A novel 3D geometric object filtering function for application in indoor area with terrestrial laser scanning data

Abstract

In measurement technology, besides the photogrammetric method, terrestrial laser scanning and modeling technology are densely used in architectural documentation and cultural heritage studies. In the perception of engineering perspective, these two methods are independent of each other. However, these two methods can be combined with each other in the essential parts of architectural documentation and cultural heritage studies. While one is implementing these applications, the working procedure is so significant that if the amount of data increases, time consumption reaches higher levels. These two methods are compulsorily optimized for working in a collaborative way, especially in the large-scale studies. This necessity leads to the application of two types of integration. One of them is the hardware integration, and the other one is the data integration. In this study, a new data integration model is suggested for the operating processes in architectural documentation and cultural heritage studies, with the terrestrial laser scanning that uses new data production methods of photogrammetry. The mathematical model and algorithm in the presented integration model is programmed in MatLAB 7.0 and is tested with the original data set. At the end of the study, results are discussed and comments are made so that the advantages and disadvantages of the functional model of the algorithm are presented. The functional model is explained, benefiting from the object-oriented programming languages in the MS Windows system. (C) 2009 Elsevier Ltd. All rights reserved.