基于小波局部适应插值IBP算法的视频超分辨率重建  

Video super-resolution reconstruction based on local-adaptation interpolation wavelet transform IBP algorithm

作　　者：吴媛媛[1] 何小海[1] 孙琰玥[1] 陈为龙[1] 

机构地区：[1]四川大学电子信息学院图像信息研究所,成都610064

出　　处：《四川大学学报（自然科学版）》2011年第2期349-355,共7页Journal of Sichuan University(Natural Science Edition)

基　　金：国家自然科学基金(61071161);教育部科学技术研究重点项目(107094)

摘　　要：针对基于迭代反投影(IBP)算法的视频超分辨率重建,提出了一种改善初始估计来提高重建效果的方法.本文采用小波局部适应插值得到初始估计,结合滑动窗的视频重建模型,由一段低分辨率的视频重建一段高分辨率的视频,达到提高视频空间分辨率的目的.实验表明改进算法得到的高分辨率视频有更好的视觉效果.For the video super-resolution reconstruction based on iterative back projection （IBP） algorithm, an improved method by raising the initial guess for improving reconstruction quality is proposed. Firstly a better initial guess is performed with wavelet-local adaptation interpolation. Then Combined with segmentation reconstruction model, a super-resolution video is reconstructed from a low-resolution video associated with the promotion of spatial resolution. At last the experimental results show that the reconstructed super-resolution video has better visual effect.

关 键 词：迭代反投影 视频超分辨率重建 小波局部适应插值 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]