Stereo on PC

WE CAN OBSERVE THAT THE PLOTTING OVERLAYS THE IMAGE MANTAINING THE PERSPECTIVE RECTIFICATION AND PLOTTING OF SINGLE IMAGE THE ORIENTATIÓN CAN BE ACHIEVED: BY CONTROL POINTS BY KNOWN DISTANCES BETWEEN COUPLES OF POINTS

PHOTOGRAPH TAKEN WITH A SEMI-METRIC CAMERA, FORMAT 6 X 6 CM 2 PHOTOGRAPH OF THE DIGITAL CAMERA MARK IMPRESSED ON THE PLATE BY THE RESEAU MARKING THE CORNER Interior Orientation DIGITAL CAMERA: THE CORNERS OF THE IMAGE METRIC OR SEMIMETRIC CAMERA: THE FIDUCIAL MARKS

metric camera, 23 x 23 cm 2

RELATIVE ORIENTATION

For facade plotting, in comparison to the aerial images, we will change the coordinate (y) with the elevation of the points (z). We will keep XZ plane parallel to the working plane. In case that it is not as such: IN THIS SYSTEM THE Y AXIS IS NOT PERPENDICULAR TO THE FACADE Y AXIS IS PERPENDICULAR TO THE FACADE. WE GOT THE SUITABLE DATUM Rotate the system about vertical axis to make XZ plane parallel to the façade

OUTPUT OF THE ORIENTATION PROCESS

All the types of points used for the orientations

the marked points define two vectors with known lenght: (18.19 MT) Y (14.67 MT).

ORIENTATION of non-metric stereo pairs

Marrakesh – Bab Agnau (courtesy of School of Arabic Studies)

DIGITAL PHOTOGRAMMETRIC WORKSTATION STEREOMETRIC PRO by Galileo Siscam. 4)

Topics: HARDWARE DEVICE FOR STEREO VISION PLOTTING WITH STEREOMETRIC PRO AN ARCHITECTURAL EXAMPLE: THE AUGUSTUS’ TEMPLE IN ANKARA TEST ON AERIAL TRIANGULATION CONSTRUCTION OF A DEM WITH DEM MANAGER FEATURES : EVALUATUION AND CONCLUSIONS

HARDWARE FOR STEREO- VISION Control unit NuVISION 60GX Transmitter to the glass CRYSTAL EYES Track-Ball Mouse

STEREOVISION

PLOTTING WITH STEREOMETRIC PRO – Galileo Siscam DIGITIZED IMAGES CONTROL NETWORK CAMERA PARAMETERS INPUT DATA stereo coverage scanning at suitable resolution Suitable quantity and distribution Accuracy Focal distance Coordinates of fiducial marks Distortion CALIBRATION CERTIFICATE PHOTOGRAMMETRIC SURVEY GEODETIC SURVEY

CONTROL NETWORK August-September 2000 Features total Station Topcon GTP control points plan-altimetric accuracy ± 0.5 cm Adjustment Software : RETE 11 theodolite stazions

Features Rollei 6008 semi-metric 6X6 52 images Focal length: 40,37 mm average scale 1:200 \ 1:300 AUGUSTUS TEMPLE IN ANKARA PHOTOGRAMMETRIC SURVEY August-September 2000

INPUT DATA ACCURACY OF THE CONTROL POINTS ±1 CM IMMAGE SCANNING AT 1200 DPI (Dot Per Inch) Project set-up: AUGUSTUS’ TEMPLE IN ANKARA PIXEL size 21 Micron 52 IMAGES AVERAGE SCALE 1:200-1: PLOTTED MODELS