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College of Transportation, Jilin University, Changchun 130022, ChinaAbstract : In order to solve the problem that the traditional single threshold method can not segment the shadow path mark image successfully, a new algorithm based on Regiongrowing has been proposed for our indigenously designed and manufactured vision navigation intelligent vehicle.

针对作者自主开发的视觉导航区域交通智能车辆的导航路径在阴影条件下难以应用单一传统阈值方法分割提取的问题，提出了基于区域生长的图像分割方法。

The simulation experiment proved that the algorithm can reach a good precision and has very important practical value. We can make use of it as an indispensably part of the gravity aided navigation algorithm.

仿真实验证实，算法具有良好的精度，可用于作为重力辅助导航算法的一部分使用，具有很强的实用价值。

An expert system is proposed to diagnose faults of platform inertial navigation system.

分析了导航系统对故障诊断的基本要求以及导航系统的故障诊断方法。

Combined navigation system based on inertial technology is paid attention to and developed.

以惯性技术为基础的组合导航系统得到了重视和发展。

Strapdown inertial navigation system is a trend of inertial technology in recent years.

捷联惯导系统是近年来惯性技术的一个发展方向。

More attention and studies have been putting in the reliability of Inertial Navigation System .

惯性导航系统的可靠性问题受到越来越多的关注与研究，作为控制部件的导航计算机的可靠性严重关系到惯导系统的安全，因而对计算机系统进行可靠性设。。。

Based on error analysis, the influence of error sources on strapdown inertial navigation system s is discussed.

通过误差分析，讨论了各种误差源对捷联惯导系统的影响。

The calculation process of the strap-down inertial navigation system is studied.

研究了系统的计算过程。

Initial alignment is one of the key technologies which affect the effectiveness of the inertial navigation system.

惯导系统的初始对准是影响系统使用性能的关键技术之一，对准的精度与速度直接关系到惯性系统的精度与启动特性。

Of inertial navigation system installation results to exception.

惯性导航系统的安装结果例外。

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。