...
首页> 外文期刊>IEEE Transactions on Circuits and Systems for Video Technology >Global motion estimation from coarsely sampled motion vector field and the applications
【24h】

Global motion estimation from coarsely sampled motion vector field and the applications

机译:粗采样运动矢量场的全局运动估计及其应用

获取原文
获取原文并翻译 | 示例
           

摘要

Global motion estimation is a powerful tool widely used in video processing and compression as well as in computer vision areas. We propose a new approach for estimating global motions from coarsely sampled motion vector fields. The proposed method minimizes the fitting error between the input motion vectors and the motion vectors generated from the estimated motion model using the Newton-Raphson method with outlier rejections. Applications of the proposed method in video coding include fast global motion estimation for MPEG-4 Advanced Simple Profile coding, MPEG-2 to MPEG-4 ASP transcoding, and error concealments. Simulation results and analyses are provided for the proposed method and the applications, which show the effectiveness of the method in terms of accuracy, robustness, and speed.
机译:全局运动估计是一种功能强大的工具,广泛用于视频处理和压缩以及计算机视觉领域。我们提出了一种从粗糙采样的运动矢量场估计全局运动的新方法。所提出的方法最小化了输入运动矢量与使用牛顿-拉夫森法从估计运动模型生成的运动矢量之间的拟合误差,并具有离群值剔除。所提出的方法在视频编码中的应用包括用于MPEG-4高级简单配置文件编码的快速全局运动估计,从MPEG-2到MPEG-4 ASP的代码转换以及错误隐藏。仿真结果和分析结果为所提方法和应用提供了依据,从准确性,鲁棒性和速度方面证明了该方法的有效性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号