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US 2011/0235940 A1Published application
Transient pixel defect detection and correction
AssigneeVarian Medical Systems, Inc.
InventorJohn Pavkovich
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AssigneeVarian Medical Systems, Inc.
InventorJohn Pavkovich
Estimating the term…
A method of processing images produced by an imaging system includes detecting transient defects by comparing the value of a selected pixel with values of a plurality of the neighboring pixels, excluding known defective pixels. The value of the selected pixel may be compared with the maximal or minimal value of the neighboring pixels, and if the comparison shows that the value of the selected pixel exceeds the maximal or minimal value by a predetermined value, then the pixel may be identified as producing transient defect. Alternatively, the value of the selected pixel may be compared with the median value of the neighboring pixels, and if the comparison shows that the value of the selected pixel deviates the median value by a predetermined value, then the pixel may be identified as producing transient defect.
A method of processing images produced by an imaging system comprising the step of detecting transient defects in an image, said detecting step comprising comparing a value of a selected pixel with values of a plurality of neighboring pixels excluding known defective pixels.
A method of processing images produced by an imaging system comprising the steps of:
Dependencies are inferred from the claim text.