パソコンLANによるランドサット画像処理システム

抄録

Formerly Landsat MSS data was distributed on computer compatible magnetic tape (MT). This restricted image processing systems to high cost computer systems (mini-computers or larger computer systems) which included MT equipment.
Since 1983 it has also been distributed on floppy disks opening the way for widespread image processing by low cost personal computers.
This has usually been done by stand alone computers, however there are advantages in using a personal computer Local Area Network (LAN). All the personal computers on the network can share a huge block of MSS data, and can even access the same file at the same time.
The authors have developed an image processing system for MSS data analysis by a personal computer LAN. This LAN system consists of a file server personal computer using a rewritable magneto-optical disk, which contains seven scenes -226 Mbytes-of MSS data, and ten personal computers, two of which have 768 Kbyte full color frame buffers for use interactive image processing.High processing speed was attained by C language programming. All menu selections are made with a mouse making it easy to use even for beginners.
This system may be increased up to an optimum of four to five stations and still maintain a high level of system cost performance.
This system may be highly usable for research in distant (up to 900 m) laboratories and other educational usage.