Production of Three Dimension Model by Using Agisoft and Matlab Program

Abstract

Abstract- Close range photogrammetry is one of the most important subjects in geomatics engineering, therefore a study has been prepared in this subject. As 3D modelling from digital photographs has advanced, many programmers have emerged to analyze digital images for technical applications that require high resolution. for this purpose, this study depends on two methods to calculate the 3D coordinates, by using a number of prepared Matlab program. The second method depends on Agisoft to produce 3D modelling and calculate 3D coordinates. This study discusses the positional accuracy obtained from the Matlab and chose the optimal method from the methods that is in this project. The study area was chosen as "Al-Mustafa Mosque", a digital photo was taken for the model using Nikon d750 camera. The total station instrument was used to measure the position of the exposure stations and ground control points. After calculating the Root Mean Square Error (RMSE) for the two methods, it is concluded that the second method gives a higher accuracy (±0.08817) than the first method which is represented by the use of direct linear transformation (±0.46423), which is the accuracy of the coordinates of the points fixed on the model.