论文标题
带有隐式流程编码的动态场景的框架插值
Frame Interpolation for Dynamic Scenes with Implicit Flow Encoding
论文作者
论文摘要
在本文中,我们提出了一种算法,以在动态场景的两对图像之间插值。虽然在过去的几年中,在框架插值方面取得了重大进展,但当前的方法无法处理具有亮度和照明变化的图像,即使图像很快被捕获也很常见。我们建议通过利用现有的光流方法来解决这个问题,这些方法对照明的变化高度鲁棒。具体而言,使用使用现有预训练的流动网络估算的双向流,我们预测了从中间帧到两个输入图像的流。为此,我们建议将双向流对基于坐标的网络进行编码,该网络由超网络提供动力,以获得跨时间的流量的连续表示。一旦获得估计的流,我们将在现有的混合网络中使用它们来获得最终的中间帧。通过广泛的实验,我们证明我们的方法能够比最新的框架插值算法产生明显更好的结果。
In this paper, we propose an algorithm to interpolate between a pair of images of a dynamic scene. While in the past years significant progress in frame interpolation has been made, current approaches are not able to handle images with brightness and illumination changes, which are common even when the images are captured shortly apart. We propose to address this problem by taking advantage of the existing optical flow methods that are highly robust to the variations in the illumination. Specifically, using the bidirectional flows estimated using an existing pre-trained flow network, we predict the flows from an intermediate frame to the two input images. To do this, we propose to encode the bidirectional flows into a coordinate-based network, powered by a hypernetwork, to obtain a continuous representation of the flow across time. Once we obtain the estimated flows, we use them within an existing blending network to obtain the final intermediate frame. Through extensive experiments, we demonstrate that our approach is able to produce significantly better results than state-of-the-art frame interpolation algorithms.