GEZGIN & GEZGIN-2: Adaptive Real-Time Image Processing Subsystems for Earth Observing Small Satellites

First NASA/ESA Conference on Adaptive Hardware and Systems (AHS'06) Pub Date : 2006-06-15 DOI:10.1109/AHS.2006.49

A. Ismailoglu, O. Benderli, S. Yesil, R. Sever, B. Okcan, O. Sengul, R. Öktem

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引用次数: 5

Abstract

GEZGIN and GEZGIN-2 are real-time multi-spectral image processing subsystems developed for 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 reconfigurability 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

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GEZGIN,GEZGIN-2:地球观测小卫星自适应实时图像处理子系统

GEZGIN和GEZGIN-2是分别为土耳其首两颗对地观测小卫星BILSAT-1和RASAT研制的实时多光谱图像处理子系统。这些子系统的主要功能是使用JPEG2000图像压缩算法对成像仪并发接收的多光谱图像进行实时压缩。压缩特性通过用户提供的在轨参数进行控制，使压缩率能够适应带宽、图像质量和其他任务要求。GEZGIN采用可重构硬件和DSP处理器进行图像处理，其中更先进的GEZGIN-2在可重构硬件上包含JPEG2000处理路径和其他图像预处理功能的完全集成，因此提供更高的性能和完全可重构性。这两个系统都展示了用于实现图像处理功能的空间定制架构，其中适应性成为决定系统稳健性、灵活性和生存性的关键问题

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First NASA/ESA Conference on Adaptive Hardware and Systems (AHS'06)

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