Seam-hiding for Looping Videos

Seam-hiding for Looping Videos
复制标题

循环视频的接缝隐藏

DOI:
10.1145/3150165.3152766
复制
发表时间:
2017
期刊:
--
影响因子:
--
通讯作者:
Durrant J
Durrant J
中科院分区:
--
文献类型:
--
作者:
Durrant J

文献摘要

参考文献

相似文献

所提出的算法创建一个无缝的循环视频剪辑从一个真实的世界的视频的一个几乎周期性的运动。对于具有重复运动的视频,例如蹦床上的人,即使内容非常相似,第一个和最后一个视频帧也可能不精确地对齐。以循环方式回放视频可能会导致重新开始过渡跳出并在空间上和对象速度方面看起来不连续。大多数关于视频循环的工作都试图在较长视频的时间轴中找到最佳重置点,但我们从这里开始,修改帧以隐藏跳转点。我们的方法本质上是将曲线拟合到场景中点的(x,y)和RGB坐标,然后使用梯度域优化来平滑这些曲线。我们解决了重要的定性因素,平衡对原始轨迹/曲线的保存平滑。我们的模块化系统还集成了视频稳定和修复功能,以科普更动态的视频。对于我们范围内的大多数视频,我们发现自动接缝隐藏是成功的。对于所提出的系统不能令人满意地产生无缝循环的情况下,我们希望我们的框架可以修改改进的组件,以实现更好的结果在未来。
The proposed algorithm creates a seamless looping video clip from a real world video of an almost-cyclic motion. For a video that has repeating motion, such as a person on a trampoline, the first and last video frames may not precisely line up, even though the content is very similar. Playing back the video in a looping fashion can cause the re-start transition to jump out and appear discontinuous, both spatially and in terms of object velocity. Most work on video looping has sought to find the best re-set point in a longer video's timeline, but we start there, and modify the frames to hide the jump point.Our approach essentially fits a curve to the (x, y) and RGB coordinates of points in the scene, and then smooths those curves using gradient domain optimisation. We address important qualitative factors, balancing smoothness against preservation of the original trajectories/curves. Our modular system also incorporates video stabilisation and inpainting, to cope with more dynamic videos.For most videos within our scope, we found that automatic seam-hiding is succesful. For the cases in which the proposed system cannot satisfactorily produce a seamless loop, we hope our framework can be modified with improved components to achieve better results in the future.
无约束视频的平滑循环
DOI: 10.1111/cgf.12682
发表时间: 2015
影响因子: 2.5
作者:
Laura Sevilla;Jonas Wulff;Kalyan Sunkavalli;Eli Shechtman
通讯作者: Eli Shechtman
立体快速视图插值:越简单越好
DOI: --
发表时间: 2008
期刊:
影响因子: --
作者:
N.Martin;S. Roy
通讯作者: S. Roy