Patent ID: 8613386

Claim:
A system for contrast scanning in a data storage system, the system comprising: a spot scanner coupled with a carriage configured to sweep the spot scanner in a scan direction to acquire raw contrast data indicating a color at each of a plurality of locations within a scan window; a processor, in communication with the spot scanner, and configured to: receive a request for contrast scanning of a label; acquire a label model and expected label location according to the request, wherein the label model identifies one or more of a label width, a label height, a label focus distance, a label surface texture parameter, a label color parameter, or a label symbology map; acquire spot scanner settings associated with the label model; and direct the spot scanner to acquire the raw contrast data according to the request and according to the scanner settings; a decoder, in communication with the processor, and configured to: decode the raw contrast data to generate a label profile for a purported label within the scan window, the label profile comprising a scanned symbol set; and determine whether the label profile is valid according to the label model; and a label profile store, in communication with the decoder, and configured to store a verified label record for the label including the scanned symbol set of the purported label when the label profile is valid according to the label model.