題目：Realistic benchmarks for point cloud data management systems

主講人：Prof. Dr. Peter Van Oosterom

時間：3月10日下午14:30

地點：88858cc永利官网220報告廳

内容介紹：

Lidar, photogrammetry, and various other survey technologies enable the collection of massive point clouds. Faced with hundreds of billions or trillions of points the traditional solutions for handling point clouds usually under-perform even for classical loading and retrieving operations. To obtain insight in the features affecting performance the authors carried out single-user tests with different storage models on various systems, including Oracle Spatial and Graph, PostgreSQL-PostGIS, MonetDB and LAStools (during the second half of 2014). In the summer of 2015, the tests are further extended with the latest developments of the systems, including the new version of Point Data Abstraction Library (PDAL) with efficient compression. Web services based on point cloud data are becoming popular and they have requirements that most of the available point cloud data management systems cannot fulfil. This means that specific custom-made solutions are constructed. We identify the requirements of these web services and propose a realistic benchmark extension, including multi-user and level-of-detail queries. This helps in defining the future lines of work for more generic point cloud data management systems, supporting such increasingly demanded web services.

作者簡介：

Peter van Oosterom，荷蘭代爾夫特理工大學(Delft University of Technology, The Netherlands)教授；空間數據庫、地圖綜合、三維地籍、互操作GIS等領域專家；ISO/TC 211 Geographic information/Geomatics的牽頭人，國際著名學術期刊《Computers &Geosciences》副主編，國際測量師聯合會（FIG）“三維地籍（3D-Cadastres）”聯合工作組主席。