Anai, Tetsuji 
^ Sensor part 
+ Stereo image sequences are taken by the CCD 1 and 2 camera (Sony XC-711, 768H -493V) 
+ Tracking is performed by the CCD3 camera (Sony XC-75, 768H  -493V). 
^ Head and body Part 
t Pan and tilt rotation angles are controlled with 10 seconds. 
+ Maximum rotation speed of pan and tilt are 45 per second. 
+ Rotation of the cameras is synchronous to the rotation for the pan head and tilt body. 
^ Imaging part 
+ Synchronization for stereo image is performed. 
+ Time for each image is generated at interval of 1/100 seconds. 
~Recording part 
+ Synchronized stereo image sequences and times are continuously superimposed on image frames and thus 
recorded on video recorder. 
~Control part 
+ Pan and tilt rotation angles are controlled. 
+ Time, pan and tilt rotation angles are connected, and thus recorded on PC. 
+ Tracking is controlled. 
^ Monitor part 
+ Stereo image with times are displayed on VTR monitor. 
+ Time data, pan and tilt rotation angles and tracking image are displayed on PC monitor 
Then, the synchronized stereo image sequences, times, pan and tilt rotation angles can be obtained in real-time. 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Sensor Part Imaging Part Recording Part Monitor Part 
Time Generator Pi 1} 
& VTRI Stereo Image 
Synchronizer mr Time Data 
| PU Stereo Image 
| VTR2 
Time Data 
| À / VTR Monitor 
Distance Data —> Tracking 
Laser Range Finder ae 
i Time Data 
| 75 Tracking Image — 
I H.V. Angle 
CCD3 4 Tracking Image 
H. V. Angle Data 
Y PC Monitor 
£A | <+- Control Signal +} | 
X77 Motor Driver 
Head & Body Part Control Part (PC) 
Figure 1. System Configuration 
3 HUMAN GAIT EXPERIMENT 
In order to evaluate the effectiveness of the HVT System for dynamic analysis of human motion, human gait 
experiments using the HVT system were performed after camera calibration. 
Camera calibration for the CCD1 and CCD2 can be performed by the same procedure in basically for the video 
theodolite with one target. 
  
26 International Archives of Photogrammetry and Remote Sensing. Vol. XXXIII, Part B5. Amsterdam 2000. 
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