Voir la source de MicMacRoom Tutorial: 03 Pierrerue

[[Image:picto-liste.png|25px|link=Tutorials]] [[MicMacRoom Tutorials|Tutorials index]]
==Description==
In this tutorial, we will approach general concepts, basics tools, and how to process an image dataset with MicMacRoom in order to obtain a georeferenced orthophoto. The integration of MicMac in the Meshroom graphic interface can be downloaded following the tutorial at <code>https://github.com/alicevision/MeshroomMicMac</code> <br>. This tutorial is based on the content of the [[Pierrerue tutorial]].

==Download==
You can find this dataset at <code>https://micmac.ensg.eu/data/pierrerue_dataset.zip</code> <br>
Once you have downloaded it, you have to unzip the ".zip" archive.

==Tutorial==
===From the set up of the images to the visualization of relative orientation===
With this pipeline, 
Open the 'File' tab in MicMac and launch a new pipeline with the template "pierrerue_part1". Check if the pipeline is empty. If not, you can erase the old dataset with "Remove All Images". Don't forget to save your new project: MicMac will give to your project a default name that you cannot change. Then drop all your images and dataset on the file of the project, and drop at least one image on the interface.
Then, press on the start button, you should obtain a .ply file in the Apericloud folder. It is possible to open this file with a software like CloudCompare to visualize the relative orientation.
===Set up the images into the coordinates system of the support points===
This step cannot be completed with MicMac Meshroom, you have to follow instructions at <code>https://micmac.ensg.eu/index.php/Pierrerue_tutorial#Measurement_process</code> <br>. Then, launch a new pipeline with the template "pierrerue_part2". It will first run the computation of 3D similarity and open a window where you have to validate the points left, following the same method as for SaisieAppuisInitQT. When this step is completed, you can launch the end of the pipeline, which will compute absolute orientation and final adjustment.
The third pipeline, namesd "pierrerue_part3" allows to create a 3D mask and launch 3D reconstruction.