Patent ID: 7924312

Claim:
A method of registering a visible-light image and an infrared image in a thermal imaging camera, comprising: receiving visible-light image data corresponding to a first view of a scene and infrared image data corresponding to a second view of the scene, the first view and the second view, and the corresponding visible-light image data and infrared image data, having a parallax error; detecting a first feature set in the visible-light image data; detecting a second feature set in the infrared image data; generating a plurality of overlapping alignments of the infrared image data and the visible-light image data; calculating a similarity figure for each overlapping alignment, the similarity figure being a function of the relative alignment of the first feature set and the second feature set; selecting one of the overlapping alignments having a desired similarity figure; aligning the visible-light image data and the infrared image data according to the selected overlapping alignment; and displaying at least a portion of the visible-light image data and/or at least a portion of the infrared image data.