“…According to the fusion strategies and theories adopted [6], several representative infrared and visible image fusion algorithms have been proposed, including multi-scale transform- [7][8][9], sparse representation- [10,11], neural network- [12,13], subspace- [14,15], and saliency-based [16,17] methods, hybrid models [18,19], and other methods [20,21]. These methods are widely used and still studied by many researchers.…”