A two-dimensional truncated singular value decomposition (TSVD) technique is first proposed to enhance spatial resolution of earth observation (EO) products related to ocean-atmosphere interaction. The technique is based on the assumption that the gain function is a two-dimensional tensor product. To set the value of the truncation parameter the Generalized Cross Validation is adopted. Experiments undertaken on a data set of simulated two- dimensional radiometer measurements show the robustness of the technique against the additive noise level and its effectiveness in both reconstruction accuracy and processing time.
A Two-dimensional TSVD resolution enhancement for EO ocean applications / Lenti, F; Migliaccio, Maurizio; Nunziata, Ferdinando; Rodriguez, G.. - (2012). (Intervento presentato al convegno ESA-SOLAS-EGU Conference for Ocean-Atmosphere Interaction Science tenutosi a Frascati (ROMA)).
A Two-dimensional TSVD resolution enhancement for EO ocean applications
MIGLIACCIO, Maurizio;NUNZIATA, FERDINANDO;
2012
Abstract
A two-dimensional truncated singular value decomposition (TSVD) technique is first proposed to enhance spatial resolution of earth observation (EO) products related to ocean-atmosphere interaction. The technique is based on the assumption that the gain function is a two-dimensional tensor product. To set the value of the truncation parameter the Generalized Cross Validation is adopted. Experiments undertaken on a data set of simulated two- dimensional radiometer measurements show the robustness of the technique against the additive noise level and its effectiveness in both reconstruction accuracy and processing time.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
