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Compression of depth information for 3D rendering

机译:压缩深度信息以进行3D渲染

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摘要

This paper presents a novel strategy for the compression of depth maps. The proposed scheme starts with a segmentation step which identifies and extracts edges and main objects, then it introduces an efficient compression strategy for the segmented regions' shape. In the subsequent step a novel algorithm is used to predict the surface shape from the segmented regions and a set of regularly spaced samples. Finally the few prediction residuals are efficiently compressed using standard image compression techniques. Experimental results show that the proposed scheme not only offers a significant gain over JPEG2000 on various types of depth maps but also produces depth maps without edge artifacts particularly suited to 3D warping and free viewpoint video applications.
机译:本文提出了一种新的深度图压缩策略。提出的方案从分割步骤开始,该步骤识别并提取边缘和主要对象,然后为分割区域的形状引入有效的压缩策略。在随后的步骤中,使用一种新颖的算法从分割的区域和一组规则间隔的样本中预测表面形状。最后,使用标准图像压缩技术可以有效地压缩少量预测残差。实验结果表明,所提出的方案不仅在各种深度图上比JPEG2000有明显的增益,而且还能生成没有边缘伪影的深度图,特别适合3D变形和自由视点视频应用。

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