| 刘进博*,张小虎.摄像测量在平台微小晃动量测量中的应用方法研究[J].实验力学,2013,28(4):431~438 |
| 摄像测量在平台微小晃动量测量中的应用方法研究 |
| On the Application Method of Videographic Measurement in the Platform Slight Shaking Measurement |
| 投稿时间：2012-10-19 修订日期：2013-01-10 |
| DOI：10.7520/1001-4888-12-140 |
| 中文关键词: 摄像测量 微小晃动 CCD像机 静态基准 修正 |
| 英文关键词:videographic measurment slight shaking CCD camera static benchmark modification |
| 基金项目: |
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| 中文摘要: |
| 平台在三维空间中的微小晃动反映到二维像平面上就是像点的变化。本文提出基于摄像测量学的小角度测量方法。通过固连在平台上的CCD像机对惯性空间中静态基准的实时观测,解算得到由于平台微小晃动引起的像机姿态变化量;利用固连关系得到平台的小角度变化量,并通过静态和动态实验证明了该方法准确可行,在36′晃动幅度下,测量精度优于5″。该方法在保证精度前提下,可以降低系统硬件成本,可用于修正车载式光学测量设备的平台晃动误差,具有一定的理论研究意义和工程应用价值。 |
| 英文摘要: |
| Platform slight shaking in 3-dimensional space can be reflected on a 2-dimensional image plane as image point change. A small angle measurement method is proposed in this paper, based on videographic measurement. For a CCD camera fixed on a platform, through real time observation of its slight shaking with respect to a static benchmark in inertial space, the camera pose change due to the platform slight shaking can be calculated. The platform slight shaking can be transformed into the camera small angle shaking based on the relation between platform and CCD camera. This method is verified by both static and dynamic experiment. When platform's shaking ranges from 0 to 36′, the measuring precision is better than 5″. This method can be used to modify the measurement error of vehicle-mounted optical measurement device due to the platform shaking. |
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