arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2201.03195eess.IVcs.CV
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伪残差引导的高精度深度图的端到端无损压缩

End-to-end lossless compression of high precision depth maps guided by pseudo-residual

School of Electronic and Computer Engineering, Shenzhen Graduate School, Peking University(北京大学深圳研究生院电子与计算机工程学院);Peng Cheng Laboratory(鹏城实验室)

Yuyang Wu, Wei Gao

摘要:

深度图作为表示空间信息的基本数据格式,在信号处理和计算机视觉领域有着广泛的应用。随着激光扫描仪或LiDAR等设备的快速发展,产生了大量高精度的深度图。因此,迫切需要探索一种新的具有更好压缩比的深度图压缩方法。利用广泛的深度学习环境,我们提出了一种基于端到端学习的高精度深度图无损压缩方法。整个过程由两个子过程组成,即深度图的预处理和处理后的深度图的深度无损压缩。深度无损压缩网络由两个子网络组成,称为有损压缩网络和无损压缩网络。我们利用伪残差的概念来指导残差分布的生成,避免引入上下文模型。我们的端到端无损压缩网络在工程编解码器上实现了具有竞争力的性能,并且具有较低的计算成本。

英文摘要:

As a fundamental data format representing spatial information, depth map is widely used in signal processing and computer vision fields. Massive amount of high precision depth maps are produced with the rapid development of equipment like laser scanner or LiDAR. Therefore, it is urgent to explore a new compression method with better compression ratio for high precision depth maps. Utilizing the wide spread deep learning environment, we propose an end-to-end learning-based lossless compression method for high precision depth maps. The whole process is comprised of two sub-processes, named pre-processing of depth maps and deep lossless compression of processed depth maps. The deep lossless compression network consists of two sub-networks, named lossy compression network and lossless compression network. We leverage the concept of pseudo-residual to guide the generation of distribution for residual and avoid introducing context models. Our end-to-end lossless compression network achieves competitive performance over engineered codecs and has low computational cost.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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