Abstract: Feature extraction of image data using feature extraction modules. The feature extraction modules may be provided in an architecture that allows for modular, decoupled generation and/or operation of the feature extraction modules to generate feature data corresponding to image data. In this regard, the feature extraction modules may communicate with a file system storing image data and feature data by way of a common interface format. Accordingly, regardless of the nature of the execution of the feature extraction module, each feature extraction module may be communicative by way of the common interface format, thereby providing a modular approach that is highly scalable, flexible, and adaptive.

Abstract: A system for controlling currency exchange and merchandise sales on commercial airline flights includes a point-of-sale (POS) computer for receiving currency and merchandise inventory information preflight and for recording transactions in-flight. Data is exchanged between the POS computer and a cash/currency processing computer (CPC) for reconciling preflight and post-flight inventories and for generating reports for use by the airlines, merchandise vendors and currency exchange service providers. A control method includes the steps of determining currency and merchandise inventories preflight, recording transactions in-flight and reconciling and reporting transactions post-flight.