Zengshou DongMingjun LiuFengchun ZhangNOx Estimation Based on Flame Image of High Temperature Air Combustion.537-5412008ISDA (1)https://doi.org/10.1109/ISDA.2008.41https://doi.ieeecomputersociety.org/10.1109/ISDA.2008.41conf/isda/2008db/conf/isda/isda2008-1.html#DongLZ08