A DCT image data processor for use on the Huygens Titan Probe
Abstract
A discrete cosine transform (DCT) image data compressor for implementation in the Huygens-descent imager spectral radiometer (DISR)-camera is described. The functional diagram and eight optional compression schemes are outlined. These schemes are defined by the combination of three binary variables: (1) control target, (2) bit assignment and (3) substring qualification criterion. The rationale for the selection of one of these schemes are explained. Details of the compression procedure and the H/W-implementation are presented.
- Publication:
-
IGARSS 1992; Proceedings of the 12th Annual International Geoscience and Remote Sensing Symposium
- Pub Date:
- 1992
- Bibcode:
- 1992igrs.conf..678R
- Keywords:
-
- Cassini Mission;
- Data Compression;
- Image Processing;
- Titan;
- Feedback Control;
- Image Analysis;
- Iterative Solution;
- Matrices (Mathematics);
- Signal To Noise Ratios;
- Transformations (Mathematics)