Hyperspectral Classification Onboard the Hypso-1 Cubesat

A real-time hyperspectral classification pipeline, consisting of a support vector machine in a binary decision tree architecture, has been developed for the HYPSO-1 cubesat. On May 24, 2023, the pipeline classified its first image in orbit in less than ten seconds. In tests on the ground, prior to the deployment of the pipeline, both radiance and top-of-atmosphere reflectance data performed similarly well, and sparsity was shown to give a slight speed improvement.