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Title: FPGA implementation of the hyperspectral Lossy Compression for Exomars (LCE) algorithm
Authors: García, Aday
Santos, L. 
López, S. 
Callicó, G. M. 
López Feliciano, José Francisco 
Sarmiento, R. 
UNESCO Clasification: 3307 Tecnología electrónica
Keywords: Image compression
Image coding
SPIHT algorithm
Issue Date: 2014
Publisher: 0277-786X
Journal: Proceedings of SPIE - The International Society for Optical Engineering 
Conference: Conference on High-Performance Computing in Remote Sensing IV 
Abstract: The increase of data rates and data volumes in present remote sensing payload instruments, together with the restrictions imposed in the downlink connection requirements, represent at the same time a challenge and a must in the field of data and image compression. This is especially true for the case of hyperspectral images, in which both, reduction of spatial and spectral redundancy is mandatory. Recently the Consultative Committee for Space Data Systems (CCSDS) published the Lossless Multispectral and Hyperespectral Image Compression recommendation (CCSDS 123), a prediction-based technique resulted from the consensus of its members. Although this standard offers a good trade-off between coding performance and computational complexity, the appearance of future hyperspectral and ultraspectral sensors with vast amount of data imposes further efforts from the scientific community to ensure optimal transmission to ground stations based on greater compression rates. Furthermore, hardware implementations with specific features to deal with solar radiation problems play an important role in order to achieve real time applications. In this scenario, the Lossy Compression for Exomars (LCE) algorithm emerges as a good candidate to achieve these characteristics. Its good quality/compression ratio together with its low complexity facilitates the implementation in hardware platforms such as FPGAs or ASICs. In this work the authors present the implementation of the LCE algorithm into an antifuse-based FPGA and the optimizations carried out to obtain the RTL description code using CatapultC, a High Level Synthesis (HLS) Tool. Experimental results show an area occupancy of 75% in an RTAX2000 FPGA from Microsemi, with an operating frequency of 18 MHz. Additionally, the power budget obtained is presented giving an idea of the suitability of the proposed algorithm implementation for onboard compression applications.
ISBN: 9781628413106
ISSN: 0277-786X
DOI: 10.1117/12.2069493
Source: Proceedings of SPIE - The International Society for Optical Engineering[ISSN 0277-786X],v. 9247 (924705)
Appears in Collections:Actas de congresos
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