Patent ID: 11948290
Assignee: SIEMENS MEDICAL SOLUTIONS USA, INC.
Field: Medical technology (Instruments)
Classification: CPC G  A | IPC A  G

Claim 13:
14. A system for characterizing a collimator, comprising:
at least one digital camera mounted at a fixed distance from the collimator, wherein the at least one digital camera photographs first and second sides of the collimator to generate respective first and second image data, wherein the at least one digital camera and the collimator are contained in a light box; and
a computer system communicatively coupled to the at least one digital camera, the computer system including a non-transitory memory device for storing computer readable program code, and a processor device in communication with the memory device, the processor device being operative with the computer readable program code to perform steps including
receiving the first and second image data,
generating an optical characterization map (OCM) based on the first and second image data, including generating first and second optical maps based on the first and second image data using one or more image processing techniques and identifying pixels belonging to individual channels of the collimator based on the first and second optical maps, wherein the OCM stores measurements of the individual channels of the collimator based on the first and second optical maps, and
performing quality assessment based on the OCM, including determining sensitivities of the individual channels using the measurements stored in the OCM.