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Space Technologies Research Institute

GEZGN: REAL-TIME, MULTI-SPECTRAL IMAGE COMPRESSION SUB-SYSTEMS

Real-Time Processing of image streams Concurrent processing of multi-spectral bands JPEG2000 Image Compression Tile based compression (256 x 256 pixel tile size) 3-level Discrete Wavelet Transform Compute-intensive tasks on reconfigurable ASICs (FPGAs) Compression Rate & Quality adjustable in-orbit Implementation with COTS components Failsafe operation Redundancy, monitoring & reconfiguration in-orbit

Space-proven on BiLSAT LEO Satellite, successfull in-orbit

Launched in Sept 2003, to a sun-synchronous, 686km orbit

31 x 33 x 6cm size, 2 kg mass

JPEG2000 Implementation similiar to the CCSDS 122.0-R-2Draft for Image Compression in Space

Space-qualified for RASAT LEO Satellite

To be launched in 2010, to a sun-synchronous, 700km orbit

16 x 33 x 6cm size, 1kg mass

JPEG2000 Implementation with novel techniques for fine

adjustment of compression rate

Full ASIC implementation

Rate-Distortion Optimization adopted for non-iterative

on-board processing

RONI extraction for detecting and decreasing the budget

of cloudy regions

AES Encryption cascaded with compression

Cloud Elimination

GEZGN

GEZGiN-2A

GEZGN-2

GEZGN2-A has been qualified for 700km LEO mission in 2011 and is

expected to be in orbit by the end of 2012

16 x 33 x 6cm size, 1kg mass

JPEG2000 Implementation with novel techniques for fine adjustment

of compression rate

Double JPEG Engine for high pixel rates

ROI (Unclouded Regions)Original Cloudy Image

Full ASIC implementation

Rate-Distortion Optimization adopted for non-iterative

on-board processing

RONI extraction for detecting and decreasing the budget

of cloudy regions

AES Encryption cascaded with compression

Original Image (BiLSAT-1, 26m GSD) 16MB Image Compressed by GEZGiN 0.838% (120 times) 140KB

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www.uzay.tubitak.gov.tr

bilgi@uzay.tubitak.gov.tr

TBTAK UZAY06531 ODT Yerlekesi ANKARA TRKYET +90 312 210 1050

+90 312 210 1310

F +90 312 210 1315

4 MSI Inputs @ 80Mbps 3 MSI+PAN Inputs @ 55Mbps4 MSI +PAN Inputs

off-line @ 100 MbpsReal-time @ 500-600 Mbps

Single stream @ 25MbpsLVDS @ 25Mbps,

Spacewire @100MbpsLVDS @ 25Mbps,

Spacewire @ 100Mbps

LOSSY @ 10 Mpixel/sec,8-bit/pixel

LOSSLESS & LOSSY @ 7Mpixel/sec8-bit/pixel

LOSSLESS & LOSSY@ 45-55Mpixel/sec

11-bit/pixel

COARSE

Quantization,SubbandOmissionColour

Transform

FINERate-Distortion Optimization &RONI extraction

FINERate-Distortion Optimization &RONI extraction

Divided between XilinxVirtexE300 FPGA @ 80MHz

and TMS320C6701 DSP @ 100MHz

Fully Integrated on XilinxVirtex-2 2M gate FPGA @ 110MHz

2 JPEG2000 enginesIntegrated on Xilinx Virtex-5 LX330

FPGA @ 250MHz

RSA and AES encryptionASICs on a daughterboard

AES encryption embeddedin Xilinx FPGA

Redundancy, TMR, Latch-up

protection, Reconfiguration &Software upload in Orbit,Graceful Degradation

Redundancy, Latch-up protection,

Reconfiguration & Softwareupload in Orbit

Redundancy,

Latch-up protection,Configuration scrubbing

8 Watts @ 28V 6 Watts @ 28V 15 Watts @ 28V

I/P Features

O/P Features

JPEG2000 Compression Features

Adjustment of CompressionRate and Quality

JPEG2000

Implementation

Other Features

Fail-safe operation

Mass

Power Consumption

2 kg 1 kg 1 kg

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GEZGN GEZGN-2 GEZGN-2A

Raw test image Test image, compressed by GEZGiN-2, ratio: 1/8