Estimation of plastic marine debris volumes on beaches using unmanned aerial vehicles and image processing based on deep learning

Catégorie : Détection et Caractérisation
Date :19 juin 2020
Avis TSC : Les applications pour monitorer la pollution plastique se développent plus vites que l’amorce de changement dans le modèle économique qui génère ces déchets. Voici une belle application à base de drone volant et de caméra avec un système expert de reconnaissance. L’avantage souligné par les auteurs est l’estimation des volumes afin d’organiser le nettoyage. Lorsque la pollution plastique aura disparu, le système expert pourra être recyclé en détection du niveau de bronzage des touristes afin de planifier les commandes de crèmes solaires.
Kako, Shin’ichiro; Morita, Shohei; Taneda, Tetsuya.
Marine pollution bulletin : 155, 111127.
Plastic marine debris (PMD) is of global concern. To help address this problem, a novel approach for estimating PMD volumes using a combination of unmanned aerial vehicle (UAV) surveys and image processing based on deep learning is proposed. A three-dimensional model and orthoscopic image of a beach, constructed via Structure from Motion software using UAV-derived data, enabled PMD volumes to be computed by edge detection through image processing. The accuracy of the method was verified by estimating the volumes of test debris placed on a beach in known sizes and shapes. The proposed approach shows potential for estimating PMD volumes with an error of <5%. Compared with subjective methods based on beach surveys, this approach can accurately, rapidly, and objectively calculate the PMD volume on a beach and can be used to improve the efficiency of beach surveys and identify beaches that need preferential cleaning.