Free viewpoint video is generated on the basis of a video plus depth (V+D) virtual point rendering framework. Because of the limited bandwidth of video transmission, depth-image-based rendering (DIBR) has become a common method. Most DIBR methods not only have holes and ghost artifacts but also have problems with time continuity, leading to frequent flickers. In this paper, we make full use of time domain information in video sequences and adjacent frames to extract the static background image of the whole scene. Furthermore, we propose a weighted-fusion hole-filling method based on static background to fill holes and maintain time continuity. Experimental results show that the proposed method can improve the quality of virtual view images and strengthen spatio-temporal continuity.

中文翻译：

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基于时空连续性的视图合成

自由视点视频是基于视频加深度（V + D）虚拟点渲染框架生成的。由于视频传输的带宽有限，基于深度图像的渲染（DIBR）已成为一种常用方法。大多数DIBR方法不仅具有孔洞和重影伪影，而且在时间连续性方面存在问题，从而导致频繁闪烁。在本文中，我们充分利用视频序列和相邻帧中的时域信息来提取整个场景的静态背景图像。此外，我们提出了一种基于静态背景的加权融合孔填充方法来填充孔并保持时间连续性。实验结果表明，该方法可以提高虚拟视点图像的质量，增强时空连续性。