A Metric for Evaluating the 3D Reconstruction of the Length of Artificially Generated Electric Arcs

Studies with artificially generated electrical arcs includes the variation of the length of the arc as an important information. In this paper, it is done a 3D reconstruction (by 3D-snake) followed by the measurement of the length of the arc in evolution based on stereo pairs of images. The accuracy of such measurement depends strongly on the halting of the iterative relaxation process that adjust the 3D-snake and the key aspect to make such decision is detecting when each projection of the 3D-snake matches special features in the pair of images. For this sake, this paper proposes an strategy based on the knowledge of projection matrices of the cameras and tables named here as Maps of Distances (MDs) which are obtained by image processing. KeywordsElectric Arc; Computer Vision; Image Processing.