The number of calibration curve: apparatus can store 9 calibration curve, 5 for one line, 4 for binomial parabola.
校正曲线数：仪器可存储9条标定曲线，5条为一元一次直线，4条为二项式抛物线。
2
According to the influence of degenerate point configurations of projection matrix, the number of calibration correspondences and the track of users head are improved.
根据对投影矩阵的退化点结构的影响，改进了选取标定的对应点个数和用户头部的运动轨迹。
3
Analyzing flour protein quality, the calibration model is the best when the wavelength number receives 7.