Mobile augmented reality on electric circuits

This paper presents an implementation of a mobile augmented reality system, which was designed to help the understanding of resistive electric circuits. The system employs a smartphone, a measuring instrument, and an electric circuit built on a breadboard. The smartphone captures a photograph of the circuit and receives data from the measuring instrument, which it uses to generate a layer of augmented reality information that is merged with the original image and displayed on the screen of the smartphone. In order to display augmented reality on a real circuit, it was developed a markerless method to identify resistors from a photograph of the circuit and set virtual objects over it. The results showed that the AR system is stable enough to be considered as a good first step in the development of a markerless AR system which works on real resistive circuits.