Patent ID: 9210332
Filing Date: 2015-12-08
Classification: G06K,G07D,H04N

Abstract:
1. A currency processing system for assessing the fitness of bank notes, the system comprising: a batch feed; a conveyer proximate the batch feed for moving notes from the batch feed; a plurality of sort bins proximate the conveyer for receiving notes; a control system; a plurality of illumination sources coupled to the control system and proximate the conveyer, wherein the plurality of illumination sources includes at least two different wavelengths of electromagnetic radiation; a line scan camera proximate the conveyer and coupled to the control system for capturing images in greyscale; and the control system including a memory and a processor, wherein the memory and processor are operable to perform the following steps: activate the plurality of illumination sources in a predetermined order, use the line scan camera to capture image data associated with the predetermined order and saving the image data in memory, wherein the image data are captured at a same location on a note for each of the plurality of illumination sources, apply a transformation function to the image data to produce a multi-dimensional vector, and compare the multi-dimensional vector to a reference vector to yield a scalar fitness value.