跨尺度三维场景显示精度提高技术研究

Research of Display Accuracy Improvement in Multi-scale 3D Scene

在跨尺度三维场景中,由于空间尺度变化非常大,单一的基准坐标系存在很大的应用局限性,当相机观察距离基准坐标系远的目标时,目标会出现抖动现象。空间目标在统一时间基准下位置和姿态不断发生变化,当相机跟随目标近距离固定观察目标的某一区域时,目标也会出现抖动。提出了基于关注目标惯性坐标系设置基准坐标系的方法,在空间尺度变化时可以有效提高显示精度。提出了基于关注目标本体坐标系设置基准坐标系的方法,当相机近距离固定观察目标时也可以有效提高显示精度。

In the multi-scale 3D scene, the single reference coordinate system has much application limitation due to the large spatial scale change, so the target will appear wobble phenomenon when the camera observes the target in a large distance from the reference coordinate. Due to the fact that the position and attitude of a spatial object change all the time under the unified time datum, the target will appear wobble phenomenon when the camera following a target observes a certain area near the target. A setting method of reference coordinate system based on the observation of the inertial coordinate system was proposed, which could effectively improve the display accuracy when the space scale changed. What＇s more, a setting method of reference coordinate system based on the observation of the body-fixed coordinate system was proposed, which could effectively improve the display accuracy when the camera observed the target in a short distance.