PlaneMVS: 3D Plane Reconstruction from Multi-View Stereo

TL;DR

PlaneMVS introduces an innovative multi-view stereo framework for 3D plane reconstruction that leverages multi-view geometry and plane priors, outperforming existing single-view and MVS methods in accuracy.

Contribution

This work is the first to integrate 3D plane reconstruction into an end-to-end multi-view stereo pipeline, combining semantic detection and plane sweeping with a novel soft-pooling loss.

Findings

Outperforms state-of-the-art single-view plane reconstruction methods.

Surpasses existing MVS methods due to learned plane priors.

Achieves superior 3D geometry accuracy on indoor datasets.

Abstract

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.