Compression of depth information for 3D rendering
Compression of depth information for 3D rendering
复制标题
DOI：
10.1109/3dtv.2009.5069669
复制
发表时间：
2009-05
期刊：
影响因子：
--
通讯作者：
P. Zanuttigh;G. Cortelazzo
中科院分区：
文献类型：
--
作者：
P. Zanuttigh;G. Cortelazzo
本文提出了一种新的深度图压缩策略。该方案首先进行分割，识别和提取边缘和主要对象，然后对分割区域的形状引入一种有效的压缩策略。在随后的步骤中，使用一种新的算法来预测从分割的区域和一组规则间隔的样本的表面形状。最后，使用标准图像压缩技术有效地压缩了少量的预测残差。实验结果表明，该方案不仅提供了一个显着的增益超过JPEG2000的各种类型的深度图，但也产生深度图没有边缘文物特别适合3D变形和自由视点视频应用。
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.