporting your model

Photogrammetry recap

Hot to take pictures for photogrammetry

Standard reconstruction

Augmented reconstruction

Live reconstruction

What is photogrammetry?

Video recording

Robotics and autonomous driving

Flexibility in resolution

Occlusions

Physics process of getting images

Human perception

Applications

Least-squares problem

Next lecture

Intro

What is Photogrammetry?

What do you need to get started scanning?

The capturing process.

Processing scans.

AR with Adobe Aero and Dimension.

Bring Scans into VR and the Metaverse.

Outro

Intro

Taking photos from up high

Saving the point cloud

Importing Mesh

Introduction

Getting Meshroom

Elephant Demo

Meshmixer

On Location (2nd demo)

Lion Extraction

3D Print

Wrap

Photogrammetry

Photogrammetry Capture

Capturing Images

Point Clouds

Mesh processing

Conclusion

What is photogrammetry?

History of Photogrammetry

How Does Photogrammetry Work?

Conclusion

Introduction

Data Pipeline

Step 1 - Feature Extraction

Step 2 - Feature Matching

Step 3 - Structure from Motion

Step 4 - Depth Map Estimation

Step 5 - Dense Point Cloud (Meshing + Texturing)

Summary

Intro

How does photogrammetry work?

What kind of camera can be used?

What can we do with photogrammetry?

When to use photogrammetry?

How do we use photogrammetry in geoscience?

Conclusion

What is a 3D Model?

What is photogrammetry

Why use drone photos?

Tips for aerial photogrammetry

Capture images at different altitudes and angles

Land Surveying

Inspection services

Agriculture

Public Safety

Conclusion