A feasibility study of on-board data compression for infrared cameras of space observatories

Author

Reimers, C. ; Belbachir, A.N. ; Bischof, H. ; Ottensamer, R. ; Cesarsky, D.A. ; Feuchtgruber, H. ; Kerschbaum, F. ; Poglitsch, A.

Author_Institution

Inst. of Astron., Wien Univ., Vienna, Austria

Volume

1

fYear

2004

fDate

23-26 Aug. 2004

Firstpage

524

Abstract

In this paper, the feasibility of on-board data reduction/compression concept described in is evaluated for infrared images taken from space observatories. The method described in, which was initially designed and developed for the PACS (photodetector array camera and spectrometer) instrument, makes use of on-board integration to achieve higher compression ratio (CR) for applications with a modest telemetry rate. The evaluation of the reduction concept takes into account the visual performance (distortion) and the compression ratio. The distortion is assessed by calculating the reconstruction error using 4 metrics, namely, root mean square error (RMSE), signal-to-noise-ratio (SNR), peak-signal-to-noise-ratio (PSNR) and potential information loss (PIL). A quantitative evaluation of the on-board compression concept is performed on data from the infrared camera ISOCAM (infrared space observatory camera). We conclude with a short summary.

Keywords

cameras; data compression; data reduction; image coding; image reconstruction; infrared imaging; mean square error methods; image compression ratio; image reconstruction error; infrared cameras; infrared images; infrared space observatory camera; onboard data compression; onboard data reduction; onboard space observation; peak signal to noise ratio; photodetector array camera; photodetector array spectrometer; potential information loss; root mean square error; telemetry rate; Cameras; Chromium; Data compression; Image coding; Infrared imaging; Instruments; Observatories; Photodetectors; Picture archiving and communication systems; Spectroscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Pattern Recognition, 2004. ICPR 2004. Proceedings of the 17th International Conference on

ISSN

1051-4651

Print_ISBN

0-7695-2128-2

Type

conf

DOI

10.1109/ICPR.2004.1334186

Filename

1334186