Research on 3D reconstruction technology of large-scale substation equipment based on NeRF

IF 1.4 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Iet Science Measurement & Technology Pub Date : 2022-11-26 DOI:10.1049/smt2.12131

Shaotong Pei, Rui Yang, Yunpeng Liu, Wenxuan Xu, Gonghao Zhang

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Abstract

The high-quality 3D model is the key to digital twin and visualization. Here, the neural radiation field (NeRF) is applied to greatly improve the speed and accuracy of 3D reconstruction of large-scale substation equipment. The incremental SFM algorithm is used to accurately position the camera in open scenes, and the frame extraction experiment indicates that the single angle increment should not be greater than 8°. The reconstruction test is carried out on the power transformer and high-voltage experimental equipment following the circular shooting track for instant-NGP (a variant of NeRF). Compared with the traditional 3D reconstruction method, the speed of reconstruction is accelerated by 23–55 times, and the fidelity is improved by 2–3 times. Also, the deployment scheme of NeRF in the digital twin technology of large-scale substation equipment is proposed. The experimental results verify the effectiveness and feasibility of NeRF in practical application.

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基于NeRF的大型变电站设备三维重建技术研究

高质量的三维模型是实现数字孪生和可视化的关键。在这里，应用神经辐射场（NeRF）大大提高了大型变电站设备三维重建的速度和精度。增量SFM算法用于在开放场景中准确定位相机，帧提取实验表明，单个角度增量不应大于8°。在电力变压器和高压实验设备上，按照瞬时NGP（NeRF的变体）的圆形射击轨迹进行了重建测试。与传统的三维重建方法相比，重建速度加快了23–55倍，保真度提高了2–3倍。提出了NeRF在大型变电站设备数字孪生技术中的部署方案。实验结果验证了NeRF在实际应用中的有效性和可行性。

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来源期刊

Iet Science Measurement & Technology 工程技术-工程：电子与电气

CiteScore

4.30

自引率

7.10%

发文量

审稿时长

7.5 months

期刊介绍： IET Science, Measurement & Technology publishes papers in science, engineering and technology underpinning electronic and electrical engineering, nanotechnology and medical instrumentation.The emphasis of the journal is on theory, simulation methodologies and measurement techniques. The major themes of the journal are: - electromagnetism including electromagnetic theory, computational electromagnetics and EMC - properties and applications of dielectric, magnetic, magneto-optic, piezoelectric materials down to the nanometre scale - measurement and instrumentation including sensors, actuators, medical instrumentation, fundamentals of measurement including measurement standards, uncertainty, dissemination and calibration Applications are welcome for illustrative purposes but the novelty and originality should focus on the proposed new methods.