Software

At CHILI Lab, we research innovative use of computer-based technologies for learning and teaching. To this end, we have developed over the years a solid set of open-source libraries that may be useful to a large audience.

This page lists the one that have been officially released, and are ready for use.

You can browse our other projects on GitHub.

qml plugins

We have written and are actively using a number of small, powerful and reusable software components, in the form of QML plugins for our QtQuick applications; most of them are supported on desktop and Android:

 

libdots, High-Accuracy 2D Localization with Structured Patterns

   Please follow: chili.epfl.ch/libdots

Chilitags, Robust Fiducial Markers for Augmented Reality

 

chilitags is a C++ cross-platform software library for the detection and identification of 2D fiducial markers. Their purpose is to be printed and placed on objects from the real world, to form the basis or Augmented Reality (AR) applications. Using a camera, the position of the tagged objects can be acquired by a computer and used to virtually display information on them.

Chilitags were developed internally for projects like Metroscope or TapaCarp. The following videos show real applications of Chilitags for experiments in tangible learning or paper-based interfaces. Another demonstration video shows how chilitags deal with a worst case scenario in an unevenly lit, large scene.

Language: C++

Platforms: Linux, Windows, MacOSX

Main dependencies: OpenCV

License: LGPL3

[Documentation]  [Get the source code (GIT)

[ Get the source (zip file)]  [Download pre-rendered tags]

Other open-source projects

agportal

CHILI’s Activity Graph (to be deployed as a CakePHP app)

Visit it on GitHub

AR.js

Visit it on GitHub

chiligeom

[superseeded by chilitags!] 2D/3D geometry helpers: projective transformation, pose estimation…

Visit it on GitHub

chilitags

Robust Fiducial Markers for Augmented Reality

Visit it on GitHub

chilitags-testdata

Data for the automated test of chilitags

Visit it on GitHub

cowriter-letters-extractor

A Qt app that helps with the extraction of subparts of images

Visit it on GitHub

cowriter-trajectory-generator

A Qt app that reads a SVG file and generate a 2D trajcetory suitable for execution on a robot

Visit it on GitHub

eTapaCarp

TapaCarp Online Web App

Visit it on GitHub

hoap3_description

ROS package that contains HOAP3 robot URDF and meshes. Based on EPFL’s RobotToolKit models.

Visit it on GitHub

hoap3_moveit_config

ROS MoveIt configuration for HOAP3

Visit it on GitHub

hoap3_write

A set of scripts to help HOAP3 to write letters for the CoWriter project. Based on the ROS toolset.

Visit it on GitHub

jsBasicSetup

Basic javascript app setup, using CoffeeScript, Grunt, RequireJS and Mocha (Unit testing)

Visit it on GitHub

minimalkb

A SQLite-backed minimalistic knowledge based for robotic application. Mostly KB-API conformant.

Visit it on GitHub

nao_camera

ROS driver for Nao cameras

Visit it on GitHub

pykb

A Python API to access a KB-API conformant knowledge base

Visit it on GitHub

ros4nao

Helpers to compile and distribute ROS for Aldebaran’s Nao

Visit it on GitHub

ros_markers

ROS wrapper for the EPFL’s chilitags library

Visit it on GitHub

tangible-meteor

Tangible apps with Meteor.

Visit it on GitHub

videoTracker

A c++ application tracking Chilitags in a .avi video and logging their position at each frame. Used as a post-analysis tool for an eye-tracking experiment.

Visit it on GitHub

websocketTracker

A very simple example of a cpp websocket communicating with a web page.

Visit it on GitHub