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arXiv 2007.02295cs.CV
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具有语义先验的多视图立体视觉

Multi view stereo with semantic priors

Bruno Kessler Foundation (FBK)(布鲁诺·凯斯勒基金会)

Elisavet Konstantina Stathopoulou, Fabio Remondino

摘要:

基于块的立体是目前在大规模多视图应用中用于密集3D重建的常用的基于图像的技术。这种流水线的典型步骤可以概括为立体对选择、深度图计算、深度图细化以及最后的融合,以生成3D场景的完整且准确的表示。在这项研究中,我们的目标是支持标准的密集三维重建的场景中实现的开源库OpenMVS通过使用语义先验。为此,在深度图融合步骤中,以及涉及3D场景相同部分的相邻视图的深度图之间的深度一致性检查,我们施加额外的语义约束,以消除可能的错误,并选择性地获得每个标签的分割点云,从而促进自动化朝着这个方向发展。为了保证相邻视图之间的语义一致性,可以考虑附加的语义标准,旨在消除属于不同类别的像素的失配。

英文摘要:

Patch-based stereo is nowadays a commonly used image-based technique for dense 3D reconstruction in large scale multi-view applications. The typical steps of such a pipeline can be summarized in stereo pair selection, depth map computation, depth map refinement and, finally, fusion in order to generate a complete and accurate representation of the scene in 3D. In this study, we aim to support the standard dense 3D reconstruction of scenes as implemented in the open source library OpenMVS by using semantic priors. To this end, during the depth map fusion step, along with the depth consistency check between depth maps of neighbouring views referring to the same part of the 3D scene, we impose extra semantic constraints in order to remove possible errors and selectively obtain segmented point clouds per label, boosting automation towards this direction. I n order to reassure semantic coherence between neighbouring views, additional semantic criterions can be considered, aiming to elim inate mismatches of pixels belonging in different classes.

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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