Super-Resolution of Lunar Satellite Images for Enhanced Robotic Traverse Planning
José Ignacio Delgado-Centeno, Paula Harder, Valentin Bickel, Ben Moseley, Freddie Kalaitzis, Siddha Ganju, Miguel A. Olivares-Mendez
Abstract
Lunar exploration missions require detailed and accurate planning to ensure their safety. Remote sensing data, such as optical satellite imagery acquired by lunar orbiters, is key for the identification of future landing and mission sites. Here, robot- and astronaut-scale obstacles are the most relevant to resolve, however, the spatial resolution of the available image data is often insufficient - particularly in the poorly illuminated polar regions of the Moon -, leading to uncertainty. This work shows how a novel single-image Super-Resolution (SR) appli- cation - ANUBIS, Adversarial Network for Uncertainty Based Image Super-resolution - can enhance lunar surface imagery by improving their resolution by a factor of 2, outperforming other approaches and benchmarks. The enhanced images improve the reliability and detail of lunar traverse planning and topographic reconstruction, while providing an estimate of the uncertainty associated with the enhancement process, vital to ensure mis- sion planning integrity. This work demonstrates how machine learning-driven processing can enhance existing data products to maximize their value for science and exploration of the Moon and other celestial bodies.