计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (19): 230-234.

• 工程与应用 • 上一篇    下一篇

基于多层自适应背景模型的实时视频去噪算法

沈未名1,郭晓云1,杨黎东2   

  1. 1.武汉大学 测绘遥感信息工程国家重点实验室 多媒体通信工程中心,武汉 430072
    2.湖北科创高新网络视频股份有限公司 项目管理部,武汉 430071
  • 收稿日期:2007-09-29 修回日期:2007-12-03 出版日期:2008-07-01 发布日期:2008-07-01
  • 通讯作者: 沈未名

Real-time video denoising arithmetic based on adaptive multi-layers background

SHEN Wei-ming1,GUO Xiao-yun1,YANG Li-dong2   

  1. 1.Multimedia Communication Engineering Center,LIESMARS,Wuhan University,Wuhan 430072,China
    2.Hubei Kechuang Hi-tech Net-video Co.Ltd,Wuhan 430071,China
  • Received:2007-09-29 Revised:2007-12-03 Online:2008-07-01 Published:2008-07-01
  • Contact: SHEN Wei-ming

摘要: 提出了一种基于多层自适应背景模型的实时视频去噪算法。针对视频去噪的需求提出的多层自适应背景模型,是一种不仅适用于静态的背景,还适用于快速变化的背景。在背景经历突变再次稳定后,它能够在短暂的时间内完成背景模型的重建。多层自适应背景模型是自适应地单帧逐渐调整,因此它不存在多帧的时延与计算量。去噪效果表明,此算法对视频图像的视觉质量有明显改善。

关键词: 多层自适应背景模型, 视频去噪, 维纳滤波

Abstract: A real-time video denoising algorithm based on adaptive multi-layers background is presented in this paper.The adaptive multi-layers background,which is aimed at the demand for video denoising,not only applies to static scene,but also applies to unstable scene.The modification of multi-layers background would be accomplished by a short-term adjustment after the scene changed.Based on the multi-layers background,the video denoising algorithm promotes the distinct vision of static scene and the short-term inactive region.The model of multi-layers background adjusts step by step adaptively.So it is not in need of a long-term delay and expensive computation.Experiments demonstrate the effectiveness of this algorithm.

Key words: multi-layers background, video denoising, Wiener filter