Lossless and Lossy Hyperspectral Compression IP Core for Space Missions

Abstract

This work presents a new compression IP core for lossless and near-lossless compression of multi- and hyperspectral data, compliant with the CCSDS-123.0-B-2 compression standard. This IP core supports most of the standard features, including all entropy encoder options and the most common input sample arrangement formats. It features an adaptable preprocessing stage capable of working in both lossless and near-lossless regimes while supporting all prediction and local sum modes, as well as optimized implementations of all entropy encoder variants. Thanks to this, the IP core can achieve a performance of 1 clock cycle per sample for a subset of the compressor configuration space, even in the near-lossless regime. The goal is to have a technology-independent reusable IP core that can be used as a building block in multiple missions, devices and technologies. This IP core is being developed in the scope of the ESA project 4000136723/22/NL/CRS, and it will join the ESA portfolio of IP cores for space missions.