Frame loss concealment for stereoscopic video plus depth sequences
Frame loss concealment for stereoscopic video plus depth sequences
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DOI：
10.1109/tce.2011.6018892
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发表时间：
2011-09
影响因子：
4.3
通讯作者：
Taeyoung Chung;S. Sull;Chang-Su Kim
中科院分区：
文献类型：
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作者：
Taeyoung Chung;S. Sull;Chang-Su Kim
在这项工作中，提出了一种有效的帧丢失隐藏算法的立体视频加深度序列。为了隐藏一个错误的左彩色帧，我们外推运动矢量的时间错误隐藏。为了隐藏左深度帧，我们利用相应的左颜色帧的运动矢量。为了隐藏一个正确的颜色帧，我们采用了三维图像扭曲技术来确定帧间视图之间的匹配像素，并执行重建的运动矢量的相似性和匹配像素的强度差的基础上。最后，为了隐藏右深度帧，我们使用右颜色帧和左颜色帧的运动向量。仿真结果表明，该算法在恢复错误的颜色和深度帧方面比传统算法更有效。此外，它也表明，该算法可以用于有效的虚拟视图合成在容易出错的环境。
In this work, an efficient frame loss concealment algorithm for stereoscopic video plus depth sequences is proposed. To conceal an erroneous left color frame, we extrapolate motion vectors for the temporal error concealment. To conceal a left depth frame, we exploit the motion vectors of the corresponding left color frame. To conceal a right color frame, we employ a 3D image warping technique to determine matching pixels between inter-views, and perform the reconstruction based on the similarities of the motion vectors and the intensity differences of matching pixels. Finally, to conceal a right depth frame, we use the motion vectors of the right color frame and the left color frame. Simulation results show that the proposed algorithm is more effective than conventional algorithms in recovering erroneous color and depth frames. Moreover, it is also demonstrated that the proposed algorithm can be used for efficient virtual view synthesis in error prone environments.