论文标题
双流量的多视频再生变形
Multiview Regenerative Morphing with Dual Flows
论文作者
论文摘要
本文旨在解决多视图设置下图像变形的新任务,该任务将两组多视图像作为输入,并生成中间渲染,这些渲染不仅在两个输入集之间表现出平稳的过渡,而且还可以确保在任何过渡状态下的不同视图跨视图。为了实现这一目标,我们提出了一种新的方法,称为多视元素再生变形,该方法将变形过程制定为优化,以解决刚性变换和最佳传播插值。鉴于源场和目标场景的多视图输入图像,我们首先学习了一个体积表示,该图表为每个场景的几何形状和外观建模以实现新视图的渲染。然后,通过求解瓦斯林指标的两个体积表示之间的最佳运输来获得两个场景之间的变形。我们的方法不依赖用户指定的对应关系或2D/3D输入网格,并且我们不假定源场和目标场景的任何预定义类别。所提出的一致性插值方案直接在多视图图像上起作用,以产生多视图自由形态的新颖且在视觉上合理的效果。
This paper aims to address a new task of image morphing under a multiview setting, which takes two sets of multiview images as the input and generates intermediate renderings that not only exhibit smooth transitions between the two input sets but also ensure visual consistency across different views at any transition state. To achieve this goal, we propose a novel approach called Multiview Regenerative Morphing that formulates the morphing process as an optimization to solve for rigid transformation and optimal-transport interpolation. Given the multiview input images of the source and target scenes, we first learn a volumetric representation that models the geometry and appearance for each scene to enable the rendering of novel views. Then, the morphing between the two scenes is obtained by solving optimal transport between the two volumetric representations in Wasserstein metrics. Our approach does not rely on user-specified correspondences or 2D/3D input meshes, and we do not assume any predefined categories of the source and target scenes. The proposed view-consistent interpolation scheme directly works on multiview images to yield a novel and visually plausible effect of multiview free-form morphing.