Systems and methods for processing infrared images

摘要

Various techniques are provided to process infrared images. In one implementation, a method of processing infrared image data includes receiving infrared image data associated with a scene. The infrared image data comprises a plurality of pixels arranged in a plurality of rows and columns. The method also includes selecting one of the columns. The method also includes, for each pixel of the selected column, comparing the pixel to a corresponding plurality of neighborhood pixels. The method also includes, for each comparison, adjusting a first counter if the pixel of the selected column has a value greater than the compared neighborhood pixel. The method also includes, for each comparison, adjusting a second counter if the pixel of the selected column has a value less than the compared neighborhood pixel. The method also includes selectively updating a column correction term associated with the selected column based on the first and second counters.

主权项

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.