Projection model for flame chemiluminescence tomography based on lens imaging

Minggang Wan; Jihui Zhuang

doi:10.1117/1.OE.57.4.043106

17 April 2018 Projection model for flame chemiluminescence tomography based on lens imaging

Minggang Wan, Jihui Zhuang

Author Affiliations +

Optical Engineering, Vol. 57, Issue 4, 043106 (April 2018). https://doi.org/10.1117/1.OE.57.4.043106

Abstract

For flame chemiluminescence tomography (FCT) based on lens imaging, the projection model is essential because it formulates the mathematical relation between the flame projections captured by cameras and the chemiluminescence field, and, through this relation, the field is reconstructed. This work proposed the blurry-spot (BS) model, which takes more universal assumptions and has higher accuracy than the widely applied line-of-sight model. By combining the geometrical camera model and the thin-lens equation, the BS model takes into account perspective effect of the camera lens; by combining ray-tracing technique and Monte Carlo simulation, it also considers inhomogeneous distribution of captured radiance on the image plane. Performance of these two models in FCT was numerically compared, and results showed that using the BS model could lead to better reconstruction quality in wider application ranges.

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Minggang Wan and Jihui Zhuang "Projection model for flame chemiluminescence tomography based on lens imaging," Optical Engineering 57(4), 043106 (17 April 2018). https://doi.org/10.1117/1.OE.57.4.043106

Received: 17 December 2017; Accepted: 22 March 2018; Published: 17 April 2018

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