Patent ID: 8073279

Claim:
A method for processing remotely acquired imagery data, comprising: identifying, by at least one electronic circuit, a region of lowest intensity in each of a plurality of different images for a plurality of different spectral bands; estimating, by said electronic circuit, first values for upwelling path radiance for each of said different images according to an intensity in said region in each of said different images; selecting, by said electronic circuit, a visibility value; calculating, by said electronic circuit, second values for said upwelling path radiance for each of said different images, each of said second values based on a radiation transfer model, said radiation model generated using said visibility value and said meta-data; comparing, by said electronic circuit, said first and said second values for said upwelling path radiance for said different images; adjusting, by said electronic circuit, said visibility value based on said comparison; and repeating, by said electronic circuit, said calculating, said comparing, and said adjusting steps until a termination condition is met.