2.1 System Configuration 
Figure 1 shows the configuration of video data 
At the same time, the location information, the time 
and the date are stored in files. 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
   
  
  
  
  
  
  
  
Out the collection system. (3) Specification of Locations for Analysis 
This system is composed of a video camera, a VTR, This function allows to specify a location that should 
an airborne GPS (GARMIN GPS100AVD), a personal be analyzed. When the location is specified, this 
computer (NEC PC9821Xa) with built in an 232c-ports function stores the location information, the date, the 
i Ocean extended board, a video board(CANOPUS time and the counter of the VTR tape are stored a file 
Jital video SuperCVI-Il), a video computer interface box (SONY for further analysis. At the same time, the location is 
e made, VBOX) and a monitor. There are also several displayed on a navigation information map. The 
input;of Microsoft Windows 3.1 based applications for counter of the VTR is acquired automatically with a 
report. iS integrating all the hardware and processing of the video computer interface box. 
t can be collected data. The airborne GPS in this system uses 
point positioning method to acquire latitude and (4) VTR Control 
longitude data which are stored in the personal This function allows to control the VTR by a personal 
computer. The video camera is fixed onto a vertical computer, such as rewinding and recording. 
mount with a HASSELBLAD camera. 
2.2.2 Flight Navigation Function 
loped to 2.2 Major Functions 
1 without (1) Input of Date and Time 
Ren This The developed system has two kind of functions. The This function allows to input the date and the time of 
Gfive aid one is data collection function, which is designed to the flight to set a clock of personal computer right. 
1S: wihout collect images and locations. The other is flight 
long a navigation function, which is designed to guide the (2) Display of an Aviation Route 
atop airplane to the destinations for data collection. This function allows to input and select a scheduled 
the video aviation route. After selecting the route, the flight route 
SPOT 2.2.1 Data Collection Function is displayed on a navigation information map. 
trieval of 
he target (1) Acquisition of the current position (3) Display of The Current Position 
9 used in This function acquires the current position of the Based on the data acquired from an airborne GPS, this 
ulti-media airplane once in a second from an airborne GPS. function indicates the current position of the airplane 
red area. on a navigation information map. The map is scrolled 
proven () Synchronization of Video Images and Locations automatically with according to the airplane's position. 
ut ocean This function creates a video image of the Furthermore, it also displays the coastline and the 
System is corresponding position and ocean at real time (30 prohibited territory as the background of the map. The 
following frames per a second). The position, the time and the navigation information map covers all of Japan's 
UM date are recorded on every video image (frame image). islands and can be displayed in five scale levels, with 
ion 
isture on 
VIDEO CAMERA x NZ 
[li 1—-—5 AE COMPUTER 
MONITOR | 
[EL AN 
EAU) 
5 VIDEO BOARD 
> 
VIDEO COMPUTER LIES 
INTERFACE i| € 
m oooooo {jf ^ — 
J< LIC 
XTE $7232C 
are RS-232C | [ f 
oll ; LIQUID CRYSTAL 
  
  
  
[on SCL) <— MONITOR 
  
  
  
  
Figure 2 Configuration of The Video Data Collection System 
501 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B7. Vienna 1996