Edge-preserving interpolation for down/up sampling-based depth compression
Edge-preserving interpolation for down/up sampling-based depth compression
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DOI：
10.1109/icip.2012.6467106
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发表时间：
2012-09
期刊：
影响因子：
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通讯作者：
Huiping Deng;Li Yu;Zixiang Xiong
中科院分区：
文献类型：
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作者：
Huiping Deng;Li Yu;Zixiang Xiong
在深度压缩中保留边缘是提高合成视点质量的重要因素，提出了一种新的基于纹理和深度信息的降/上采样深度编码的保边缘深度上采样方法。我们考虑了深度图与其对应的纹理图像之间的边缘相似性以及深度图之间的结构相似性，建立了一个权重模型。基于加权模型，从下采样深度图的局部协方差系数估计最优最小均方误差上采样系数。实验结果表明，本文提出的基于下/上采样的深度编码内插方法提高了编码效率和合成视点质量。
Preserving the edges in depth compression is important for improving the synthesized view quality, this paper presents a novel edge-preserving depth up-sampling method for down/up sampling-based depth coding using both the texture and depth information. We take into account the edge similarity between depth maps and their corresponding texture images as well as the structural similarity among depth maps to build a weight model. Based on the weight model, the optimal MMSE up-sampling coefficients are estimated from the local covariance coefficients of the down-sampled depth map. Experimental results show that our proposed interpolation method for down/up sampling-based depth coding improves both the coding efficiency and synthesized view quality.