Remote-sensing images of Mars contain rich information about its surface morphology, topography, and geological structure. These data are fundamental for scientific research and exploration missions of Mars. Prior to China’s first Mars exploration mission, data from six advanced optical imaging systems of different missions in the Martian orbit was used to generate Mars global/near-global image datasets with spatial resolutions better than 1 km.
However, in terms of global color images, the best version of Mars Viking Colorized Global Mosaic has a resolution of approximately 232 m/pixel. There is a lack of global color images of Mars at the hundred-meter scale and higher resolution.
New data obtained by the Tianwen-1 mission has laid the foundation for the development of a high-...
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