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首页> 外文期刊>The Journal of the Astronautical Sciences >Geometric Calibration of the Orion Optical Navigation Camera using Star Field Images
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Geometric Calibration of the Orion Optical Navigation Camera using Star Field Images

机译：使用星场图像对Orion光学导航相机进行几何校准

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The Orion Multi Purpose Crew Vehicle will be capable of autonomously navigating in cislunar space using images of the Earth and Moon. Optical navigation systems, such as the one proposed for Orion, require the ability to precisely relate the observed location of an object in a 2D digital image with the true corresponding line-of-sight direction in the camera's sensor frame. This relationship is governed by the camera's geometric calibration parameters - typically described by a set of five intrinsic parameters and five lens distortion parameters. While pre-flight estimations of these parameters will exist, environmental conditions often necessitate on-orbit recalibration. This calibration will be performed for Orion using an ensemble of star field images. This manuscript provides a detailed treatment of the theory and mathematics that will form the foundation of Orion's on-orbit camera calibration. Numerical results and examples are also presented.
机译：“猎户座”多用途乘员车将能够使用地球和月球的图像在顺月空间中自主导航。光学导航系统（例如为Orion提出的导航系统）要求具有将2D数字图像中观察到的物体位置与相机传感器框架中真实的相应视线方向精确关联的能力。这种关系由相机的几何校准参数控制-通常由一组五个固有参数和五个镜头畸变参数来描述。尽管将存在对这些参数的飞行前估计，但环境条件通常需要在轨重新校准。将使用一组星场图像对Orion进行此校准。该手稿提供了有关理论和数学的详细论述，将构成Orion在轨相机校准的基础。还给出了数值结果和示例。

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