Patent ID: 9237284
Filing Date: 2016-01-12
CPC Classification: H04N

Claim Text:
1. A method of processing infrared image data, the method comprising: receiving infrared image data associated with a scene, wherein the infrared image data comprises a plurality of pixels arranged in a plurality of rows and columns, wherein at least a subset of the pixels comprise column noise; selecting one of the columns; for each pixel of the selected column, comparing the pixel to a corresponding plurality of neighborhood pixels residing in the same row as the pixel; for each comparison, adjusting a first counter if the pixel of the selected column has a value greater than the compared neighborhood pixel; for each comparison, adjusting a second counter if the pixel of the selected column has a value less than the compared neighborhood pixel; for each comparison, adjusting a third counter if the pixel of the selected column has a value equal to the compared neighborhood pixel; determining, based on at least the first, second, and third counters, that an update condition for a column correction term associated with the selected column is met; and selectively updating the column correction term in response to the determining that the update condition is met to reduce the column noise associated with the selected column.