Dark Channel Based Multiframe Super-Resolution Reconstruction

Abstract

Multiframe super-resolution (MFSR) can obtain a high-resolution image from a set of lowresolution images. The performance of super-resolution is affected by the image prior information. The current super-resolution algorithms typically use total variation prior and its improved version, restoring the image edges well. However, it will produce artifacts and stair effects in the smooth region of the image. Therefore, we propose a dark channel-based MFSR algorithm to achieve edge-preserving and noisesuppressing. Firstly, the total variation prior is used to ensure the edge-preserving ability of the algorithm. Secondly, the dark channel prior is added to suppress artifacts and stair effects. Finally, the weights of the prior terms are iteratively adapted to obtain the final high-resolution image. Experiments show that the proposed algorithm can achieve a better result in objective and subjective visual evaluations.INDEX TERMS Image process, multiframe super-resolution, dark channel prior, total variation prior, image prior combination, Bayesian framework.

An Extensive Comparative Analysis on Various Efficient Techniques for Image Super-Resolution

“…S. Shi et al, [10] propose a dim channel-based MFSR calculation to accomplish edge-safeguarding and commotion smothering. The complete variety, first and foremost, earlier is utilized to guarantee the edge-saving capacity of the calculation.…”