FW-GAN包括:(i)一个流导融合模块,可以扭曲过去的帧以帮助合成,这个模块也被用于鉴别器,以帮助增强合成视频的连贯性和质量;(ii)一个warping net,来warp多张服装图像来改善服装纹理(iii)a parsing constraint loss解析约束损失,用来缓解由于不同姿态、多样的服装导致的/图像分割映射不对齐的问题。在新采集的数据集上...
It consists of: (i) a flow-guided fusion module that warps the past frames to assist synthesis, which is also adopted in the discriminator to help enhance the coherence and quality of the synthesized video; (ii) a warping net that is designed to warp clothes image for the refinement of ...
Specifically, the self-attention maps of a particular layer and frame are recomputed as a linear combination of itself and the self-attention maps of the same layer and the previous frame, warped by the flow on the normal maps of the two frames. We show that manipulating the self-attention...
PWC-Net是根据简单而完善的原则设计的:pyramidal processing, warping, and the use of a cost volume。在可学习的特征金字塔中,PWC-Net使用当前光流估计来warping第二幅图像的CNN特征。然后,它使用warping的特征和第一图像的特征来构建代价空间,该代价空间由CNN处理以估计光流。
提出了一种紧凑而有效的光流 CNN 模型,称为 PWC-Net。PWC-Net 的设计遵循简单而成熟的原则:金字塔结构、warping 和 cost volume 的使用。 PWC-Net 采用可学习的特征金字塔结构,利用当前的光流估计值对第二幅图像的 CNN 特征进行 warp 处理。然后使用经 warped 的特征和第一幅图像的特征来构建 cost volume,再由...
This repo provides a TensorFlow-based implementation of the wonderful paper "PWC-Net: CNNs for Optical Flow Using Pyramid, Warping, and Cost Volume," by Deqing Sun et al. (CVPR 2018). There are already a few attempts at implementing PWC-Net using TensorFlow out there. However, they either...
Deqing Sun, Xiaodong Yang, Ming-Yu Liu, and Jan Kautz. "PWC-Net: CNNs for Optical Flow Using Pyramid, Warping, and Cost Volume." CVPR 2018 or arXiv:1709.02371 Updated and extended version: "Models Matter, So Does Training: An Empirical Study of CNNs for Optical Flow Estimation." arXiv...
《PWC-Net:CNNs for Optical Flow Using Pyramid,Warping,and Cost Volume》论文笔记,程序员大本营,技术文章内容聚合第一站。
After each warping operation, errors are generated at the corresponding regions of the warped interpolation image. This results in an inaccurate discrete approximation of the temporal derivative and thus ends up affecting the accuracy of the estimated flow field. In this paper, we propose an ...
PWC-Net: CNNs for Optical Flow Using Pyramid, Warping, and Cost Volume Deqing Sun, Xiaodong Yang, Ming-Yu Liu, and Jan Kautz NVIDIA Abstract We present a compact but effective CNN model for op- tical flow, called PWC-Net. PWC-Net has been designed according to simple and well-...