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首页> 外文期刊>IEEE transactions on multimedia >New Hole-Filling Method Using Extrapolated Spatio-Temporal Background Information for a Synthesized Free-View
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New Hole-Filling Method Using Extrapolated Spatio-Temporal Background Information for a Synthesized Free-View

机译：新的空穴填充方法使用综合自由视图的外推时空背景信息

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摘要

This paper introduces a new hole-filling method using extrapolated spatio-temporal background information to obtain a synthesized free-view. New temporal background modeling is proposed, which incorporates stationary temporal information in the hole-filling process and preserves the temporal consistency of synthesized views. A background codebook is distinguished from a non-overlapped patch-based codebook, which contributes to extracting reliable temporal background information. Furthermore, a depth-map driven spatial local background estimation is also addressed to discriminate the background holes in each disocclusion and to define two spatial BG constraints that represent the lower and upper bounds of a background candidate. Holes are filled by comparing the similarities between the temporal background information and the spatial background constraints. In addition, a depth map-based ghost removal filter is described to solve the problem of the non-fit between a color image and the corresponding depth map of a virtual view. Finally, an exemplar-based inpainting is applied to fill in the remaining holes with a priority function that includes a new depth term. The experimental results demonstrated that the proposed method led to results that promised subjective and objective improvement over state-of-the-art methods.
机译：本文介绍了一种新的空穴填充方法，使用外推的时空背景信息，获得合成的自由视图。提出了新的时间背景建模，该模型包括在空穴填充过程中的静止时间信息，并保留合成视图的时间一致性。背景码本与基于非重叠的补丁的码本不同，这有助于提取可靠的时间背景信息。此外，还寻址深度映射驱动的空间局部背景估计以区分每个解档中的背景孔，并定义两个空间BG约束，其表示背景候选的下限和上限。通过比较时间背景信息与空间背景约束之间的相似性来填充孔。另外，描述了一种基于深度图的幽灵移除滤波器来解决虚拟视图的彩色图像和相应深度图之间的不适合的问题。最后，应用示例基于的初始化以填充剩余孔，其中优先函数包括新深度术语。实验结果表明，该方法导致了对最先进的方法的主观和客观改善的结果。

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