SUG541 - Advanced Photogrammetry - Steps Involved in Using Stereo Aerial Triangulation Software

SUG541ADVANCED PHOTOGRAMMETRY

TITLESTEP INVOLVED IN USING STEREO AERIAL TRIANGULATION SOFTWARE

1. Launch Stereo AT software 2. Create new model

3. File Name Put file name to create 4. Left Image browse for the left image 5. Right Image browse for the right image. 6. If the image is mistakenly selected for the left or right, the user can use Swap Images to change from Left to right and otherwise 7. Create

INTERIOR ORIENTATION1. START INTERIOR PROCESS WITH LEFT IMAGE AND THEN RIGHT IMAGE

2. KEY IN THE CAMERA INFORMATION

INTERIOR ORIENTATION3. Click fiducial point at every tip of the image.

RELATIVE ORIENTATION1. After finished the Inner Orientation for the both left and right. User has to do relative process for the selected model. 2. Select Orientation > Absolute

RELATIVE ORIENTATION3. Select tie points on the image. Minimum 6 points with numbering for each model

RELATIVE ORIENTATION

4. Click any position on the model 5. Do the process until RMS error in acceptable range limitation 6. Principal Point of Autocollimation

RELATIVE ORIENTATION

7. After all points have created, index window will appear

GROUND CONTROL POINT PROCESS1. After finished the absolute orientation process, user has to perform a GCP. 2. Identify the GCP position for each model and create file for control point

3. Key in all the information (X, Y, Z) for each GCP

GROUND CONTROL POINT PROCESS

4. Click the GCP point on the model. Refer to the image given which show the position of the GCP 5. After finished GCP process for 6 GCPs, close the window

PREPARATION FOR ADJUSTMENT1. Export Adjustment to Run Adjustment in AeroSys 2. Export file in .ptb format.

PREPARATION FOR ADJUSTMENT2. Open the file that already exports in .ptb format before 3. Edit the file until same with below format that show below 4. Save as the file as .ctl format

ADJUSTMENT USING AEROSYS SOFTWARE

1. Launch AeroSys. Open a project 2. For the current project, fill the appropriate information at the number 1 3. And for the number 2 load the saved .ctl file. And Next

ADJUSTMENT USING AEROSYS SOFTWARE4. After that, click Next button. Fill the information on Photocoordinate Type tab

5. At Block Configuration tab, load the file in .ptb format

ADJUSTMENT USING AEROSYS SOFTWARE

5. Then, Fill the information on Camera Data Base tab 6. After all, click Save and OK

ADJUSTMENT USING AEROSYS SOFTWARE

8. Click RelOrn to run the project. RelOrn window will appear 9. Click Run on the below

ADJUSTMENT USING AEROSYS SOFTWARE

11. The processing result will appear. 12. Click Next and Run until Mean Predicted Accuracy appear. 13. If there are problem on Relative process, Mean Predicted Accuracy cannot done. 14. Please recheck the relative process so that Mean Predicted Accuracy

ADJUSTMENT USING AEROSYS SOFTWARE

12. After the Mean Predicted Accuracy is acceptable, close the window

ABSOLUTE ORIENTATION1. Once the Aerosys adjustment is finished, load back the Stereo AT software. 2. Import the data that save in AeroSys 3. After the done importing data, Absolute is completed

DIGITIZING USING DVP SOFTWARE1. Open DVP process. File and Open Image 2. Create vector layer at vector manager for different type of object that want to digitize. Road, DEM and building

DIGITIZING USING DVP SOFTWARE3.Using 3D view, start digitizing 4. Transfer to AutoCAD