镜头模糊对基于化学发光三维重建的影响

来源 :高温气体动力学国家重点实验室2017年度夏季学术研讨会 | 被引量 : 0次 | 上传用户：nightwish110

【摘要】

：

化学发光常用于火焰结构及燃烧激发组分的研究,而基于基于化学发光的层析计算技术(Computed Tomography of Chemiluminescence)在高时空分辨率的三维燃烧诊断中具有很大潜力.

【作者】

：

王宽亮李飞余西龙

【机构】

：

中国科学院力学研究所高温气体动力学国家重点实验室,北京市海淀区100190;中国科学院大学工程科学学院,北京,100049中国科学院力学研究所高温气体动力学国家重点实验室,北京市海淀区100190

【出处】

：

高温气体动力学国家重点实验室2017年度夏季学术研讨会

【发表日期】

：

2017年8期

【关键词】

：

火焰结构化学发光三维重建焦外模糊效应反演算法

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化学发光常用于火焰结构及燃烧激发组分的研究,而基于基于化学发光的层析计算技术(Computed Tomography of Chemiluminescence)在高时空分辨率的三维燃烧诊断中具有很大潜力.其原理是利用多视角下的二维投影结合反演算法来计算目标区域的三维浓度场的分布.通常来说,对于投影成像过程的准确模拟至关重要,而焦外模糊现象必然会对目标区域内的投影值产生影响.为了分析模糊效应对反演重建结果的影响,采用了三种成像模型(清晰成像模型、焦外成像模型、反卷积模型)对同一火焰进行重建.结果显示考虑了焦外模糊效应的模型具有最佳的重建保真度,但是相比其他两种成像模型耗时更多.而反卷积处理能够在不总加耗时的前提下提高重建准确性.

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镜头模糊对基于化学发光三维重建的影响

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