本文系统地讨论了基于双星的伪卫星无源区域定位系统的定位理论以及方法。
The theory and method of the region passive pseudolites positioning based on geostationary satellite positioning system are systematically discussed.
由于心脏的变形和血液的流动，MRI图像中出现了弱边界、局部梯度极大值区域、伪影等现象。
Due to cardiac deformation and blood flowing, weak edges, local gradient maximum regions and artifacts are found in the MRI images.
该方法利用垂直投影形成的峰谷规律能有效地去除伪车牌区域，解决了复杂背景中的车牌定位问题。
Firstly, traditional horizontal projection for coarse location is used, and then vertical projection is proposed to remove the pseudo-plate region according to the law of plate.
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