期刊名称：Archiwum Fotogrametrii, Kartografii i Teledetekcji
印刷版ISSN：2083-2214
出版年度：2018
卷号：30
DOI：10.14681/afkit.2018.004
语种：English
出版社：Main Board of Association of Polish Surveyors
摘要：In the present study attempts to automatically extract trees from image which was created from points cloud representing high vegetation. For this purpose the script was written in MATLAB. The idea of the operation is based on the thesis that on the digital image trees shape in the upper floors is similar to circles. To detect trees the transform Hough was used - one of the effective methods to detect shapes in computer vision. The research was conducted on data from airborne laser scanning,which included the area of the Rakowicki cemetery in Krakow. In order to check the number of trees,a manual vectorization (indication of the trees tops) on the orthophotomap was made. However this measurement is sub-optimal,but allowed to assess the correctness of the HT algorithm.
其他摘要：W niniejszej pracy podjęto próbę automatycznego wyodrębnienia drzew z chmury punktów na podstawie utworzonego obrazu wysokiej roślinności z przefiltrowanych danych laserowych. W tym celu został napisany skrypt w programie MATLAB. Idea jego działania opier
