High-quality blind defocus deblurring of multispectral images with optics and gradient prior.

Abstract

This paper presents a blind defocus deblurring method that produces high-quality deblurred multispectral images. The high quality is achieved by two means: i) more accurate kernel estimation based on the optics prior by simulating the simple lens imaging, and ii) the gradient-based inter-channel correlation with the reference image generated by the content-adaptive combination of adjacent channels for restoring the latent sharp image. As a result, our method gains the prominence on both effectiveness and efficiency in deblurring defocus multispectral images with very good restoration on the obscure details. The experiments on some multispectral image datasets demonstrate the advantages of our method over state-of-the-art deblurring methods.