'. Istanbul 2004
rindow size that
input for GET
dows in left (for
ible to compute
e two windows.
1atrices) of left
0F which is a
d , maximum
ind since sensor
dinates used in
pace coordinate
t in size of the
|. some or all of
ted point clouds
; from a plate
erent views
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B3. Istanbul 2004
6.2 3D model of a cellphone
Figure 5. Two selected images taken from a cellphone with a
small box as calibration object
ED
x
e
i
Figure 6. Point cloud of surface of cellphone after manual
filtering of gross errors
6.3 modeling surface of an egg
Figure 7. Three Images of an egg and an small box as
calibration object
Figure 9. Final
3d point cloud of
a portion of egg
surface
Figure 8. One mm contour
lines of egg surface created
from final point cloud
after filtering gross errors
7. CONCLUSION
The software test results shows that quality of object point
cloud in reference coordinates system greatly depends on
precision of image matching process and finding exact
conjugate points ,so it is necessary the object surface to be
textured well . in above mentioned examples (except cellphone)
the surface of objects were coloured to form a good texture on
the object surface to support image matching .
This also can be done by a video projector that projects a
random noise image on the object surface.
To check precision of geometric quality in object space ,some
distances on the created point cloud and on the object compared
and it proved that if camera calibration results and matching
process be accurate enough , these results are also reliable.
8. REFERENCES
References from Books :
Tony C.T. Tang ,Digital Image Correlation
References from Websites :
A. Malian, F.A. Van del Heuvel ,A. Azizi ‚A Robust
Photogrammetric System For Wound Measurement
Ahmed Elkasher , Mohammed Elghazali ,Ashraf Sayed ,Yasser
Elmanadilli ,Assessment Of Two Cheap Close Range Feature
Extraction Systems
C. Rigotti , N.A. Borghese , S. Ferrari , G. Baroni , G. Ferrigno
Portable And Accurate 3D Scanner For Breast Implants Design
and Reconstructive Plastic surgery
Fabio Remondino , 3D Reconstruction Of Articulated Objects
From Uncalibrated Images
Fabio Remondino , Image Sequence Analysis for Human Body
Reconstruction
Fanq-Jen Chen , Application Of Least Squares Adjustment
Technique To Geometric Camera Calibration and
Photogrammetric Flow Visualization
Ibrahim Zeroual and AbdelKrim Lizaid , Use Of DLT In
Photogrammetric Metrology
Jian Xu ,Z.P. Fang, Andrew A. Malcolm,H. Wang , A Robust
Close Range Photogrammetric system For Industrial Metrology
Ming Zhou ,Clive S. Fraser , Automated Surface Extraction In
Real Time Photogrammetry
Nicola D'Apuzzo ,Human Face Modeling From Multi Images
Paul Siebert and Stephen Marshall , Human Body 3D imaging
By Speckle Texture Projection Photogrammetry
Russel Morison ,Weird and Wonderful Applications Of Close
Range Digital Photogrammetry
T.A. Clarke and Dr X. Wang , Extracting High Precision
Information From CCD Image
Tim Suthau , John More , Albert Wiedemann and Jens Franzen
, Close Range Photogrammetry With CCD Cameras and
Matching Methods Applied To Fracture Surface Of An Iron
Bolt
X. Wang and T.A. Clarke , An Algorithmie Method For Real
Time 3D Measurement