Patent ID: 7983867
Filing Date: 2011-07-19
Classification: G01D

Abstract:
1. A data acquisition system comprising: a plurality of multi-gain detectors, each of the plurality of multi-gain detectors configured to generate an element of raw multi-gain data, each raw multi-gain data element including a scalar value and a flag indicating an associated dynamic range; coupled to the detectors, memory configured to store the raw multi-gain data elements, a first gain factor image, and a second gain factor image, the first gain factor image representing gain factors associated with a first dynamic range of each of the plurality of multi-gain detectors, the second gain factor image representing gain factors associated with a second dynamic range of each of the plurality of multi-gain detectors; and coupled to the memory, a processor configured to correct the raw multi-gain data elements for detector gain, the detector gain correction being responsive to the dynamic range of each raw multi-gain data element, the first gain factor image, and the second gain factor image; wherein: the memory further comprises a single multi-gain lookup table configured for simultaneously converting corrected multi-gain data directly to viewable normalized non-multi-gain data, wherein: said table is indexed by corrected multi-gain data; individual index values include hits configured to he matched with said scalar values and at least one bit configured to be matched with a flag indicating dynamic range; and said converting comprises both conversion of corrected multi-gain data to non-multi-gain data and simultaneous normalization of the non-multi-gain data to viewable data suitable for display to a user or for further processing.