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arXiv 2203.15401cs.CV
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基于多视图的神经人脸视频压缩

Neural Face Video Compression using Multiple Views

ETH Zurich(苏黎世联邦理工学院);Apple(苹果公司)

Anna Volokitin, Stefan Brugger, Ali Benlalah, Sebastian Martin, Brian Amberg, Michael Tschannen

摘要:

深度生成模型的最新进展导致神经面部视频压缩编解码器的开发,其使用比工程编解码器少一个数量级的带宽。这些神经编解码器通过扭曲源帧并使用生成模型来补偿扭曲的源帧中的缺陷来重建当前帧。因此,使用少量的关键点而不是密集的流场来编码和传输扭曲,这与传统的编解码器相比带来了巨大的节省。然而,通过仅依赖于单个源帧,这些方法导致不准确的重建(例如,当转动头部时,头部的一侧变得未被遮挡并且必须被合成)。在这里,我们的目标是通过依赖多个源帧(面部视图)来解决这个问题,并呈现令人鼓舞的结果。

英文摘要:

Recent advances in deep generative models led to the development of neural face video compression codecs that use an order of magnitude less bandwidth than engineered codecs. These neural codecs reconstruct the current frame by warping a source frame and using a generative model to compensate for imperfections in the warped source frame. Thereby, the warp is encoded and transmitted using a small number of keypoints rather than a dense flow field, which leads to massive savings compared to traditional codecs. However, by relying on a single source frame only, these methods lead to inaccurate reconstructions (e.g. one side of the head becomes unoccluded when turning the head and has to be synthesized). Here, we aim to tackle this issue by relying on multiple source frames (views of the face) and present encouraging results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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