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 CM2

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 cm2

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: 100-101 (18.19 MT) Y 102-103 (14.67 MT).

ORIENTATION of non-metric stereo pairs

 

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

DIGITAL PHOTOGRAMMETRIC WORKSTATION

STEREOMETRIC PROSTEREOMETRIC 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 unitNuVISION 60GX

Transmitter to the glass

CRYSTAL EYES

Track-BallMouse

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 NETWORKAugust-September 2000

Features

• total Station Topcon GTP 1002

• 175 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 ANKARAPHOTOGRAMMETRIC 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 1:200-1:300

43 PLOTTED MODELS