Ergün, Bahadir 
INTEGRATION OF DIGITAL PHOTOGRAMMETRIC OBTAINED DATA WITH 
AUTOCAD TO CAR SURFACE MODEL 
Bahadir Ergun, Sitki Kulur 
Istanbul Technical University, Department of Geodesy and Photogrammetry 
bergun@srv.ins.itu.edu.tr 
skulur@srv.ins.itu.edu.tr 
Working Group V/2 
KEY WORDS: Digital Photogrammetry, Close Range Photogrammetry, CAD 
Aim of this entire work is to establish a fast and adequate 3D- object model with real time measuring opportunities. The 
result is a real 3-D object model at digital environment. A car and and a propeller surface has been selected as objects to 
be analyzed and all the physical characteristics of this models have been determined. In this study, KODAK DCS 200 
and PICTRAN D and PICTRAN B digital photogrammetric software have been used. Then these photogrammetrically 
obtained 3D data that was posed, converted into the solide model in 3D STUDIO MAX 2.0. 
1. INTRODUCTION 
The requirement for an application of photogrammetry in the industry is a workstation with necessary hardware and 
software .. After having this equipment, right geometry of convergent multistation images can be obtained. Aim all of 
this works is to establish a fast and adequate 3D-object model with real time measuring opportunities. The result is a real 
3-D object model at digital environment. We are able now to analyse all the physical characteristics of this model. 
2. GEODETIC MEASUREMENTS 
A hundred additional points are used for whole study . 40 of them have control points for photogrammetric outer 
orientation. 60 of them have been used for measuring photogrammetric methods and interpolation of these points for 
defining the surface.(Renault 11) On the car surface all points have been significated at least three additional points every 
part of surface. Afterwards measuring net have been defined with four polygon points. T2002 electronic theodolite has 
been used spatial resection from at least two polygon points with one set vertical and horizantal angul. Distance 
measuring were used only between polygon points for net scaling with DI3000 from WILD. For one set was being 
saving time for geodetic measurements. After geodetic measurements, error for instrument have been calculating for 
every spatial resection triangle with LSM ( least square methods). In this study, maximum erros were 2mm in xy 
direction and 2mm in z direction which enough for orientation and real visualization car surface model. 
  
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Figure:1 Geodetic Measurement Method 
  
International Archives of Photogrammetry and Remote Sensing. Vol. XXXIII, Part B5. Amsterdam 2000. 211