Levenberg-Marquardt algorithm function in openCV?

hi there, I'm trying and learning some optimization method and find the Levenberg-Marquardt algorithm. As I know there is CvLevMarq() function. However, I cannot find any c++ type function of Levenberg-Marquardt algorithm in openCV. I have find some Levenberg-Marquardt algorithm source code here, but I still prefer if openCV has its own function: http://www.shenlejun.cn/article/show.asp?id=17 thanks for any help!