arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 2203.12082cs.CV
收藏

PlaneMVS:基于多视角立体的三维平面重建

PlaneMVS: 3D Plane Reconstruction from Multi-View Stereo

The Pennsylvania State University(宾夕法尼亚州立大学);OPPO US Research Center(OPPO美国研究中心);InnoPeak Technology, Inc.(InnoPeak科技公司)

Jiachen Liu, Pan Ji, Nitin Bansal, Changjiang Cai, Qingan Yan, Xiaolei Huang, Yi Xu

AI总结:

PlaneMVS首次在端到端MVS框架中结合语义平面检测与倾斜平面扫描,利用多视角几何和软池化损失学习平面先验,显著超越单视图及MVS平面重建方法。

摘要:

我们提出了一个名为PlaneMVS的新框架,用于从已知相机位姿的多个输入视图进行三维平面重建。以往大多数基于学习的平面重建方法从单张图像重建三维平面,高度依赖单视图回归,并受到深度尺度模糊的困扰。相比之下,我们利用多视角几何的优势,采用多视角立体(MVS)流水线重建三维平面。我们将平面重建解耦为语义平面检测分支和平面MVS分支。语义平面检测分支基于单视图平面检测框架,但存在差异。平面MVS分支采用一组倾斜平面假设来替代传统的深度假设,执行平面扫描策略,并最终学习像素级平面参数及其平面深度图。我们展示了如何以平衡的方式学习这两个分支,并提出了一种软池化损失来关联两个分支的输出,使它们相互受益。在各种室内数据集上的大量实验表明,PlaneMVS在平面检测和三维几何指标上均显著优于最先进的(SOTA)单视图平面重建方法。由于学习到的平面先验,我们的方法甚至优于一组SOTA基于学习的MVS方法。据我们所知,这是首个在端到端MVS框架内进行三维平面重建的工作。源代码:https://github.com/oppo-us-research/PlaneMVS。

英文摘要:

We present a novel framework named PlaneMVS for 3D plane reconstruction from multiple input views with known camera poses. Most previous learning-based plane reconstruction methods reconstruct 3D planes from single images, which highly rely on single-view regression and suffer from depth scale ambiguity. In contrast, we reconstruct 3D planes with a multi-view-stereo (MVS) pipeline that takes advantage of multi-view geometry. We decouple plane reconstruction into a semantic plane detection branch and a plane MVS branch. The semantic plane detection branch is based on a single-view plane detection framework but with differences. The plane MVS branch adopts a set of slanted plane hypotheses to replace conventional depth hypotheses to perform plane sweeping strategy and finally learns pixel-level plane parameters and its planar depth map. We present how the two branches are learned in a balanced way, and propose a soft-pooling loss to associate the outputs of the two branches and make them benefit from each other. Extensive experiments on various indoor datasets show that PlaneMVS significantly outperforms state-of-the-art (SOTA) single-view plane reconstruction methods on both plane detection and 3D geometry metrics. Our method even outperforms a set of SOTA learning-based MVS methods thanks to the learned plane priors. To the best of our knowledge, this is the first work on 3D plane reconstruction within an end-to-end MVS framework. Source code: https://github.com/oppo-us-research/PlaneMVS.

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。

↑