1. Developing 3D models from photos Presented By: Mohamed El said Gamal Mohamed By: Jens Vedel Web Address: http://www.architectureweek.com/articles/tools_articles.html Topic Number: 139 Date: 23 January 2002 Date: 23 January 2002

2. Developing 3D models from photos

3. When is a picture worth much more 1000 words ? When it can be converted directly into 3D model. Developing 3D models from photos 3D Model is the widest way to persuade the client to accept the project. We all know that making 3d models not easy like seeing it

4. Making 3D models of historic buildings and cultural relics is more difficult than any new project because of the huge details around the building. Developing 3D models from photos We now can convert our photos into 3D models by using the latest versions of photogrammetry computers software such as Photo Modeler.

5. The first step : is to calibrate a digital camera using the Photo Modeler's calibrator program. This software computes the camera's parameters including focal length, lens distortion, image aspect ratio, and principle point. This software computes the camera's parameters including focal length, lens distortion, image aspect ratio, and principle point. Developing 3D models from photos

7. The second step : is to import the overlapped photos into Photo Modeler. Then mark features on the photographs using photo Modeler's Point,line and edge tools. Developing 3D models from photos

9. The third step : we use the referencing functions, in photo modeler. The third step : we use the referencing functions, in photo modeler. We can matching up points according to the photos. Developing 3D models from photos

11. The forth step : now photo modeler is ready to process your camera and referencing data. Using the ( process ) button in the menu. Photo modeler adjusts your input data and creates 3D point data to produce an accurate 3D model. Developing 3D models from photos

13. Now you can view,zoom, rotate or measure your 3D model in photo modeler’s ( 3D viewer ). 3D viewer can allows you to do any thing with your new 3d model you can view points or edges only. Developing 3D models from photos

15. The fifth step : now we can finish our 3D model by making surfaces according to the points, lines and the photos. To see the result you must select the surface view button. Developing 3D models from photos

17. The last step : is to finish the 3D model by applying materials according to points, lines, edges and the original photos. Now we can export or finally 3D model to our CAD, Animation or Rendering Programs. Developing 3D models from photos