GEZGIN & GEZGIN-2: Adaptive real-time image processing subsystems for earth observing small satellites

2006-06-18
Ismailoglu, N.
Benderli, O.
Yesil, S.
Sever, Ramazan
Okcan, B.
Sengul, O.
Oktem, Rusen
GEZGIN and GEZGIN-2 are real-time multispectral image processing subsystems developedfor BILSAT-1 and RASAT satellites respectively, the first two earth observing small satellites of Turkey. Main functionality of these subsystems is to compress in real-time multi-spectral images received concurrently from imagers, using JPEG2000 Image Compression algorithm. The compression features are controlled through user-supplied parameters uploaded in-orbit, so that the compression rate could be adapted to bandwidth, image quality and other mission requirements. GEZGIN employs both reconfigurable hardware and a DSP processor for image processing, where as the more advanced GEZGIN-2 contains full integration of the JPEG2000 processing path plus other image pre-processing features on reconfigurable hardware, hence offering increased performance and full re-configurability in orbit. Both systems demonstrate space-tailored architectures for implementing image processing functions where adaptability becomes the crucial issue determining robustness, flexibility and survivability of the system.
Citation Formats
N. Ismailoglu et al., “GEZGIN & GEZGIN-2: Adaptive real-time image processing subsystems for earth observing small satellites,” 2006, p. 351, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/63026.