ArUco: Augmented Reality library from the University of Cordoba. ArUco is a minimal C++ library for detection of Augmented Reality markers based on OpenCv exclusively. It is an educational project to show student how to detect augmented reality markers and it is provided under BSD license. INTRODUCTION: The library relies on the use of coded markers. Each marker has an unique code indicated by the black and white colors in it. The libary detect borders, and analyzes into the rectangular regions which of them are likely to be markers. Then, a decoding is performed and if the code is valid, it is considered that the rectangle is a marker. The codification included into the marker is a slighly modified version of the Hamming Code. It has a total a 25 bits didived in 5 rows of 5 bits each. So, we have 5 words of 5 bits. Each word, contains only 2 bits of real information, the rest is for and error detection/correction (error correction is yet to be done). As a conclusion, a marker contains 10 bits of real information wich allows 1024 different markers.

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  1. Collins, Toby; Bartoli, Adrien: Infinitesimal plane-based pose estimation (2014)