Earth-observation Data Access: a Knowledge Discovery Concept for Payload Ground Segments

This paper proposes an alternative solution for enhancing the access to the data content. Our solution presents a knowledge discovery architecture concept, whose intention is to implement a communication channel between the Payload Ground Segments and the end-user who receives the content of the data sources coded in an understandable format associated with semantics and ready for the exploitation. The architecture concept is defined as a modular system composed of five modules allowing functions such as primitive feature extraction, tiling of the image content, metadata extraction, finding scenes of interest by content, enriched metadata, and semantics, the interpretation and understanding of the image content, semantic definition of the image content, and visualization of the image database via human machine interfaces. All these functionalities are integrated and supported by a relational database management system.