Overview
========

This section explains how to build augmented reality pipelines based on ArUco Markers technology for various use cases.  

The OpenCV library provides a module to detect fiducial markers into a picture and estimate their poses (cf [OpenCV ArUco tutorial page](https://docs.opencv.org/4.x/d5/dae/tutorial_aruco_detection.html)).

![OpenCV ArUco markers](https://pyimagesearch.com/wp-content/uploads/2020/12/aruco_generate_tags_header.png)

The ArGaze [ArUcoMarkers submodule](../../argaze.md/#argaze.ArUcoMarkers) eases markers creation, markers detection and 3D scene pose estimation through a set of high level classes.

First, let's look at the schema below: it gives an overview of the main notions involved in the following chapters.

<!-- ![ArUco markers pipeline](../../img/aruco_markers_pipeline.png) -->

To build your own ArUco markers pipeline, you need to know:

* [How to setup ArUco markers into a scene](aruco_markers_description.md),
* [How to describe scene's AOI](aoi_description.md),
* [How to load and execute ArUco markers pipeline](configuration_and_execution.md),
* [How to estimate scene pose](pose_estimation.md),
* [How to project AOI into camera frame](aoi_projection.md),
* [How to define an AOI as a frame](aoi_frame.md)

More advanced features are also explained like:

<!-- * [How to script ArUco markers pipeline](advanced_topics/scripting.md) -->
* [How to calibrate optic parameters](advanced_topics/optic_parameters_calibration.md)
<!-- * [How to improve ArUco markers detection](advanced_topics/aruco_detector_configuration.md) -->