Special Section on High-Performance Computing in Applied Remote Sensing: Part 2

Graphics processing unit implementation of JPEG2000 for hyperspectral image compression

[+] Author Affiliations
Milosz Ciznicki, Krzysztof Kurowski

Poznan Supercomputing and Networking Center, Noskowskiego 10, 61-704 Poznan, Poland

Antonio Plaza

University of Extremadura, Hyperspectral Computing Laboratory, Department of Technology of Computers and Communications, Avda. de la Universidad s/n. 10071 Cáceres, Spain

J. Appl. Remote Sens. 6(1), 061507 (Jun 21, 2012). doi:10.1117/1.JRS.6.061507
History: Received October 2, 2011; Revised March 9, 2012; Accepted April 25, 2012
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Abstract.  Hyperspectral image compression has received considerable interest in recent years due to the enormous data volumes collected by imaging spectrometers for Earth Observation. JPEG2000 is an important technique for data compression, which has been successfully used in the context of hyperspectral image compression, either in lossless and lossy fashion. Due to the increasing spatial, spectral, and temporal resolution of remotely sensed hyperspectral data sets, fast (on-board) compression of hyperspectral data is becoming an important and challenging objective, with the potential to reduce the limitations in the downlink connection between the Earth Observation platform and the receiving ground stations on Earth. For this purpose, implementation of hyperspectral image compression algorithms on specialized hardware devices are currently being investigated. We have developed an implementation of the JPEG2000 compression standard in commodity graphics processing units (GPUs). These hardware accelerators are characterized by their low cost and weight and can bridge the gap toward on-board processing of remotely sensed hyperspectral data. Specifically, we develop GPU implementations of the lossless and lossy modes of JPEG2000. For the lossy mode, we investigate the utility of the compressed hyperspectral images for different compression ratios, using a standard technique for hyperspectral data exploitation such as spectral unmixing. Our study reveals that GPUs represent a source of computational power that is both accessible and applicable to obtaining compression results in valid response times in information extraction applications from remotely sensed hyperspectral imagery.

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© 2012 Society of Photo-Optical Instrumentation Engineers

Citation

Milosz Ciznicki ; Krzysztof Kurowski and Antonio Plaza
"Graphics processing unit implementation of JPEG2000 for hyperspectral image compression", J. Appl. Remote Sens. 6(1), 061507 (Jun 21, 2012). ; http://dx.doi.org/10.1117/1.JRS.6.061507


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