Comparison of 3D Photogrammetric Modeling Methods

Abstract

Close range photogrammetry is a commonly used process in the 3D modeling of existing structures. Two modeling methods have been developed for photogrammetric processing. One of them is the photogrammetric assisted CAD editing. The other one is the application of TIN surface based on dense point cloud. I examined the two methods by the 3D modeling of a structure with non-regular surface. My paper studies and compares the two modeling methods and lists advantages and disadvantages, as well as the expected accuracy.