Concentric mosaics offer a quick solution to construct a virtual copy of a real environment, and navigate in the virtual environment. However, the huge amount of data associated with concentric mosaics is a heavy burden for its application. A 3D wavelet transform-based compressor has been proposed in previous work to compress the concentric mosaics. In this paper, we greatly improve the performance of the 3D wavelet coder with a data rearrangement mechanism called "smart rebinning". The proposed scheme first aligns the concentric mosaic image shots along the horizontal direction and then rebins the shots into multi-perspective panoramas. Smart rebinning greatly improves the cross shot correlation and enables the coder to better explore the redundancy among shots. Experimental results show that the performance of the 3D wavelet coder improves an average of 4.3dB with the use of smart rebinning. The proposed coder outperforms MPEG-2 coding of concentric mosaics by an average of 3.7dB.
同心镶嵌提供了一种快速解决方案,可以构建真实环境的虚拟副本并在虚拟环境中导航。但是,与同心镶嵌相关的大量数据为其应用带来了沉重负担。在先前的工作中已经提出了一种基于3D小波变换的压缩器来压缩同心镶嵌图。在本文中,我们通过称为“智能重组”的数据重排机制极大地提高了3D小波编码器的性能。提出的方案首先将同心的马赛克图像镜头沿水平方向对齐,然后将这些镜头重新组合为多角度全景图。智能重新绑定大大改善了交叉镜头的相关性,并使编码人员能够更好地探索镜头之间的冗余性。实验结果表明,通过使用智能重组,3D小波编码器的性能平均提高了4.3dB。该编码器的性能比同心马赛克的MPEG-2编码平均高3.7dB。 P>
机译:智能重装可压缩同心镶嵌
机译:同心镶嵌压缩并重新组合狭缝(ROSS)
机译:同心镶嵌压缩并重新组合狭缝(ROSS)
机译:智能重合并压缩同心马赛克
机译:SA128:基于数据特征的柱状数据库的智能数据压缩技术
机译:具有同心环切片GRAPPA和SENSE的同时多层功能MRI中的线圈压缩
机译:智能分装可压缩同心马赛克