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