In this paper, we present an improved image fusion approach based on Partial Differential Equation (PDE). In the
new method, the classical calculation for gradient-difference of neighboring pixels is replaced by numerical
differentiation. We compare the new method with the former PDE-based method, the results show that the quality of
fused image obtained by new method is improved to some extent by means of a quality index, and the convergence of
output image by new method is also faster to some degree than that by former PDE-based method.
Zheng Kou, Zheng Kou,
Kai Liu, Kai Liu,
"An improved image fusion approach", Proc. SPIE 8285, International Conference on Graphic and Image Processing (ICGIP 2011), 82857M (1 October 2011); doi: 10.1117/12.913532; https://doi.org/10.1117/12.913532