transits and 
ing resection 
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rameters),and 
in the depth 
n close-range 
, and to save 
ze an on-line 
stereo image 
e application 
ion 
graphs into 
ion and the 
n an optical 
by using the 
; to be read 
à close-range 
ph taken by 
aphy, stereo 
ed by digital 
> stereoscopic 
n a polarized 
', interactive 
e correlation 
measured data 
processed as 
rele commands 
(i.e. drawing 
Since the 
on the stereo 
nfirmation of 
re-measurement 
nultaneously. 
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which cannot 
eds plotting 
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[GURA TION 
Fig.1. This 
analyze 3D 
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troller. 
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changing the 
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ed on an XY 
plates and is 
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Fig.1 Stereo image system 
partially by the transmitted light from a 
halogen light source. XY stage is controlled by 
D.C servo motors in the speed of 20mm/sec. 
Output format (A/D) of an area CCD sensor is 
converted in 8-bit binary data and stored on 
-optical disk after being stored temporarily in a 
frame memory. Also, as index image data, a 
sampled image in user specified size can be 
formed at the same. Moreover, linear encoders 
of 1um reading are provided along the XY stage 
and the film position can be measured with high 
accuracy by switching the optical system to high 
magnification (5X). 
Specifications of Image Scanner PS-1000 
  
€ File size : Max. 240x240mm 
€ AreaCCD: Number of pixels : T80(H)xuU88(V) 
Area size : 8.97x6.58mm 
Pixel size $34, 5x13.5,m 
€ Measurement magnification : 1x, 5x, (2x*) 
® Accuracy of 
absolute position : H3ym 
(XY stage) 
© Gray values : 8 bits 
  
  
  
% indicates the scanner PS-1000S for 6X6 version 
and is used in this experiment. 
  
Fig.2 Image Scanner PS-1000 
  
2.2. Stereo Image Workstation PI-1000 
2.2.1. Hardware 
The stereo image workstation, as shown in Fig.3, 
consists of personal computer, 3D display 
monitor, optical disk drivers, image processing 
units, mouse for 3D measurement and polarized 
glasses. 
The 3D display applies two color displays of 
high resolution and is attached polarized 
filters orthogonally. Set a halfmirror for 
compounded images between the displays, so that 
the operator can observe the stereo images 
stereoscopically by wearing orthogonal polarized 
glasses. 
The image processing unit consists of processor 
with functions of rotation, reduction, 
magnification of images on right and left, frame 
memory, memory for floating mark and drawing 
data, SCSI interface and so on. 
The mouse has a 3D cursor, which has added 2 
direction (only for the floating mark on the 
right) control to the conventional functions of 
X and Y directions, for coordinate measurement 
and its menu operation. 
  
Fig.3 Stereo Image Workstation PI-1000 
V2 $ed 
S.Menual "easorement Mode 
4.D.1.M. Production Mode 
$.End € Return To OS ) 
Fig.4 Main Menu on the PC Screen