Error-aware construction and rendering of multi-scan panoramas from massive point clouds
Tipus de documentArticle
Condicions d'accésAccés obert
Obtaining 3D realistic models of urban scenes from accurate range data is nowadays an important research topic, with applications in a variety of fields ranging from Cultural Heritage and digital 3D archiving to monitoring of public works. Processing massive point clouds acquired from laser scanners involves a number of challenges, from data management to noise removal, model compression and interactive visualization and inspection. In this paper, we present a new methodology for the reconstruction of 3D scenes from massive point clouds coming from range lidar sensors. Our proposal includes a panorama-based compact reconstruction where colors and normals are estimated robustly through an error-aware algorithm that takes into account the variance of expected errors in depth measurements. Our representation supports efficient, GPU-based visualization with advanced lighting effects. We discuss the proposed algorithms in a practical application on urban and historical preservation, described by a massive point cloud of 3.5 billion points. We show that we can achieve compression rates higher than 97% with good visual quality during interactive inspections.
CitacióComino, M., Andujar, C., Chica, A., Brunet, P. Error-aware construction and rendering of multi-scan panoramas from massive point clouds. "Computer vision and image understanding", 30 Setembre 2016, p. 1-12.
Versió de l'editorhttp://www.sciencedirect.com/science/article/pii/S1077314216301461