TU Chao-ping, XIAO Jin-sheng, DU Kang-hua, et al. Multi-focus Image Fusion Algorithm Based on the Anisotropic Thermal Diffusion Equation[J]. Acta Electronica Sinica, 2015, 43(6): 1192-1199.
TU Chao-ping, XIAO Jin-sheng, DU Kang-hua, et al. Multi-focus Image Fusion Algorithm Based on the Anisotropic Thermal Diffusion Equation[J]. Acta Electronica Sinica, 2015, 43(6): 1192-1199. DOI: 10.3969/j.issn.0372-2112.2015.06.023.
A method for multi-focus image fusion based on depth information extraction is discussed.Under the optical imaging principle of multi-focus image
the anisotropic thermal diffusion equation is used to estimate the image depth information.Firstly
the optical imaging of two multi-focus images is simulated and the positive thermal diffusion equation is respectively established.After iteration of thermal diffusion equation
the image scene depth information is estimated.Depth information is adaptively divided
and images are divided into three regions:clear region
fuzzy region and intermediate transition region.Finally
the result of the proposed algorithm is achieved as soon as the pixels of clear region are extracted and pixels of transition region are fused.Theoretical analysis and experiment results show that the proposed algorithm is an effective method of image fusion that can overcome the block effect and artifacts in general algorithms.