摘要
在获取视频过程中,有许多因素会导致视频质量的退化,使得视频的空间分辨率降低;而摄像机曝光时间和拍摄帧率又限制了视频的时间分辨率。视频超分辨率重建是一种能有效提高视频时间分辨率和空间分辨率的方法,已经在计算机视觉和图像处理等领域引起了广泛关注。详细阐述了视频超分辨率重建研究的概念和必要性,并较全面地回顾了超分辨率技术近年来的发展历程,对视频超分辨率重建中关键问题进行了较为深入的分析,指出了当今研究难点和今后的研究方向,对视频超分辨率重建的应用前景进行了展望。
In the process of obtaining video,many factors lead to the degradation of the video quality,and lower the spatial resolution of video;on the other hand,the exposure time and the frame rate of camera limit the time resolution of video.Video super-resolution reconstruction is an effective way to improve the temporal resolution and the spatial resolution of video,which has aroused wide concern in computer vision and image processing fields.In this paper,the concept of video super-resolution is described and the development phases in recent years are reviewed.In addition,some of the key technologies are analyzed.Furthermore,the challenges in this field are pointed out.Finally,the application of video super-reconstruction technology is prospected.
出处
《信息与电子工程》
2011年第1期1-6,共6页
information and electronic engineering
基金
国家自然科学基金资助项目(No.61071161)
教育部科学技术研究重点资助项目(No.107094)
关键词
视频重建
空间超分辨率
时间超分辨率
帧间配准
时空对齐
video reconstruction
space super-resolution
time super-resolution
frame to frame movement registration
spatial temporal alignment
