Parallelization of a new embedded application for automatic meteor detection

Abstract

This article presents the methods used to parallelize a new computer vision application. The system is able to automatically detect meteor from non-stabilized cameras and noisy video sequences. The application is designed to be embedded in weather balloons or for airborne observation campaigns. Thus, the final target is a low power system-on-chip (< 10 Watts) while the software needs to compute a stream of frames in real-time (> 25 frames per second). For this, first the application is split in a tasks graph, then different parallelization techniques are applied. Experiment results demonstrate the efficiency of the parallelization methods. For instance, on the Raspberry Pi 4 and on a HD video sequence, the processing chain reaches 42 frames per second while it only consumes 6 Watts.Comment: in French language, COMPAS 2023 - Conf{\'e}rence francophone d'informatique en Parall{\'e}lisme, Architecture et Syst{\`e}me, Jul 2023, Annecy (France), Franc