Segmentation-aware Prior Assisted Joint Global Information Aggregated 3D Building Reconstruction

• URL: http://arxiv.org/abs/2410.18433v1
• Date: Thu, 24 Oct 2024 04:59:44 GMT
• Title: Segmentation-aware Prior Assisted Joint Global Information Aggregated 3D Building Reconstruction
• Authors: Hongxin Peng, Yongjian Liao, Weijun Li, Chuanyu Fu, Guoxin Zhang, Ziquan Ding, Zijie Huang, Qiku Cao, Shuting Cai,
• Abstract summary: Multi-View Stereo plays a pivotal role in civil engineering by facilitating 3D modeling, precise engineering surveying, quantitative analysis, as well as monitoring and maintenance. However, Multi-View Stereo algorithms encounter challenges in reconstructing weakly-textured regions within large-scale building scenes. In these areas, the stereo matching of pixels often fails, leading to inaccurate depth estimations. We propose an algorithm that accurately segments weakly-textured regions and constructs their plane priors. This function selects optimal plane prior information based on global information in the prior candidate set, constrained by geometric consistency during the depth estimation update process.
• Score: 6.839442579589125
• License:
• Abstract: Multi-View Stereo plays a pivotal role in civil engineering by facilitating 3D modeling, precise engineering surveying, quantitative analysis, as well as monitoring and maintenance. It serves as a valuable tool, offering high-precision and real-time spatial information crucial for various engineering projects. However, Multi-View Stereo algorithms encounter challenges in reconstructing weakly-textured regions within large-scale building scenes. In these areas, the stereo matching of pixels often fails, leading to inaccurate depth estimations. Based on the Segment Anything Model and RANSAC algorithm, we propose an algorithm that accurately segments weakly-textured regions and constructs their plane priors. These plane priors, combined with triangulation priors, form a reliable prior candidate set. Additionally, we introduce a novel global information aggregation cost function. This function selects optimal plane prior information based on global information in the prior candidate set, constrained by geometric consistency during the depth estimation update process. Experimental results on both the ETH3D benchmark dataset, aerial dataset, building dataset and real scenarios substantiate the superior performance of our method in producing 3D building models compared to other state-of-the-art methods. In summary, our work aims to enhance the completeness and density of 3D building reconstruction, carrying implications for broader applications in urban planning and virtual reality.

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