| GEZGİN is a real-time
image processing subsystem, developed as one of
the two Turkish R&D payloads to be hosted
on BİLSAT-1. GEZGİN has evolved as an implementation
to achieve image compression tasks that would
lead to an efficient utilization of both the down-link
and on-board storage.
The image processing on GEZGİN
includes capturing of 4-band multi-spectral images
of size 2048x2048 8-bit pixels, compressing them
simultaneously with the new industry standard
JPEG2000 algorithm and forwarding the compressed
multi-spectral image to Solid State Data Recorders
(SSDR) of BİLSAT-1 for storage and down-link transmission.
The mission definition together with orbital parameters
impose a 5 seconds constraint on real-time image
compression. GEZGİN meets this constraint by exploiting
the parallelism among image processing units and
assigning compute intensive tasks to dedicated
hardware which also allows for full reconfigurability
of all processing units. |
