Fuzzy Based Hybrid Focus Value Estimation for Multi Focus Image Fusion  

作　　者：Muhammad Ahmad M.Arfan Jaffar Fawad Nasim Tehreem Masood Sheeraz Akram 

机构地区：[1]The Superior University Lahore,54000,Pakistan [2]University of Pittsburgh,15213,USA

出　　处：《Computers, Materials & Continua》2022年第4期735-752,共18页计算机、材料和连续体（英文）

摘　　要：Due to limited depth-of-field of digital single-lens reflex cameras,the scene content within a limited distance from the imaging plane remains in focus while other objects closer to or further away from the point of focus appear as blurred(out-of-focus)in the image.Multi-Focus Image Fusion can be used to reconstruct a fully focused image from two or more partially focused images of the same scene.In this paper,a new Fuzzy Based Hybrid Focus Measure(FBHFM)for multi-focus image fusion has been proposed.Optimal block size is very critical step for multi-focus image fusion.Particle Swarm Optimization(PSO)algorithm has been used to find optimal size of the block of the images for extraction of focus measure features.After finding optimal blocks,three focus measures Sum of Modified Laplacian,Gray Level Variance and Contrast Visibility has been extracted and combined these focus measures by using intelligent fuzzy technique.Fuzzy based hybrid intelligent focus values were estimated using contrast visibility measure to generate focused image.Different sets of multi-focus images have been used in detailed experimentation and compared the results with state-of-the-art existing techniques such as Genetic Algorithm(GA),Principal Component Analysis(PCA),Laplacian Pyramid discrete wavelet transform(DWT),and aDWT for image fusion.It has been found that proposed method performs well as compare to existing methods.

关 键 词：Fuzzy logic multi-focus image fusion DEFOCUS FOCUS contrast visibility focus measure 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]