Weighted image fusion using cross bilateral filter and non-subsampled contourlet transform

摘要

This paper provides a fusion technique for multi-focus imaging using cross bilateral filter and non-subsampled contourlet transform. The snapshots are decomposed into distinct approximation and detail components. The original image and approximation component is passed through cross bilateral filter to obtain approximation weight map. Whereas, the detail components are combined using weighted average to obtain detail weight map. The weights are combined together and used with original images to obtain the resultant fused image. Visual and quantitative analysis shows the significance of proposed scheme in comparison to state of art fusion schemes.