Patent ID: 8837857
Filing Date: 2014-09-16
Classification: G06T

Abstract:
1. A method of enhancing image data representing an image of a scene including aerosols, the method comprising: (a) associating a first cost to each point in the image data based on a determined metric of that point having a candidate optical depth, where the determined metric of that point is independent of the determined metric of remaining points in the image; (b) associating second costs to sets of two or more points in the image, where each second cost is based on the candidate optical depths of the points of the associated set compared to at least one predetermined correlation of optical depths of points in a set; (c) determining an estimate optical depth for each point by optimising a combination of the first costs and second costs; and (d) for each point, using the respective estimated optical depth to enhance that point in the image data.