论文标题
实施VBM3D视频Denoising方法和一些变体
Implementation of the VBM3D Video Denoising Method and Some Variants
论文作者
论文摘要
VBM3D是众所周知的Denoising算法BM3D的视频的扩展，该视频利用了变换域中类似贴片的堆栈的稀疏表示。扩展名相当简单：类似的2D贴片是从包括相邻框架的时空邻域中获取的。尽管简单起见，该算法在降级性能和计算复杂性之间仍具有良好的权衡。在这项工作中，我们重新审视了此方法，提供了开源的C ++实现，以重现结果。给出了详细的描述，并彻底讨论了参数的选择。此外，我们讨论了原始算法的几个扩展：（1）多尺度实现，（2）使用3D补丁，（3）使用光流来指导补丁搜索。这些扩展允许获得与最新艺术状态竞争的结果。
VBM3D is an extension to video of the well known image denoising algorithm BM3D, which takes advantage of the sparse representation of stacks of similar patches in a transform domain. The extension is rather straightforward: the similar 2D patches are taken from a spatio-temporal neighborhood which includes neighboring frames. In spite of its simplicity, the algorithm offers a good trade-off between denoising performance and computational complexity. In this work we revisit this method, providing an open-source C++ implementation reproducing the results. A detailed description is given and the choice of parameters is thoroughly discussed. Furthermore, we discuss several extensions of the original algorithm: (1) a multi-scale implementation, (2) the use of 3D patches, (3) the use of optical flow to guide the patch search. These extensions allow to obtain results which are competitive with even the most recent state of the art.
