B-Spline Pyramidal Direction Filter Banks and Its Application to Remote Sensing Image Fusion

Contourlet utilities Laplacian pyramid transform to obtain high band parts which contains much more information than that of the difference pyramid constructed from B-Spline pyramid and causes information losing easily.In this paper,B-Spline pyramidal direction filter banks is proposed.Firstly,it constructs the different pyramid from B-Spline pyramid,obtains a multiscale decomposition tree which is similar to Laplacian pyramid.Then,it combine the different pyramid and directional filter banks to get a novel multiscale and multidirectional decomposition called B-Spline pyramidal direction filter banks.Finally,it applies this novel algorithm to image fusion.Experiment shows that it has a better performance than the image fusion schemes based on contourlet transform.B-Spline pyramidal direction filter banks can also be applied in image coding and image denoising.