说明：  vs2008+opencv环境下，圆柱形棋盘的自标定程序，不使用库函数，自定义算法。可自动判别不同角度拍摄的圆柱棋盘照片上的可用网格数量，进而成功实现标定。
(Vs2008+ opencv environment, cylindrical board since the calibration procedure, do not use the library function, the custom algorithm. Can automatically recognize cylindrical chessboard images from the different angles, the number of available grid on which successful calibration.)