Spatial and Spectral Filtering Strategies for Cassini VIMS Surface Images of Titan

The VIMS imaging spectrometer onbord CASSINI provides hyperspectral images of Titan in 352 spectral channels from 0.3 to 5.1 μm. In-frared channels are particularly useful to map the sur-face of Titan through narrow atmospheric transmission windows [1,2]. VIMS can be used for geomorphologi-cal studies thanks to the imaging capabilities. The spectral dimension is used to investigate the composi-tion of the surface materials. We focus here on the improvement of the S/N ratio both for surface imaging and spectral studies.