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基于计算层析成像的火焰三维重建算法研究

Flame 3D Reconstruction Algorithm Based on Computed Tomography
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摘要 针对计算层析成像火焰三维重建,本文发展了一种新的迭代算法,乘型代数重建非局部平均滤波算法(MART-NLM),通过与现有迭代算法进行对比,发现MART-NLM具有更好的重建精度,可以有效抑制噪声和伪影,改善火焰锋面的重建质量;在存在5°角度误差及5%高斯噪声下仍能重建出火焰轮廓,具有较好鲁棒性. Aiming at the 3D reconstruction of flames based on computed tomography,this work proposes a new algorithm:the multiplicative algebraic reconstruction technique with non-local means(MART-NLM)filtering algorithm.By comparing it with existing algorithms,it is found that MART-NLM has better reconstruction accuracy,can effectively suppress noise and artifacts,and improve the reconstruction quality of flame front.Even with a 5°angle error and 5%Gaussian noise,the flame contour can still be reconstructed with good robustness.
作者 李响 雷庆春 徐文江 范玮 Li Xiang;Lei Qingchun;Xu Wenjiang;Fan Wei(School of Power and Energy,Northwestern Polytechnical University,Xi’an 710129,China;School of Aerospace Engineering,Xiamen University,Xiamen 361005,China)
出处 《燃烧科学与技术》 CAS CSCD 北大核心 2023年第6期660-666,共7页 Journal of Combustion Science and Technology
基金 国家科技重大专项资助项目(HT-J2019-I-0003-0004).
关键词 计算层析 火焰三维重建 乘型代数重建算法 computed tomography flame 3D reconstruction multiplicative algebraic reconstruction
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