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  • Yayın
    A point cloud filtering method based on anisotropic error model
    (John Wiley and Sons Inc, 2023-12) Özendi, Mustafa; Akça, Devrim; Topan, Hüseyin
    Many modelling applications require 3D meshes that should be generated from filtered/cleaned point clouds. This paper proposes a methodology for filtering of terrestrial laser scanner (TLS)-derived point clouds, consisting of two main parts: an anisotropic point error model and the subsequent decimation steps for elimination of low-quality points. The point error model can compute the positional quality of any point in the form of error ellipsoids. It is formulated as a function of the angular/mechanical stability, sensor-to-object distance, laser beam's incidence angle and surface reflectivity, which are the most dominant error sources. In a block of several co-registered point clouds, some parts of the target object are sampled by multiple scans with different positional quality patterns. This situation results in redundant data. The proposed decimation steps removes this redundancy by selecting only the points with the highest positional quality. Finally, the Good, Bad, and the Better algorithm, based on the ray-tracing concept, was developed to remove the remaining redundancy due to the Moiré effects. The resulting point cloud consists of only the points with the highest positional quality while reducing the number of points by factor 10. This novel approach resulted in final surface meshes that are accurate, contain predefined level of random errors and require almost no manual intervention.
  • Yayın
    Wealth management trends in the world
    (PressAcademia, 2020-07-30) Danon, Murat; Teker, Suat
    Purpose- The purpose of this research is to explore and identify the prevailing trends in the wealth management sector on a global scale. Methodology- As the main aim of the research is to identify the prevailing trends in the wealth management sector on a global scale, we have collected various statistical data sets regarding the various trends that are already established within the sector. Furthermore, we have also carried out interviews with two private bankers, one wealth management executive, and one wealth management client in order to get a substantial amount of insight on where the industry is headed. Findings- The wealth management sector has seen a rapid growth over the course of the last two decades but is being heavily impacted by the COVID-19 crisis. Conclusion- New trends look to impose new rules in the wealth management sector. COVID-19 and the existing economic troubles together may result in a significant slowdown in sectoral growth while a consolidation era for wealth management companies are commonly expected. Meanwhile, a dramatic change in most clients’ mindset and rapid adoption of more technology in the sector helping firms to reduce operational costs are foreseen.