摘要
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It is well known that optical tomography can accurately and quantitatively reconstruct the refractive index field of a transparent medium and display the three dimensional image of other physical quantities relevant to temperature or density. In this paper, a new multidirectional holographic interferometric system is built, and two kinds of image reconstruction algorithms are introduced and an automatic image processing system of interferogram is designed. A three dimentsional asymmetric gas flow field above a combustor is expertmentally investigated with holographic interferometry. The reconstructed temperatures are similar to those measured with a thermocouple.
关键词
光层折X射线摄影术
正交全息摄影
重建算法
温度测量
图像处理
Optical Tomography, Orthographic Holography, Reconstruction Algorithm,Image Processing, Temperature Measurement
