Publication detail

Lossless Hyperspectral Image Compression in Comet Interceptor and Hera Missions with Restricted Bandwith

SKOG, K. KOHOUT, T. KAŠPÁREK, T. WOLFMAYR, M.

Original Title

Lossless Hyperspectral Image Compression in Comet Interceptor and Hera Missions with Restricted Bandwith

Type

journal article - other

Language

English

Original Abstract

Lossless image compression is vital for missions with limited data transmission bandwidth. Reducing file sizes enables faster transmission and increased scientific gains from transient events. This study compared two image compression algorithms, CCSDS 122.0 and JPEG 2000, used in the European Space Agency Comet Interceptor and Hera missions respectively, in varying scenarios. The performance analysis for both algorithms consists of compressing simulated asteroid images in the visible and near-infrared spectral ranges. In addition, all test images were noise-filtered to study the effect of the amount of noise on both compression ratio and speed. The study found that JPEG 2000 achieved consistently higher compression ratios and benefited from decreased noise more than CCSDS 122.0. However, CCSDS 122.0 produced comparable results faster than JPEG 2000 and is substantially less computationally complex. These results not only support previous findings while contributing valuable knowledge to the behavioral characteristics of both algorithms but also provide insight for entities planning on using either algorithm for on-board of planetary missions.

Keywords

image compression, CCSDS 122.0, JPEG 2000, hyperspectral data, noise filtering, comet, asteroid

Authors

SKOG, K.; KOHOUT, T.; KAŠPÁREK, T.; WOLFMAYR, M.

Released

4. 3. 2025

ISBN

2072-4292

Periodical

Remote Sensing

Year of study

17

Number

899

State

Swiss Confederation

Pages from

1

Pages to

18

Pages count

18

URL

https://www.mdpi.com/2072-4292/17/5/899

BibTex

@article{BUT193376,
  author="SKOG, K. and KOHOUT, T. and KAŠPÁREK, T. and WOLFMAYR, M.",
  title="Lossless Hyperspectral Image Compression in Comet Interceptor and Hera Missions with Restricted Bandwith",
  journal="Remote Sensing",
  year="2025",
  volume="17",
  number="899",
  pages="1--18",
  doi="10.3390/rs17050899",
  issn="2072-4292",
  url="https://www.mdpi.com/2072-4292/17/5/899"
}