Fig. 1. Principle of optical tomography imaging with single projection

Fig. 2. Physical structure of dynamic flame tomography based on cascade beam splitting imaging

Fig. 3. Matrix based on two-dimensional discrete convolution

Fig. 4. Tomography experiment of dynamic flame. (a) Model of test structure; (b) chromatography experiment device of propane and butane combustion flame

Fig. 5. Experimental arrangement for calibrating point spread function of optical imaging system

Fig. 6. Calibration of tomography system based on reticule. (a) Camera 1; (b) camera 2; (c) camera 3; (d) camera 4

Fig. 7. Properties of straight edge response of calibration plate images obtained by camera 1

Fig. 8. Values of σ in point spread function and the size of convolution kernel for the images obtained by different cameras. (a) Camera 1; (b) camera 2; (c) camera 3; (d) camera 4

Fig. 9. Chromatography test system. (a) Spatial distribution of objects; (b) focused and defocused images

Fig. 10. Verification of common optical path structure for tomography

Fig. 11. Temporal evolution of combustion flame of carbon oxides. (a) Section 1; (b) section 2; (c) section 3; (d) section 4

Fig. 12. Spatial evolution of combustion flame of carbon oxides. (a) t=1 s; (b) t=2 s; (c) t=3 s; (d) t=4 s; (e) t=5 s; (f) t=6 s;(g) t=7 s; (h) t=8 s

Fig. 13. Gray value variation curves of combustion flame of carbon-oxygen compounds

Fig. 14. Temporal evolution of combustion flame of mixture of propane and butane. (a) Section 1; (b) section 2; (c) section 3; (d) section 4

Fig. 15. Gray value variation curves of combustion flame of mixture of propane and butane

Fig. 16. Spatial evolution of combustion flame of mixture of propane and butane. (a) t=1 s; (b) t=2 s; (c) t=3 s; (d) t=4 s; (e) t=5 s;(f) t=6 s; (g) t=7 s; (h) t=8 s