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.
出处
《四川大学学报（自然科学版）》
CAS
CSCD
北大核心
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)
关键词
迭代反投影
视频超分辨率重建
小波局部适应插值
iterative back projection, video super-resolution reconstruction, local-adaptation interpola tion wavelet transform
