arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1709.07599cs.CVcs.CGcs.GR
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基于深度神经网络的高分辨率形状补全

High-Resolution Shape Completion Using Deep Neural Networks for Global Structure and Local Geometry Inference

The University of Hong Kong(香港大学);University of Massachusetts, Amherst(马萨诸塞大学阿默斯特分校)

Xiaoguang Han, Zhen Li, Haibin Huang, Evangelos Kalogerakis, Yizhou Yu

摘要:

我们提出了一种数据驱动的方法来恢复丢失的部分三维形状。我们的方法是基于一个新的深度学习架构,由两个子网络组成:一个全局结构推理网络和一个局部几何细化网络。全局结构推断网络结合了长短期记忆上下文融合模块(LSTM-CF),其基于作为输入的一部分提供的多视图深度信息来推断形状的全局结构。它还包括一个3D全卷积(3DFCN)模块,该模块根据输入中的体积信息进一步丰富全局结构表示。在全局结构网络的指导下,局部几何细化网络将缺失区域周围的局部3D补丁作为输入,并通过体积编码器-解码器架构逐步产生高分辨率的完整表面。我们的方法以端到端的方式联合训练全局结构推理和局部几何细化网络。我们对六个对象类别进行了定性和定量评估,证明我们的方法在形状完成方面优于现有的最先进工作。

英文摘要:

We propose a data-driven method for recovering miss-ing parts of 3D shapes. Our method is based on a new deep learning architecture consisting of two sub-networks: a global structure inference network and a local geometry refinement network. The global structure inference network incorporates a long short-term memorized context fusion module (LSTM-CF) that infers the global structure of the shape based on multi-view depth information provided as part of the input. It also includes a 3D fully convolutional (3DFCN) module that further enriches the global structure representation according to volumetric information in the input. Under the guidance of the global structure network, the local geometry refinement network takes as input lo-cal 3D patches around missing regions, and progressively produces a high-resolution, complete surface through a volumetric encoder-decoder architecture. Our method jointly trains the global structure inference and local geometry refinement networks in an end-to-end manner. We perform qualitative and quantitative evaluations on six object categories, demonstrating that our method outperforms existing state-of-the-art work on shape completion.

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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