To solve the instability of the equivalent factor, a novel two-step calibration method is proposed.
为了解决等效因子的不稳定性，提出了一种两步标定法。
In the first chapter, we introduce linear camera model and some general knowledge and several traditional methods of camera calibration, such as Direct linear Transformation and two-step method etc.
第一章介绍了线性摄像机模型以及摄像机定标的一般性知识和几种常见的传统定标方法，比如直接线性变换方法和两步法等。
For the first two kinds the equations of motion and transfer functions are known. The coefficients of the transfer functions are determined by means of classical step-by-step calibration.
前两种地震仪，它们的运动方程和传递函数已知，传递函数系数可以通过经典的分段标定方法求得。
For the first two kinds the equations of motion and transfer functions are known. The coefficients of the transfer functions are determined by means of classical step-by-step calibration.
前两种地震仪，它们的运动方程和传递函数已知，传递函数系数可以通过经典的分段标定方法求得。
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